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Fix spdlog include.

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This commit is contained in:
THoehne 2024-09-19 15:41:33 +02:00
parent 2cd51e29ac
commit 44e16fc8fb
197 changed files with 33037 additions and 185 deletions
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4
Samples/DevPlayground/DevPlayground.cpp → DevPlayground/DevPlayground.cpp
View File

@ -1,5 +1,7 @@
#define P_USE_NAMESPACE_ALIAS
#include <Phanes.h>
#include "Phanes.h"
class DevPlayground : public PApp::PhanesProject
{

2
Engine/Source/Runtime/Core/Core.h
View File

@ -36,7 +36,7 @@
#else
#error The target system must be defined. (See https://github.com/scorpioblood/PhanesEngine for more information)
#error The target system must be defined. (See https://github.com/thoehne/PhanesEngine for more information)
#endif // P_WIN_BUILD

2
Engine/Source/Runtime/Core/Include.h
View File

@ -9,8 +9,6 @@
#include "Core/public/StartingPoint/EntryPoint.h"
// --- OSAL ----------------------------------------
#include "Core/public/HAL/PlatformTypes.h"

14
Engine/Source/Runtime/Core/private/StartingPoint/StartingPoint.cpp
View File

@ -10,7 +10,7 @@ static void IdleMsg()
HANDLE hConsole = GetStdHandle(STD_OUTPUT_HANDLE);
SetConsoleTextAttribute(hConsole, 12);
std::cout << "Welcome to PhanesEngine!" << std::endl << std::endl;
std::cout << "\n\nWelcome to PhanesEngine!" << std::endl << std::endl;
SetConsoleTextAttribute(hConsole, 15);
@ -35,14 +35,14 @@ static void IdleMsg()
Phanes::Core::Application::PhanesProject::PhanesProject(std::string _ProjectName) : projectName(_ProjectName)
{
}
Phanes::Core::Application::PhanesProject::PhanesProject(std::string _ProjectName)
: projectName(_ProjectName)
{};
Phanes::Core::Application::PhanesProject::~PhanesProject()
{
}
this->projectName = "Unnamed Project";
};
std::string Phanes::Core::Application::PhanesProject::GetName()
{
@ -51,5 +51,5 @@ std::string Phanes::Core::Application::PhanesProject::GetName()
void Phanes::Core::Application::PhanesProject::Run()
{
std::cin.get();
IdleMsg();
}

2
Engine/Source/Runtime/Core/public/HAL/PlatformTypes.h
View File

@ -1,7 +1,5 @@
#pragma once
#include "PhanesEnginePCH.h"
// ============================================= //
// Turn os specific types into global types. //
// ============================================= //

2
Engine/Source/Runtime/Core/public/Logging/Logging.h
View File

@ -1,7 +1,7 @@
#pragma once
#include "PhanesEnginePCH.h"
#include "PhanesEnginePCH.h"
#include "Core/Core.h"
#ifndef P_DEBUG

67
Engine/Source/Runtime/Core/public/Math/Detail/Vector3Decl.inl
View File

@ -7,6 +7,9 @@ namespace Phanes::Core::Math::Detail
template<RealType T, bool S>
struct construct_vec3 {};
template<RealType T, bool S>
struct move_vec3 {};
template<RealType T, bool S>
struct compute_vec3_add {};
@ -65,49 +68,43 @@ namespace Phanes::Core::Math::Detail
template<RealType T>
struct construct_vec3<T, false>
{
static constexpr void map(Phanes::Core::Math::TVector3<T, false>& v1, const TVector3<T, false>& v2)
static constexpr void map(Phanes::Core::Math::TVector3<T, false>& r, const TVector3<T, false>& v1)
{
v1.x = v2.x;
v1.y = v2.y;
v1.z = v2.z;
v1.w = (T)0.0;
memcpy(r.data, v1.data, 4 * sizeof(T));
}
static constexpr void map(Phanes::Core::Math::TVector3<T, false>& r, T s)
{
r.x = s;
r.y = s;
r.z = s;
r.w = (T)0.0;
}
static constexpr void map(Phanes::Core::Math::TVector3<T, false>& r, T x, T y, T z)
{
r.x = x;
r.y = y;
r.z = z;
r.w = (T)0.0;
}
static constexpr void map(Phanes::Core::Math::TVector3<T, false>& r, const Phanes::Core::Math::TVector2<T, false>& v1, T s)
{
r.x = v1.x;
r.y = v1.y;
r.z = s;
r.w = (T)0.0;
}
static constexpr void map(Phanes::Core::Math::TVector3<T, false>& v1, T s)
static constexpr void map(Phanes::Core::Math::TVector3<T, false>& r, const T* comp)
{
v1.x = s;
v1.y = s;
v1.z = s;
v1.w = (T)0.0;
}
static constexpr void map(Phanes::Core::Math::TVector3<T, false>& v1, T x, T y, T z)
{
v1.x = x;
v1.y = y;
v1.z = z;
v1.w = (T)0.0;
}
static constexpr void map(Phanes::Core::Math::TVector3<T, false>& v1, const Phanes::Core::Math::TVector2<T, false>& v2, T s)
{
v1.x = v2.x;
v1.y = v2.y;
v1.z = s;
}
static constexpr void map(Phanes::Core::Math::TVector3<T, false>& v1, const T* comp)
{
v1.x = comp[0];
v1.y = comp[1];
v1.z = comp[2];
v1.w = (T)0.0;
memcpy(r.data, comp, 3 * sizeof(T));
r.w = (T)0.0;
}
};
template<RealType T>
struct compute_vec3_add<T, false>
{

65
Engine/Source/Runtime/Core/public/Math/Detail/Vector4Decl.inl
View File

@ -7,6 +7,9 @@ namespace Phanes::Core::Math::Detail
template<RealType T, bool S>
struct construct_vec4 {};
template<RealType T, bool S>
struct move_vec4 {};
template<RealType T, bool S>
struct compute_vec4_add {};
@ -60,47 +63,43 @@ namespace Phanes::Core::Math::Detail
template<RealType T>
struct construct_vec4<T, false>
{
static constexpr void map(Phanes::Core::Math::TVector4<T, false>& v1, const TVector4<T, false>& v2)
static constexpr void map(Phanes::Core::Math::TVector4<T, false>& r, const TVector4<T, false>& v1)
{
v1.x = v2.x;
v1.y = v2.y;
v1.z = v2.z;
v1.w = v2.w;
memcpy(r.data, v1.data, 4 * sizeof(T));
}
static constexpr void map(Phanes::Core::Math::TVector4<T, false>& r, T s)
{
r.x = s;
r.y = s;
r.z = s;
r.w = s;
}
static constexpr void map(Phanes::Core::Math::TVector4<T, false>& r, T x, T y, T z, T w)
{
r.x = x;
r.y = y;
r.z = z;
r.w = w;
}
static constexpr void map(Phanes::Core::Math::TVector4<T, false>& r, const Phanes::Core::Math::TVector2<T, false>& v2, const Phanes::Core::Math::TVector2<T, false>& v3)
{
r.x = v2.x;
r.y = v2.y;
r.z = v3.x;
r.w = v3.y;
}
static constexpr void map(Phanes::Core::Math::TVector4<T, false>& v1, T s)
static constexpr void map(Phanes::Core::Math::TVector4<T, false>& r, const T* comp)
{
v1.x = s;
v1.y = s;
v1.z = s;
v1.w = s;
}
static constexpr void map(Phanes::Core::Math::TVector4<T, false>& v1, T x, T y, T z, T w)
{
v1.x = x;
v1.y = y;
v1.z = z;
v1.w = w;
}
static constexpr void map(Phanes::Core::Math::TVector4<T, false>& v1, const Phanes::Core::Math::TVector2<T, false>& v2, const Phanes::Core::Math::TVector2<T, false>& v3)
{
v1.x = v2.x;
v1.y = v2.y;
v1.z = v3.x;
v1.w = v3.y;
}
static constexpr void map(Phanes::Core::Math::TVector4<T, false>& v1, const T* comp)
{
memcpy(v1.data, comp, 4 * sizeof(T));
memcpy(r.data, comp, 4 * sizeof(T));
}
};
template<RealType T>
struct compute_vec4_add<T, false>
{

34
Engine/Source/Runtime/Core/public/Math/MathPCH.h
View File

@ -3,21 +3,25 @@
#pragma once
#include "Point.hpp"
#include "Plane.hpp"
#include "Vector2.hpp"
#include "Vector3.hpp"
#include "Vector4.hpp"
#include "Core/public/Math/Point.hpp"
#include "Core/public/Math/Plane.hpp"
#include "Core/public/Math/Line.hpp"
#include "Core/public/Math/Ray.hpp"
#include "IntPoint.hpp"
#include "IntVector2.hpp"
#include "IntVector3.hpp"
#include "IntVector4.hpp"
#include "Matrix2.hpp"
#include "Matrix3.hpp"
#include "Matrix4.hpp"
#include "Core/public/Math/Vector2.hpp"
#include "Core/public/Math/Vector3.hpp"
#include "Core/public/Math/Vector4.hpp"
#include "MathCommon.hpp"
#include "MathTypeConversion.hpp"
#include "MathUnitConversion.hpp"
#include "Core/public/Math/IntPoint.hpp"
#include "Core/public/Math/IntVector2.hpp"
#include "Core/public/Math/IntVector3.hpp"
#include "Core/public/Math/IntVector4.hpp"
#include "Core/public/Math/Matrix2.hpp"
#include "Core/public/Math/Matrix3.hpp"
#include "Core/public/Math/Matrix4.hpp"
#include "Core/public/Math/MathCommon.hpp"
#include "Core/public/Math/MathTypeConversion.hpp"
#include "Core/public/Math/MathUnitConversion.hpp"

37
Engine/Source/Runtime/Core/public/Math/Matrix3.hpp
View File

@ -50,16 +50,13 @@ namespace Phanes::Core::Math {
TMatrix3() = default;
/**
* Copy constructor.
*/
TMatrix3(TMatrix3<T, S>&& m)
: c0(std::move(m.c0)), c1(std::move(m.c1)), c2(std::move(m.c2))
{};
TMatrix3(const TMatrix3<T, S>& m1)
{
this->c0 = TVector3<T, S>(m1.c0);
this->c1 = TVector3<T, S>(m1.c1);
this->c2 = TVector3<T, S>(m1.c2);
}
TMatrix3(const TMatrix3<T, S>& m)
: c0(m.c0), c1(m.c1), c2(m.c2)
{};
/**
* Construct Matrix from 2d array.
@ -109,6 +106,28 @@ namespace Phanes::Core::Math {
this->c2 = v3;
}
TMatrix3<T, S>& operator= (TMatrix3<T, S>&& m)
{
if (this != &m)
{
this->c0 = std::move(m.c0);
this->c1 = std::move(m.c1);
this->c2 = std::move(m.c2);
}
return *this;
}
TMatrix3<T, S>& operator= (const TMatrix3<T, S>& m)
{
if (this != &m)
{
this->c0 = m.c0;
this->c1 = m.c1;
this->c2 = m.c2;
}
return *this;
}
public:
FORCEINLINE T operator() (int n, int m) const

40
Engine/Source/Runtime/Core/public/Math/Matrix4.hpp
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@ -38,17 +38,21 @@ namespace Phanes::Core::Math {
/// </summary>
TMatrix4() = default;
/// <summary>
/// Move constructor
/// </summary>
/// <param name="v"></param>
TMatrix4(TMatrix4<T, S>&& m)
: c0(std::move(m.c0)), c1(std::move(m.c1)), c2(std::move(m.c2)), c3(std::move(m.c3))
{};
/// <summary>
/// Copy constructor
/// </summary>
/// <param name="v"></param>
TMatrix4(const TMatrix4<T, S>& m)
{
this->c0 = m.c0;
this->c1 = m.c1;
this->c2 = m.c2;
this->c3 = m.c3;
}
: c0(m.c0), c1(m.c1), c2(m.c2), c3(m.c3)
{};
/// <summary>
/// Construct matrix with values.
@ -87,6 +91,30 @@ namespace Phanes::Core::Math {
this->c3 = TVector4(field[3]);
}
TMatrix4<T, S>& operator= (TMatrix4<T, S>&& m)
{
if (this != &m)
{
this->c0 = std::move(m.c0);
this->c1 = std::move(m.c1);
this->c2 = std::move(m.c2);
this->c3 = std::move(m.c3);
}
return *this;
}
TMatrix4<T, S>& operator= (const TMatrix4<T, S>& m)
{
if (this != &m)
{
this->c0 = m.c0;
this->c1 = m.c1;
this->c2 = m.c2;
this->c3 = m.c3;
}
return *this;
}
public:
FORCEINLINE T& operator() (int n, int m)

112
Engine/Source/Runtime/Core/public/Math/PlatformTypes.h Normal file
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@ -0,0 +1,112 @@
#pragma once
#include "PhanesEnginePCH.h"
// ============================================= //
// Turn os specific types into global types. //
// ============================================= //
// TODO: include int128
namespace Phanes::Core::Types
{
#ifdef P_WIN_BUILD
// MSCV++ specific types
typedef FLOAT128 float128;
//#elif P_UNIX_BUILD
//
// // GCC specific types
//
// typedef __float128 float128;
#endif
// Specific types size
//
// 8-Bit integer
typedef int8_t int8;
// 16-Bit integer
typedef int16_t int16;
// 32-Bit integer
typedef int32_t int32;
// 64-Bit integer
typedef int64_t int64;
// 8-Bit unsigned integer
typedef uint8_t uint8;
// 16-Bit unsigned integer
typedef uint16_t uint16;
// 32-Bit unsigned integer
typedef uint32_t uint32;
// 64-Bit unsigned integer
typedef uint64_t uint64;
// At least N bit types
//
// At least 8-Bit integer
typedef int_least8_t lint8;
// At least 16-Bit integer
typedef int_least16_t lint16;
// At least 32-Bit integer
typedef int_least32_t lint32;
// At least 64-Bit integer
typedef int_least64_t lint64;
// At least 8-Bit integer
typedef uint_least8_t ulint8;
// At least 16-Bit integer
typedef uint_least16_t ulint16;
// At least 32-Bit integer
typedef uint_least32_t ulint32;
// At least 64-Bit integer
typedef uint_least64_t ulint64;
// Fast N bit types
//
// Fast 8-bit integer
typedef int_fast8_t fint8;
// At least 16-Bit integer
typedef int_fast16_t fint16;
// At least 32-Bit integer
typedef int_fast32_t fint32;
// At least 64-Bit integer
typedef int_fast64_t fint64;
// At least 8-Bit integer
typedef uint_fast8_t ufint8;
// At least 16-Bit integer
typedef uint_fast16_t ufint16;
// At least 32-Bit integer
typedef uint_fast32_t ufint32;
// At least 64-Bit integer
typedef uint_fast64_t ufint64;
}

1
Engine/Source/Runtime/Core/public/Math/README.md
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@ -5,6 +5,7 @@
### Description
Math lib.
Math is designed, to be completly independent from the rest of Phanes.
### Notes

22
Engine/Source/Runtime/Core/public/Math/SIMD/PhanesVectorMathSSE.hpp
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@ -132,7 +132,7 @@ namespace Phanes::Core::Math::Detail
{
static FORCEINLINE void map(Phanes::Core::Math::TVector4<float, true>& v1, const TVector4<float, true>& v2)
{
v1.comp = _mm_setr_ps(v2.x, v2.y, v2.z, v2.w);
v1.comp = v2.comp;
}
@ -154,10 +154,18 @@ namespace Phanes::Core::Math::Detail
static FORCEINLINE void map(Phanes::Core::Math::TVector4<float, true>& v1, const float* s)
{
v1.comp = _mm_loadu_ps(s);
}
};
template<>
struct move_vec4<float, true>
{
static FORCEINLINE void map(Phanes::Core::Math::TVector4<float, true>& r, Phanes::Core::Math::TVector4<float, true>&& v)
{
r.data = v.data;
v.data = _mm_setzero_ps();
}
};
template<>
struct compute_vec4_add<float, true>
@ -336,6 +344,16 @@ namespace Phanes::Core::Math::Detail
}
};
template<>
struct move_vec3<float, true>
{
static FORCEINLINE void map(Phanes::Core::Math::TVector3<float, true>& r, Phanes::Core::Math::TVector3<float, true>&& v)
{
r.data = v.data;
v.data = _mm_setzero_ps();
}
};
template<>
struct compute_vec3_set<float, true>
{

2
Engine/Source/Runtime/Core/public/Math/SIMD/Storage.h
View File

@ -14,7 +14,7 @@ namespace Phanes::Core::Math::SIMD
template<size_t L, typename T>
struct Storage<L, T, false>
{
typedef T type[L];
typedef T type[4];
};
template<typename T>

7
Engine/Source/Runtime/Core/public/Math/Vector3.hpp
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@ -42,12 +42,6 @@ namespace Phanes::Core::Math {
/// </summary>
TVector3() = default;
/// <summary>
/// Copy constructor.
/// </summary>
/// <param name="v"></param>
TVector3(const TVector3<Real, S>& v);
/// <summary>
/// Broadcast s into x, y, z.
/// </summary>
@ -74,7 +68,6 @@ namespace Phanes::Core::Math {
/// <param name="v">Vector</param>
/// <param name="s">Scalar</param>
TVector3(const TVector2<Real, S>& v, Real s);
};

8
Engine/Source/Runtime/Core/public/Math/Vector3.inl
View File

@ -11,12 +11,6 @@
namespace Phanes::Core::Math
{
template<RealType T, bool S>
TVector3<T, S>::TVector3(const TVector3<Real, S>& v)
{
Detail::construct_vec3<T, S>::map(*this, v);
}
template<RealType T, bool S>
TVector3<T, S>::TVector3(Real _x, Real _y, Real _z)
{
@ -38,12 +32,12 @@ namespace Phanes::Core::Math
template<RealType T, bool S>
TVector3<T, S>::TVector3(const Real* comp)
{
static_assert(sizeof(comp) >= sizeof(T) * 3, "Size of comp has to be of at least three (3) components.");
Detail::construct_vec3<T, S>::map(*this, comp);
}
template<RealType T, bool S>
TVector3<T, S>& operator+=(TVector3<T, S>& v1, const TVector3<T, S>& v2)
{

6
Engine/Source/Runtime/Core/public/Math/Vector4.hpp
View File

@ -4,7 +4,6 @@
#include "Core/public/Math/Boilerplate.h"
#include "Core/public/Math/MathCommon.hpp"
#include "Core/public/Math/SIMD/Storage.h"
#include "Core/public/Math/MathFwd.h"
@ -20,6 +19,7 @@ namespace Phanes::Core::Math
template<RealType T, bool S = false>
struct TVector4
{
public:
using Real = T;
union
@ -57,12 +57,10 @@ namespace Phanes::Core::Math
};
public:
/// Default constructor
TVector4() = default;
/// Copy constructor
TVector4(const TVector4<Real, S>& v);
/// <summary>
/// Construct vector from one scalar.
/// <para>x,y,z,w = s</para>

7
Engine/Source/Runtime/Core/public/Math/Vector4.inl
View File

@ -10,12 +10,6 @@
namespace Phanes::Core::Math
{
template<RealType T, bool S>
TVector4<T, S>::TVector4(const TVector4<Real, S>& v)
{
Detail::construct_vec4<T, S>::map(*this, v);
}
template<RealType T, bool S>
TVector4<T, S>::TVector4(Real _x, Real _y, Real _z, Real _w)
{
@ -37,6 +31,7 @@ namespace Phanes::Core::Math
template<RealType T, bool S>
Phanes::Core::Math::TVector4<T, S>::TVector4(const Real* comp)
{
static_assert(sizeof(comp) >= sizeof(T) * 4, "Size of comp has to be of at least four (4) components.");
Detail::construct_vec4<T, S>::map(*this, comp);
}

2
Engine/Source/Runtime/Core/public/StartingPoint/StartingPoint.h
View File

@ -1,7 +1,5 @@
#pragma once
#include "PhanesEnginePCH.h"
#include "Core/Core.h"
// Entrypoint class for any Phanes game.

1
Engine/Source/Runtime/Phanes.h
View File

@ -2,5 +2,6 @@
// --- Core -------------------
#include "PhanesEnginePCH.h"
#include "Core/Include.h"

13
Engine/Source/Runtime/PhanesEnginePCH.h
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@ -1,21 +1,15 @@
#pragma once
// Contains precompiled headers used throught PhanesEngine //
#define NOMAXMIN
#ifndef PHANES_CORE_PCH_H
// STL
# include <cmath>
# include <stdint.h>
# include <vector>
# include <string>
# include <concepts>
# include <type_traits>
# include <string>
# include <memory>
#
# include <iostream>
@ -38,7 +32,4 @@
# include <spdlog/spdlog.h>
#
# // Local PCH
# // #include "Core/public/Math/MathPCH.h"
#
#endif // !PHANES_CORE_PCH_H
# include "Core/public/Math/MathPCH.h"

19
Engine/Source/ThirdParty/spdlog/.clang-format vendored Normal file
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@ -0,0 +1,19 @@
---
Language: Cpp
BasedOnStyle: Google
AccessModifierOffset: -4
Standard: c++17
IndentWidth: 4
TabWidth: 4
UseTab: Never
ColumnLimit: 100
AlignAfterOpenBracket: Align
BinPackParameters: false
AlignEscapedNewlines: Left
AlwaysBreakTemplateDeclarations: Yes
PackConstructorInitializers: Never
BreakConstructorInitializersBeforeComma: false
IndentPPDirectives: BeforeHash
SortIncludes: Never
...

53
Engine/Source/ThirdParty/spdlog/.clang-tidy vendored Normal file
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@ -0,0 +1,53 @@
Checks: 'cppcoreguidelines-*,
performance-*,
modernize-*,
google-*,
misc-*
cert-*,
readability-*,
clang-analyzer-*,
-performance-unnecessary-value-param,
-modernize-use-trailing-return-type,
-google-runtime-references,
-misc-non-private-member-variables-in-classes,
-readability-braces-around-statements,
-google-readability-braces-around-statements,
-cppcoreguidelines-avoid-magic-numbers,
-readability-magic-numbers,
-readability-magic-numbers,
-cppcoreguidelines-pro-type-vararg,
-cppcoreguidelines-pro-bounds-pointer-arithmetic,
-cppcoreguidelines-avoid-c-arrays,
-modernize-avoid-c-arrays,
-cppcoreguidelines-pro-bounds-array-to-pointer-decay,
-readability-named-parameter,
-cert-env33-c
'
WarningsAsErrors: ''
HeaderFilterRegex: '*spdlog/[^f].*'
FormatStyle: none
CheckOptions:
- key: google-readability-braces-around-statements.ShortStatementLines
value: '1'
- key: google-readability-function-size.StatementThreshold
value: '800'
- key: google-readability-namespace-comments.ShortNamespaceLines
value: '10'
- key: google-readability-namespace-comments.SpacesBeforeComments
value: '2'
- key: modernize-loop-convert.MaxCopySize
value: '16'
- key: modernize-loop-convert.MinConfidence
value: reasonable
- key: modernize-loop-convert.NamingStyle
value: CamelCase
- key: modernize-pass-by-value.IncludeStyle
value: llvm
- key: modernize-replace-auto-ptr.IncludeStyle
value: llvm
- key: modernize-use-nullptr.NullMacros
value: 'NULL'

6
Engine/Source/ThirdParty/spdlog/.git-blame-ignore-revs vendored Normal file
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@ -0,0 +1,6 @@
# clang-format
1a0bfc7a89f2d58e22605a4dc7e18a9a555b65aa
95c226e9c92928e20ccdac0d060e7241859e282b
9d52261185b5f2c454c381d626ec5c84d7b195f4
4b2a8219d5d1b40062d030441adde7d1fb0d4f84
0a53eafe18d983c7c8ba4cadd02d0cc7f7308f28

1
Engine/Source/ThirdParty/spdlog/.gitattributes vendored Normal file
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@ -0,0 +1 @@
* text=false

79
Engine/Source/ThirdParty/spdlog/.github/workflows/ci.yml vendored Normal file
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@ -0,0 +1,79 @@
name: ci
on: [push, pull_request]
jobs:
build_linux:
runs-on: ubuntu-latest
defaults:
run:
shell: bash
strategy:
fail-fast: false
matrix:
config:
- { compiler: gcc, version: 7, build_type: Release, cppstd: 11 }
- { compiler: gcc, version: 9, build_type: Release, cppstd: 17 }
- { compiler: gcc, version: 11, build_type: Debug, cppstd: 20 }
- { compiler: gcc, version: 12, build_type: Release, cppstd: 20 }
- { compiler: clang, version: 12, build_type: Debug, cppstd: 17, asan: OFF }
- { compiler: clang, version: 15, build_type: Release, cppstd: 20, asan: OFF }
container:
image: ${{ matrix.config.compiler == 'clang' && 'teeks99/clang-ubuntu' || matrix.config.compiler }}:${{ matrix.config.version }}
name: "${{ matrix.config.compiler}} ${{ matrix.config.version }} (C++${{ matrix.config.cppstd }}, ${{ matrix.config.build_type }})"
steps:
- uses: actions/checkout@main
- name: Setup
run: |
apt-get update
apt-get install -y curl git pkg-config libsystemd-dev
CMAKE_VERSION="3.24.2"
curl -sSL https://github.com/Kitware/CMake/releases/download/v${CMAKE_VERSION}/cmake-${CMAKE_VERSION}-linux-x86_64.sh -o install-cmake.sh
chmod +x install-cmake.sh
./install-cmake.sh --prefix=/usr/local --skip-license
- name: Setup Compiler
if: matrix.config.compiler == 'clang'
run: |
if [[ "${{ matrix.config.version }}" -ge 4 ]]; then
scripts/ci_setup_clang.sh "${{ matrix.config.version }}"
echo "CXXFLAGS=-stdlib=libc++" >> $GITHUB_ENV
fi
echo "CC=clang-${{ matrix.config.version }}" >> $GITHUB_ENV
echo "CXX=clang++-${{ matrix.config.version }}" >> $GITHUB_ENV
- name: Build
run: |
mkdir -p build && cd build
cmake .. \
-DCMAKE_BUILD_TYPE=${{ matrix.config.build_type }} \
-DCMAKE_CXX_STANDARD=${{ matrix.config.cppstd }} \
-DSPDLOG_BUILD_EXAMPLE=${{ matrix.config.examples || 'ON' }} \
-DSPDLOG_BUILD_EXAMPLE_HO=${{ matrix.config.examples || 'ON' }} \
-DSPDLOG_BUILD_WARNINGS=ON \
-DSPDLOG_BUILD_BENCH=OFF \
-DSPDLOG_BUILD_TESTS=ON \
-DSPDLOG_BUILD_TESTS_HO=OFF \
-DSPDLOG_SANITIZE_ADDRESS=${{ matrix.config.asan || 'ON' }}
make -j2
ctest -j2 --output-on-failure
build_osx:
runs-on: macOS-latest
name: "OS X Clang (C++11, Release)"
steps:
- uses: actions/checkout@main
- name: Build
run: |
mkdir -p build && cd build
cmake .. \
-DCMAKE_BUILD_TYPE=Release \
-DCMAKE_CXX_STANDARD=11 \
-DSPDLOG_BUILD_EXAMPLE=ON \
-DSPDLOG_BUILD_EXAMPLE_HO=ON \
-DSPDLOG_BUILD_WARNINGS=ON \
-DSPDLOG_BUILD_BENCH=OFF \
-DSPDLOG_BUILD_TESTS=ON \
-DSPDLOG_BUILD_TESTS_HO=OFF \
-DSPDLOG_SANITIZE_ADDRESS=OFF
make -j2
ctest -j2 --output-on-failure

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# Auto generated files
[Dd]ebug/
[Rr]elease/
build/*
*.slo
*.lo
*.o
*.obj
*.suo
*.tlog
*.ilk
*.log
*.pdb
*.idb
*.iobj
*.ipdb
*.opensdf
*.sdf
# Compiled Dynamic libraries
*.so
*.dylib
*.dll
# Compiled Static libraries
*.lai
*.la
*.a
*.lib
# Executables
*.exe
*.out
*.app
# Codelite
.codelite
# KDevelop
*.kdev4
# .orig files
*.orig
# example files
example/*
!example/example.cpp
!example/bench.cpp
!example/utils.h
!example/Makefile*
!example/example.sln
!example/example.vcxproj
!example/CMakeLists.txt
!example/meson.build
!example/multisink.cpp
!example/jni
# generated files
generated
version.rc
# Cmake
CMakeCache.txt
CMakeFiles
CMakeScripts
Makefile
cmake_install.cmake
install_manifest.txt
/tests/tests.VC.VC.opendb
/tests/tests.VC.db
/tests/tests
/tests/logs/*
spdlogConfig.cmake
spdlogConfigVersion.cmake
compile_commands.json
# idea
.idea/
.cache/
.vscode/
cmake-build-*/
*.db
*.ipch
*.filters
*.db-wal
*.opendb
*.db-shm
*.vcxproj
*.tcl
*.user
*.sln
# macos
*.DS_store
*.xcodeproj/
/.vs
/out/build
/CMakeSettings.json

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# Copyright(c) 2019 spdlog authors Distributed under the MIT License (http://opensource.org/licenses/MIT)
cmake_minimum_required(VERSION 3.10...3.21)
# ---------------------------------------------------------------------------------------
# Start spdlog project
# ---------------------------------------------------------------------------------------
include(cmake/utils.cmake)
include(cmake/ide.cmake)
spdlog_extract_version()
project(spdlog VERSION ${SPDLOG_VERSION} LANGUAGES CXX)
message(STATUS "Build spdlog: ${SPDLOG_VERSION}")
include(GNUInstallDirs)
# ---------------------------------------------------------------------------------------
# Set default build to release
# ---------------------------------------------------------------------------------------
if(NOT CMAKE_BUILD_TYPE AND NOT CMAKE_CONFIGURATION_TYPES)
set(CMAKE_BUILD_TYPE "Release" CACHE STRING "Choose Release or Debug" FORCE)
endif()
# ---------------------------------------------------------------------------------------
# Compiler config
# ---------------------------------------------------------------------------------------
if(SPDLOG_USE_STD_FORMAT)
set(CMAKE_CXX_STANDARD 20)
set(CMAKE_CXX_STANDARD_REQUIRED ON)
elseif(NOT CMAKE_CXX_STANDARD)
set(CMAKE_CXX_STANDARD 11)
set(CMAKE_CXX_STANDARD_REQUIRED ON)
endif()
# make sure __cplusplus is defined when using msvc and enable parallel build
if(MSVC)
string(APPEND CMAKE_CXX_FLAGS " /Zc:__cplusplus /MP")
endif()
set(CMAKE_CXX_EXTENSIONS OFF)
if(CMAKE_SYSTEM_NAME MATCHES "CYGWIN" OR CMAKE_SYSTEM_NAME MATCHES "MSYS" OR CMAKE_SYSTEM_NAME MATCHES "MINGW")
set(CMAKE_CXX_EXTENSIONS ON)
endif()
# ---------------------------------------------------------------------------------------
# Set SPDLOG_MASTER_PROJECT to ON if we are building spdlog
# ---------------------------------------------------------------------------------------
# Check if spdlog is being used directly or via add_subdirectory, but allow overriding
if(NOT DEFINED SPDLOG_MASTER_PROJECT)
if(CMAKE_CURRENT_SOURCE_DIR STREQUAL CMAKE_SOURCE_DIR)
set(SPDLOG_MASTER_PROJECT ON)
else()
set(SPDLOG_MASTER_PROJECT OFF)
endif()
endif()
option(SPDLOG_BUILD_ALL "Build all artifacts" OFF)
# build shared option
option(SPDLOG_BUILD_SHARED "Build shared library" OFF)
# precompiled headers option
option(SPDLOG_ENABLE_PCH "Build static or shared library using precompiled header to speed up compilation time" OFF)
# build position independent code
option(SPDLOG_BUILD_PIC "Build position independent code (-fPIC)" OFF)
# example options
option(SPDLOG_BUILD_EXAMPLE "Build example" ${SPDLOG_MASTER_PROJECT})
option(SPDLOG_BUILD_EXAMPLE_HO "Build header only example" OFF)
# testing options
option(SPDLOG_BUILD_TESTS "Build tests" OFF)
option(SPDLOG_BUILD_TESTS_HO "Build tests using the header only version" OFF)
# bench options
option(SPDLOG_BUILD_BENCH "Build benchmarks (Requires https://github.com/google/benchmark.git to be installed)" OFF)
# sanitizer options
option(SPDLOG_SANITIZE_ADDRESS "Enable address sanitizer in tests" OFF)
# warning options
option(SPDLOG_BUILD_WARNINGS "Enable compiler warnings" OFF)
# install options
option(SPDLOG_SYSTEM_INCLUDES "Include as system headers (skip for clang-tidy)." OFF)
option(SPDLOG_INSTALL "Generate the install target" ${SPDLOG_MASTER_PROJECT})
option(SPDLOG_USE_STD_FORMAT "Use std::format instead of fmt library." OFF)
option(SPDLOG_FMT_EXTERNAL "Use external fmt library instead of bundled" OFF)
option(SPDLOG_FMT_EXTERNAL_HO "Use external fmt header-only library instead of bundled" OFF)
option(SPDLOG_NO_EXCEPTIONS "Compile with -fno-exceptions. Call abort() on any spdlog exceptions" OFF)
if(SPDLOG_FMT_EXTERNAL AND SPDLOG_FMT_EXTERNAL_HO)
message(FATAL_ERROR "SPDLOG_FMT_EXTERNAL and SPDLOG_FMT_EXTERNAL_HO are mutually exclusive")
endif()
if(SPDLOG_USE_STD_FORMAT AND SPDLOG_FMT_EXTERNAL_HO)
message(FATAL_ERROR "SPDLOG_USE_STD_FORMAT and SPDLOG_FMT_EXTERNAL_HO are mutually exclusive")
endif()
if(SPDLOG_USE_STD_FORMAT AND SPDLOG_FMT_EXTERNAL)
message(FATAL_ERROR "SPDLOG_USE_STD_FORMAT and SPDLOG_FMT_EXTERNAL are mutually exclusive")
endif()
# misc tweakme options
if(WIN32)
option(SPDLOG_WCHAR_SUPPORT "Support wchar api" OFF)
option(SPDLOG_WCHAR_FILENAMES "Support wchar filenames" OFF)
else()
set(SPDLOG_WCHAR_SUPPORT OFF CACHE BOOL "non supported option" FORCE)
set(SPDLOG_WCHAR_FILENAMES OFF CACHE BOOL "non supported option" FORCE)
endif()
if(${CMAKE_SYSTEM_NAME} STREQUAL "Linux")
option(SPDLOG_CLOCK_COARSE "Use CLOCK_REALTIME_COARSE instead of the regular clock," OFF)
else()
set(SPDLOG_CLOCK_COARSE OFF CACHE BOOL "non supported option" FORCE)
endif()
option(SPDLOG_PREVENT_CHILD_FD "Prevent from child processes to inherit log file descriptors" OFF)
option(SPDLOG_NO_THREAD_ID "prevent spdlog from querying the thread id on each log call if thread id is not needed" OFF)
option(SPDLOG_NO_TLS "prevent spdlog from using thread local storage" OFF)
option(
SPDLOG_NO_ATOMIC_LEVELS
"prevent spdlog from using of std::atomic log levels (use only if your code never modifies log levels concurrently"
OFF)
option(SPDLOG_DISABLE_DEFAULT_LOGGER "Disable default logger creation" OFF)
# clang-tidy
option(SPDLOG_TIDY "run clang-tidy" OFF)
if(SPDLOG_TIDY)
set(CMAKE_CXX_CLANG_TIDY "clang-tidy")
set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
message(STATUS "Enabled clang-tidy")
endif()
if(SPDLOG_BUILD_PIC)
set(CMAKE_POSITION_INDEPENDENT_CODE ON)
endif()
find_package(Threads REQUIRED)
message(STATUS "Build type: " ${CMAKE_BUILD_TYPE})
# ---------------------------------------------------------------------------------------
# Static/Shared library
# ---------------------------------------------------------------------------------------
set(SPDLOG_SRCS src/spdlog.cpp src/stdout_sinks.cpp src/color_sinks.cpp src/file_sinks.cpp src/async.cpp src/cfg.cpp)
if(NOT SPDLOG_USE_STD_FORMAT AND NOT SPDLOG_FMT_EXTERNAL AND NOT SPDLOG_FMT_EXTERNAL_HO)
list(APPEND SPDLOG_SRCS src/bundled_fmtlib_format.cpp)
endif()
if(SPDLOG_BUILD_SHARED OR BUILD_SHARED_LIBS)
if(WIN32)
configure_file(${CMAKE_CURRENT_SOURCE_DIR}/cmake/version.rc.in ${CMAKE_CURRENT_BINARY_DIR}/version.rc @ONLY)
list(APPEND SPDLOG_SRCS ${CMAKE_CURRENT_BINARY_DIR}/version.rc)
endif()
add_library(spdlog SHARED ${SPDLOG_SRCS} ${SPDLOG_ALL_HEADERS})
target_compile_definitions(spdlog PUBLIC SPDLOG_SHARED_LIB)
if(MSVC)
target_compile_options(spdlog PUBLIC $<$<AND:$<CXX_COMPILER_ID:MSVC>,$<NOT:$<COMPILE_LANGUAGE:CUDA>>>:/wd4251
/wd4275>)
endif()
if(NOT SPDLOG_USE_STD_FORMAT AND NOT SPDLOG_FMT_EXTERNAL AND NOT SPDLOG_FMT_EXTERNAL_HO)
target_compile_definitions(spdlog PRIVATE FMT_LIB_EXPORT PUBLIC FMT_SHARED)
endif()
else()
add_library(spdlog STATIC ${SPDLOG_SRCS} ${SPDLOG_ALL_HEADERS})
endif()
add_library(spdlog::spdlog ALIAS spdlog)
set(SPDLOG_INCLUDES_LEVEL "")
if(SPDLOG_SYSTEM_INCLUDES)
set(SPDLOG_INCLUDES_LEVEL "SYSTEM")
endif()
target_compile_definitions(spdlog PUBLIC SPDLOG_COMPILED_LIB)
target_include_directories(spdlog ${SPDLOG_INCLUDES_LEVEL} PUBLIC "$<BUILD_INTERFACE:${CMAKE_CURRENT_LIST_DIR}/include>"
"$<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>")
target_link_libraries(spdlog PUBLIC Threads::Threads)
spdlog_enable_warnings(spdlog)
set_target_properties(spdlog PROPERTIES VERSION ${SPDLOG_VERSION} SOVERSION
${SPDLOG_VERSION_MAJOR}.${SPDLOG_VERSION_MINOR})
set_target_properties(spdlog PROPERTIES DEBUG_POSTFIX d)
if(COMMAND target_precompile_headers AND SPDLOG_ENABLE_PCH)
configure_file(${CMAKE_CURRENT_SOURCE_DIR}/cmake/pch.h.in ${PROJECT_BINARY_DIR}/spdlog_pch.h @ONLY)
target_precompile_headers(spdlog PRIVATE ${PROJECT_BINARY_DIR}/spdlog_pch.h)
endif()
# ---------------------------------------------------------------------------------------
# Header only version
# ---------------------------------------------------------------------------------------
add_library(spdlog_header_only INTERFACE)
add_library(spdlog::spdlog_header_only ALIAS spdlog_header_only)
target_include_directories(
spdlog_header_only ${SPDLOG_INCLUDES_LEVEL} INTERFACE "$<BUILD_INTERFACE:${CMAKE_CURRENT_LIST_DIR}/include>"
"$<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>")
target_link_libraries(spdlog_header_only INTERFACE Threads::Threads)
# ---------------------------------------------------------------------------------------
# Use fmt package if using external fmt
# ---------------------------------------------------------------------------------------
if(SPDLOG_FMT_EXTERNAL OR SPDLOG_FMT_EXTERNAL_HO)
if(NOT TARGET fmt::fmt)
find_package(fmt CONFIG REQUIRED)
endif()
target_compile_definitions(spdlog PUBLIC SPDLOG_FMT_EXTERNAL)
target_compile_definitions(spdlog_header_only INTERFACE SPDLOG_FMT_EXTERNAL)
# use external fmt-header-nly
if(SPDLOG_FMT_EXTERNAL_HO)
target_link_libraries(spdlog PUBLIC fmt::fmt-header-only)
target_link_libraries(spdlog_header_only INTERFACE fmt::fmt-header-only)
else() # use external compile fmt
target_link_libraries(spdlog PUBLIC fmt::fmt)
target_link_libraries(spdlog_header_only INTERFACE fmt::fmt)
endif()
set(PKG_CONFIG_REQUIRES fmt) # add dependency to pkg-config
endif()
# ---------------------------------------------------------------------------------------
# Add required libraries for Android CMake build
# ---------------------------------------------------------------------------------------
if(ANDROID)
target_link_libraries(spdlog PUBLIC log)
target_link_libraries(spdlog_header_only INTERFACE log)
endif()
# ---------------------------------------------------------------------------------------
# Misc definitions according to tweak options
# ---------------------------------------------------------------------------------------
set(SPDLOG_WCHAR_TO_UTF8_SUPPORT ${SPDLOG_WCHAR_SUPPORT})
foreach(
SPDLOG_OPTION
SPDLOG_WCHAR_TO_UTF8_SUPPORT
SPDLOG_WCHAR_FILENAMES
SPDLOG_NO_EXCEPTIONS
SPDLOG_CLOCK_COARSE
SPDLOG_PREVENT_CHILD_FD
SPDLOG_NO_THREAD_ID
SPDLOG_NO_TLS
SPDLOG_NO_ATOMIC_LEVELS
SPDLOG_DISABLE_DEFAULT_LOGGER
SPDLOG_USE_STD_FORMAT)
if(${SPDLOG_OPTION})
target_compile_definitions(spdlog PUBLIC ${SPDLOG_OPTION})
target_compile_definitions(spdlog_header_only INTERFACE ${SPDLOG_OPTION})
endif()
endforeach()
# ---------------------------------------------------------------------------------------
# If exceptions are disabled, disable them in the bundled fmt as well
# ---------------------------------------------------------------------------------------
if(SPDLOG_NO_EXCEPTIONS)
if(NOT SPDLOG_FMT_EXTERNAL AND NOT SPDLOG_FMT_EXTERNAL_HO)
target_compile_definitions(spdlog PUBLIC FMT_EXCEPTIONS=0)
endif()
if(NOT MSVC)
target_compile_options(spdlog PRIVATE -fno-exceptions)
else()
target_compile_options(spdlog PRIVATE /EHs-c-)
endif()
endif()
# ---------------------------------------------------------------------------------------
# Build binaries
# ---------------------------------------------------------------------------------------
if(SPDLOG_BUILD_EXAMPLE OR SPDLOG_BUILD_EXAMPLE_HO OR SPDLOG_BUILD_ALL)
message(STATUS "Generating example(s)")
add_subdirectory(example)
spdlog_enable_warnings(example)
if(SPDLOG_BUILD_EXAMPLE_HO)
spdlog_enable_warnings(example_header_only)
endif()
endif()
if(SPDLOG_BUILD_TESTS OR SPDLOG_BUILD_TESTS_HO OR SPDLOG_BUILD_ALL)
message(STATUS "Generating tests")
enable_testing()
add_subdirectory(tests)
endif()
if(SPDLOG_BUILD_BENCH OR SPDLOG_BUILD_ALL)
message(STATUS "Generating benchmarks")
add_subdirectory(bench)
endif()
# ---------------------------------------------------------------------------------------
# Install
# ---------------------------------------------------------------------------------------
if(SPDLOG_INSTALL)
message(STATUS "Generating install")
set(project_config_in "${CMAKE_CURRENT_LIST_DIR}/cmake/spdlogConfig.cmake.in")
set(project_config_out "${CMAKE_CURRENT_BINARY_DIR}/spdlogConfig.cmake")
set(config_targets_file "spdlogConfigTargets.cmake")
set(version_config_file "${CMAKE_CURRENT_BINARY_DIR}/spdlogConfigVersion.cmake")
set(export_dest_dir "${CMAKE_INSTALL_LIBDIR}/cmake/spdlog")
set(pkgconfig_install_dir "${CMAKE_INSTALL_LIBDIR}/pkgconfig")
set(pkg_config "${CMAKE_BINARY_DIR}/${PROJECT_NAME}.pc")
# ---------------------------------------------------------------------------------------
# Include files
# ---------------------------------------------------------------------------------------
install(DIRECTORY include/ DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}" PATTERN "fmt/bundled" EXCLUDE)
install(
TARGETS spdlog spdlog_header_only
EXPORT spdlog
LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR})
if(NOT SPDLOG_USE_STD_FORMAT AND NOT SPDLOG_FMT_EXTERNAL AND NOT SPDLOG_FMT_EXTERNAL_HO)
install(DIRECTORY include/${PROJECT_NAME}/fmt/bundled/
DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}/${PROJECT_NAME}/fmt/bundled/")
endif()
# ---------------------------------------------------------------------------------------
# Install pkg-config file
# ---------------------------------------------------------------------------------------
if(IS_ABSOLUTE "${CMAKE_INSTALL_INCLUDEDIR}")
set(PKG_CONFIG_INCLUDEDIR "${CMAKE_INSTALL_INCLUDEDIR}")
else()
set(PKG_CONFIG_INCLUDEDIR "\${prefix}/${CMAKE_INSTALL_INCLUDEDIR}")
endif()
if(IS_ABSOLUTE "${CMAKE_INSTALL_LIBDIR}")
set(PKG_CONFIG_LIBDIR "${CMAKE_INSTALL_LIBDIR}")
else()
set(PKG_CONFIG_LIBDIR "\${exec_prefix}/${CMAKE_INSTALL_LIBDIR}")
endif()
get_target_property(PKG_CONFIG_DEFINES spdlog INTERFACE_COMPILE_DEFINITIONS)
string(REPLACE ";" " -D" PKG_CONFIG_DEFINES "${PKG_CONFIG_DEFINES}")
string(CONCAT PKG_CONFIG_DEFINES "-D" "${PKG_CONFIG_DEFINES}")
configure_file("cmake/${PROJECT_NAME}.pc.in" "${pkg_config}" @ONLY)
install(FILES "${pkg_config}" DESTINATION "${pkgconfig_install_dir}")
# ---------------------------------------------------------------------------------------
# Install CMake config files
# ---------------------------------------------------------------------------------------
export(TARGETS spdlog spdlog_header_only NAMESPACE spdlog::
FILE "${CMAKE_CURRENT_BINARY_DIR}/${config_targets_file}")
install(EXPORT spdlog DESTINATION ${export_dest_dir} NAMESPACE spdlog:: FILE ${config_targets_file})
include(CMakePackageConfigHelpers)
configure_package_config_file("${project_config_in}" "${project_config_out}" INSTALL_DESTINATION ${export_dest_dir})
write_basic_package_version_file("${version_config_file}" COMPATIBILITY SameMajorVersion)
install(FILES "${project_config_out}" "${version_config_file}" DESTINATION "${export_dest_dir}")
# ---------------------------------------------------------------------------------------
# Support creation of installable packages
# ---------------------------------------------------------------------------------------
include(cmake/spdlogCPack.cmake)
endif()

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Header Only Version
==================================================================
Just copy the files to your build tree and use a C++11 compiler.
Or use CMake:
```
add_executable(example_header_only example.cpp)
target_link_libraries(example_header_only spdlog::spdlog_header_only)
```
Compiled Library Version
==================================================================
CMake:
```
add_executable(example example.cpp)
target_link_libraries(example spdlog::spdlog)
```
Or copy files src/*.cpp to your build tree and pass the -DSPDLOG_COMPILED_LIB to the compiler.
Important Information for Compilation:
==================================================================
* If you encounter compilation errors with gcc 4.8.x, please note that gcc 4.8.x does not fully support C++11. In such cases, consider upgrading your compiler or using a different version that fully supports C++11 standards
Tested on:
gcc 4.8.1 and above
clang 3.5
Visual Studio 2013

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The MIT License (MIT)
Copyright (c) 2016 Gabi Melman.
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
-- NOTE: Third party dependency used by this software --
This software depends on the fmt lib (MIT License),
and users must comply to its license: https://raw.githubusercontent.com/fmtlib/fmt/master/LICENSE

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# spdlog
Very fast, header-only/compiled, C++ logging library. [![ci](https://github.com/gabime/spdlog/actions/workflows/ci.yml/badge.svg)](https://github.com/gabime/spdlog/actions/workflows/ci.yml)&nbsp; [![Build status](https://ci.appveyor.com/api/projects/status/d2jnxclg20vd0o50?svg=true&branch=v1.x)](https://ci.appveyor.com/project/gabime/spdlog) [![Release](https://img.shields.io/github/release/gabime/spdlog.svg)](https://github.com/gabime/spdlog/releases/latest)
## Install
#### Header-only version
Copy the include [folder](https://github.com/gabime/spdlog/tree/v1.x/include/spdlog) to your build tree and use a C++11 compiler.
#### Compiled version (recommended - much faster compile times)
```console
$ git clone https://github.com/gabime/spdlog.git
$ cd spdlog && mkdir build && cd build
$ cmake .. && make -j
```
see example [CMakeLists.txt](https://github.com/gabime/spdlog/blob/v1.x/example/CMakeLists.txt) on how to use.
## Platforms
* Linux, FreeBSD, OpenBSD, Solaris, AIX
* Windows (msvc 2013+, cygwin)
* macOS (clang 3.5+)
* Android
## Package managers:
* Debian: `sudo apt install libspdlog-dev`
* Homebrew: `brew install spdlog`
* MacPorts: `sudo port install spdlog`
* FreeBSD: `pkg install spdlog`
* Fedora: `dnf install spdlog`
* Gentoo: `emerge dev-libs/spdlog`
* Arch Linux: `pacman -S spdlog`
* openSUSE: `sudo zypper in spdlog-devel`
* vcpkg: `vcpkg install spdlog`
* conan: `spdlog/[>=1.4.1]`
* conda: `conda install -c conda-forge spdlog`
* build2: ```depends: spdlog ^1.8.2```
## Features
* Very fast (see [benchmarks](#benchmarks) below).
* Headers only or compiled
* Feature-rich formatting, using the excellent [fmt](https://github.com/fmtlib/fmt) library.
* Asynchronous mode (optional)
* [Custom](https://github.com/gabime/spdlog/wiki/3.-Custom-formatting) formatting.
* Multi/Single threaded loggers.
* Various log targets:
* Rotating log files.
* Daily log files.
* Console logging (colors supported).
* syslog.
* Windows event log.
* Windows debugger (```OutputDebugString(..)```).
* Log to Qt widgets ([example](#log-to-qt-with-nice-colors)).
* Easily [extendable](https://github.com/gabime/spdlog/wiki/4.-Sinks#implementing-your-own-sink) with custom log targets.
* Log filtering - log levels can be modified at runtime as well as compile time.
* Support for loading log levels from argv or environment var.
* [Backtrace](#backtrace-support) support - store debug messages in a ring buffer and display them later on demand.
## Usage samples
#### Basic usage
```c++
#include "spdlog/spdlog.h"
int main()
{
spdlog::info("Welcome to spdlog!");
spdlog::error("Some error message with arg: {}", 1);
spdlog::warn("Easy padding in numbers like {:08d}", 12);
spdlog::critical("Support for int: {0:d}; hex: {0:x}; oct: {0:o}; bin: {0:b}", 42);
spdlog::info("Support for floats {:03.2f}", 1.23456);
spdlog::info("Positional args are {1} {0}..", "too", "supported");
spdlog::info("{:<30}", "left aligned");
spdlog::set_level(spdlog::level::debug); // Set global log level to debug
spdlog::debug("This message should be displayed..");
// change log pattern
spdlog::set_pattern("[%H:%M:%S %z] [%n] [%^---%L---%$] [thread %t] %v");
// Compile time log levels
// Note that this does not change the current log level, it will only
// remove (depending on SPDLOG_ACTIVE_LEVEL) the call on the release code.
SPDLOG_TRACE("Some trace message with param {}", 42);
SPDLOG_DEBUG("Some debug message");
}
```
---
#### Create stdout/stderr logger object
```c++
#include "spdlog/spdlog.h"
#include "spdlog/sinks/stdout_color_sinks.h"
void stdout_example()
{
// create a color multi-threaded logger
auto console = spdlog::stdout_color_mt("console");
auto err_logger = spdlog::stderr_color_mt("stderr");
spdlog::get("console")->info("loggers can be retrieved from a global registry using the spdlog::get(logger_name)");
}
```
---
#### Basic file logger
```c++
#include "spdlog/sinks/basic_file_sink.h"
void basic_logfile_example()
{
try
{
auto logger = spdlog::basic_logger_mt("basic_logger", "logs/basic-log.txt");
}
catch (const spdlog::spdlog_ex &ex)
{
std::cout << "Log init failed: " << ex.what() << std::endl;
}
}
```
---
#### Rotating files
```c++
#include "spdlog/sinks/rotating_file_sink.h"
void rotating_example()
{
// Create a file rotating logger with 5 MB size max and 3 rotated files
auto max_size = 1048576 * 5;
auto max_files = 3;
auto logger = spdlog::rotating_logger_mt("some_logger_name", "logs/rotating.txt", max_size, max_files);
}
```
---
#### Daily files
```c++
#include "spdlog/sinks/daily_file_sink.h"
void daily_example()
{
// Create a daily logger - a new file is created every day at 2:30 am
auto logger = spdlog::daily_logger_mt("daily_logger", "logs/daily.txt", 2, 30);
}
```
---
#### Backtrace support
```c++
// Debug messages can be stored in a ring buffer instead of being logged immediately.
// This is useful to display debug logs only when needed (e.g. when an error happens).
// When needed, call dump_backtrace() to dump them to your log.
spdlog::enable_backtrace(32); // Store the latest 32 messages in a buffer.
// or my_logger->enable_backtrace(32)..
for(int i = 0; i < 100; i++)
{
spdlog::debug("Backtrace message {}", i); // not logged yet..
}
// e.g. if some error happened:
spdlog::dump_backtrace(); // log them now! show the last 32 messages
// or my_logger->dump_backtrace(32)..
```
---
#### Periodic flush
```c++
// periodically flush all *registered* loggers every 3 seconds:
// warning: only use if all your loggers are thread-safe ("_mt" loggers)
spdlog::flush_every(std::chrono::seconds(3));
```
---
#### Stopwatch
```c++
// Stopwatch support for spdlog
#include "spdlog/stopwatch.h"
void stopwatch_example()
{
spdlog::stopwatch sw;
spdlog::debug("Elapsed {}", sw);
spdlog::debug("Elapsed {:.3}", sw);
}
```
---
#### Log binary data in hex
```c++
// many types of std::container<char> types can be used.
// ranges are supported too.
// format flags:
// {:X} - print in uppercase.
// {:s} - don't separate each byte with space.
// {:p} - don't print the position on each line start.
// {:n} - don't split the output into lines.
// {:a} - show ASCII if :n is not set.
#include "spdlog/fmt/bin_to_hex.h"
void binary_example()
{
auto console = spdlog::get("console");
std::array<char, 80> buf;
console->info("Binary example: {}", spdlog::to_hex(buf));
console->info("Another binary example:{:n}", spdlog::to_hex(std::begin(buf), std::begin(buf) + 10));
// more examples:
// logger->info("uppercase: {:X}", spdlog::to_hex(buf));
// logger->info("uppercase, no delimiters: {:Xs}", spdlog::to_hex(buf));
// logger->info("uppercase, no delimiters, no position info: {:Xsp}", spdlog::to_hex(buf));
}
```
---
#### Logger with multi sinks - each with a different format and log level
```c++
// create a logger with 2 targets, with different log levels and formats.
// The console will show only warnings or errors, while the file will log all.
void multi_sink_example()
{
auto console_sink = std::make_shared<spdlog::sinks::stdout_color_sink_mt>();
console_sink->set_level(spdlog::level::warn);
console_sink->set_pattern("[multi_sink_example] [%^%l%$] %v");
auto file_sink = std::make_shared<spdlog::sinks::basic_file_sink_mt>("logs/multisink.txt", true);
file_sink->set_level(spdlog::level::trace);
spdlog::logger logger("multi_sink", {console_sink, file_sink});
logger.set_level(spdlog::level::debug);
logger.warn("this should appear in both console and file");
logger.info("this message should not appear in the console, only in the file");
}
```
---
#### User-defined callbacks about log events
```c++
// create a logger with a lambda function callback, the callback will be called
// each time something is logged to the logger
void callback_example()
{
auto callback_sink = std::make_shared<spdlog::sinks::callback_sink_mt>([](const spdlog::details::log_msg &msg) {
// for example you can be notified by sending an email to yourself
});
callback_sink->set_level(spdlog::level::err);
auto console_sink = std::make_shared<spdlog::sinks::stdout_color_sink_mt>();
spdlog::logger logger("custom_callback_logger", {console_sink, callback_sink});
logger.info("some info log");
logger.error("critical issue"); // will notify you
}
```
---
#### Asynchronous logging
```c++
#include "spdlog/async.h"
#include "spdlog/sinks/basic_file_sink.h"
void async_example()
{
// default thread pool settings can be modified *before* creating the async logger:
// spdlog::init_thread_pool(8192, 1); // queue with 8k items and 1 backing thread.
auto async_file = spdlog::basic_logger_mt<spdlog::async_factory>("async_file_logger", "logs/async_log.txt");
// alternatively:
// auto async_file = spdlog::create_async<spdlog::sinks::basic_file_sink_mt>("async_file_logger", "logs/async_log.txt");
}
```
---
#### Asynchronous logger with multi sinks
```c++
#include "spdlog/async.h"
#include "spdlog/sinks/stdout_color_sinks.h"
#include "spdlog/sinks/rotating_file_sink.h"
void multi_sink_example2()
{
spdlog::init_thread_pool(8192, 1);
auto stdout_sink = std::make_shared<spdlog::sinks::stdout_color_sink_mt >();
auto rotating_sink = std::make_shared<spdlog::sinks::rotating_file_sink_mt>("mylog.txt", 1024*1024*10, 3);
std::vector<spdlog::sink_ptr> sinks {stdout_sink, rotating_sink};
auto logger = std::make_shared<spdlog::async_logger>("loggername", sinks.begin(), sinks.end(), spdlog::thread_pool(), spdlog::async_overflow_policy::block);
spdlog::register_logger(logger);
}
```
---
#### User-defined types
```c++
template<>
struct fmt::formatter<my_type> : fmt::formatter<std::string>
{
auto format(my_type my, format_context &ctx) const -> decltype(ctx.out())
{
return format_to(ctx.out(), "[my_type i={}]", my.i);
}
};
void user_defined_example()
{
spdlog::info("user defined type: {}", my_type(14));
}
```
---
#### User-defined flags in the log pattern
```c++
// Log patterns can contain custom flags.
// the following example will add new flag '%*' - which will be bound to a <my_formatter_flag> instance.
#include "spdlog/pattern_formatter.h"
class my_formatter_flag : public spdlog::custom_flag_formatter
{
public:
void format(const spdlog::details::log_msg &, const std::tm &, spdlog::memory_buf_t &dest) override
{
std::string some_txt = "custom-flag";
dest.append(some_txt.data(), some_txt.data() + some_txt.size());
}
std::unique_ptr<custom_flag_formatter> clone() const override
{
return spdlog::details::make_unique<my_formatter_flag>();
}
};
void custom_flags_example()
{
auto formatter = std::make_unique<spdlog::pattern_formatter>();
formatter->add_flag<my_formatter_flag>('*').set_pattern("[%n] [%*] [%^%l%$] %v");
spdlog::set_formatter(std::move(formatter));
}
```
---
#### Custom error handler
```c++
void err_handler_example()
{
// can be set globally or per logger(logger->set_error_handler(..))
spdlog::set_error_handler([](const std::string &msg) { spdlog::get("console")->error("*** LOGGER ERROR ***: {}", msg); });
spdlog::get("console")->info("some invalid message to trigger an error {}{}{}{}", 3);
}
```
---
#### syslog
```c++
#include "spdlog/sinks/syslog_sink.h"
void syslog_example()
{
std::string ident = "spdlog-example";
auto syslog_logger = spdlog::syslog_logger_mt("syslog", ident, LOG_PID);
syslog_logger->warn("This is warning that will end up in syslog.");
}
```
---
#### Android example
```c++
#include "spdlog/sinks/android_sink.h"
void android_example()
{
std::string tag = "spdlog-android";
auto android_logger = spdlog::android_logger_mt("android", tag);
android_logger->critical("Use \"adb shell logcat\" to view this message.");
}
```
---
#### Load log levels from the env variable or argv
```c++
#include "spdlog/cfg/env.h"
int main (int argc, char *argv[])
{
spdlog::cfg::load_env_levels();
// or from the command line:
// ./example SPDLOG_LEVEL=info,mylogger=trace
// #include "spdlog/cfg/argv.h" // for loading levels from argv
// spdlog::cfg::load_argv_levels(argc, argv);
}
```
So then you can:
```console
$ export SPDLOG_LEVEL=info,mylogger=trace
$ ./example
```
---
#### Log file open/close event handlers
```c++
// You can get callbacks from spdlog before/after a log file has been opened or closed.
// This is useful for cleanup procedures or for adding something to the start/end of the log file.
void file_events_example()
{
// pass the spdlog::file_event_handlers to file sinks for open/close log file notifications
spdlog::file_event_handlers handlers;
handlers.before_open = [](spdlog::filename_t filename) { spdlog::info("Before opening {}", filename); };
handlers.after_open = [](spdlog::filename_t filename, std::FILE *fstream) { fputs("After opening\n", fstream); };
handlers.before_close = [](spdlog::filename_t filename, std::FILE *fstream) { fputs("Before closing\n", fstream); };
handlers.after_close = [](spdlog::filename_t filename) { spdlog::info("After closing {}", filename); };
auto my_logger = spdlog::basic_logger_st("some_logger", "logs/events-sample.txt", true, handlers);
}
```
---
#### Replace the Default Logger
```c++
void replace_default_logger_example()
{
auto new_logger = spdlog::basic_logger_mt("new_default_logger", "logs/new-default-log.txt", true);
spdlog::set_default_logger(new_logger);
spdlog::info("new logger log message");
}
```
---
#### Log to Qt with nice colors
```c++
#include "spdlog/spdlog.h"
#include "spdlog/sinks/qt_sinks.h"
MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent)
{
setMinimumSize(640, 480);
auto log_widget = new QTextEdit(this);
setCentralWidget(log_widget);
int max_lines = 500; // keep the text widget to max 500 lines. remove old lines if needed.
auto logger = spdlog::qt_color_logger_mt("qt_logger", log_widget, max_lines);
logger->info("Some info message");
}
```
---
#### Mapped Diagnostic Context
```c++
// Mapped Diagnostic Context (MDC) is a map that stores key-value pairs (string values) in thread local storage.
// Each thread maintains its own MDC, which loggers use to append diagnostic information to log outputs.
// Note: it is not supported in asynchronous mode due to its reliance on thread-local storage.
#include "spdlog/mdc.h"
void mdc_example()
{
spdlog::mdc::put("key1", "value1");
spdlog::mdc::put("key2", "value2");
// if not using the default format, use the %& formatter to print mdc data
// spdlog::set_pattern("[%H:%M:%S %z] [%^%L%$] [%&] %v");
}
```
---
## Benchmarks
Below are some [benchmarks](https://github.com/gabime/spdlog/blob/v1.x/bench/bench.cpp) done in Ubuntu 64 bit, Intel i7-4770 CPU @ 3.40GHz
#### Synchronous mode
```
[info] **************************************************************
[info] Single thread, 1,000,000 iterations
[info] **************************************************************
[info] basic_st Elapsed: 0.17 secs 5,777,626/sec
[info] rotating_st Elapsed: 0.18 secs 5,475,894/sec
[info] daily_st Elapsed: 0.20 secs 5,062,659/sec
[info] empty_logger Elapsed: 0.07 secs 14,127,300/sec
[info] **************************************************************
[info] C-string (400 bytes). Single thread, 1,000,000 iterations
[info] **************************************************************
[info] basic_st Elapsed: 0.41 secs 2,412,483/sec
[info] rotating_st Elapsed: 0.72 secs 1,389,196/sec
[info] daily_st Elapsed: 0.42 secs 2,393,298/sec
[info] null_st Elapsed: 0.04 secs 27,446,957/sec
[info] **************************************************************
[info] 10 threads, competing over the same logger object, 1,000,000 iterations
[info] **************************************************************
[info] basic_mt Elapsed: 0.60 secs 1,659,613/sec
[info] rotating_mt Elapsed: 0.62 secs 1,612,493/sec
[info] daily_mt Elapsed: 0.61 secs 1,638,305/sec
[info] null_mt Elapsed: 0.16 secs 6,272,758/sec
```
#### Asynchronous mode
```
[info] -------------------------------------------------
[info] Messages : 1,000,000
[info] Threads : 10
[info] Queue : 8,192 slots
[info] Queue memory : 8,192 x 272 = 2,176 KB
[info] -------------------------------------------------
[info]
[info] *********************************
[info] Queue Overflow Policy: block
[info] *********************************
[info] Elapsed: 1.70784 secs 585,535/sec
[info] Elapsed: 1.69805 secs 588,910/sec
[info] Elapsed: 1.7026 secs 587,337/sec
[info]
[info] *********************************
[info] Queue Overflow Policy: overrun
[info] *********************************
[info] Elapsed: 0.372816 secs 2,682,285/sec
[info] Elapsed: 0.379758 secs 2,633,255/sec
[info] Elapsed: 0.373532 secs 2,677,147/sec
```
## Documentation
Documentation can be found in the [wiki](https://github.com/gabime/spdlog/wiki/1.-QuickStart) pages.
---
Thanks to [JetBrains](https://www.jetbrains.com/?from=spdlog) for donating product licenses to help develop **spdlog** <a href="https://www.jetbrains.com/?from=spdlog"><img src="logos/jetbrains-variant-4.svg" width="94" align="center" /></a>

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@ -0,0 +1,89 @@
version: 1.0.{build}
image: Visual Studio 2017
environment:
matrix:
- GENERATOR: '"Visual Studio 15 2017 Win64"'
BUILD_TYPE: Debug
BUILD_SHARED: 'OFF'
FATAL_ERRORS: 'OFF'
WCHAR: 'ON'
WCHAR_FILES: 'OFF'
BUILD_EXAMPLE: 'ON'
USE_STD_FORMAT: 'OFF'
CXX_STANDARD: 11
- GENERATOR: '"Visual Studio 15 2017 Win64"'
BUILD_TYPE: Release
BUILD_SHARED: 'OFF'
FATAL_ERRORS: 'OFF'
WCHAR: 'OFF'
WCHAR_FILES: 'OFF'
BUILD_EXAMPLE: 'ON'
USE_STD_FORMAT: 'OFF'
CXX_STANDARD: 11
- GENERATOR: '"Visual Studio 15 2017 Win64"'
BUILD_TYPE: Release
BUILD_SHARED: 'ON'
FATAL_ERRORS: 'OFF'
WCHAR: 'OFF'
WCHAR_FILES: 'OFF'
BUILD_EXAMPLE: 'ON'
USE_STD_FORMAT: 'OFF'
CXX_STANDARD: 11
- GENERATOR: '"Visual Studio 15 2017 Win64"'
BUILD_TYPE: Release
BUILD_SHARED: 'ON'
FATAL_ERRORS: 'OFF'
WCHAR: 'ON'
WCHAR_FILES: 'ON'
BUILD_EXAMPLE: 'OFF'
USE_STD_FORMAT: 'OFF'
CXX_STANDARD: 11
- GENERATOR: '"Visual Studio 16 2019" -A x64'
BUILD_TYPE: Release
BUILD_SHARED: 'ON'
FATAL_ERRORS: 'ON'
WCHAR: 'OFF'
WCHAR_FILES: 'OFF'
BUILD_EXAMPLE: 'OFF'
USE_STD_FORMAT: 'OFF'
CXX_STANDARD: 17
APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2019
- GENERATOR: '"Visual Studio 17 2022" -A x64'
BUILD_TYPE: Release
BUILD_SHARED: 'ON'
FATAL_ERRORS: 'ON'
WCHAR: 'OFF'
WCHAR_FILES: 'OFF'
BUILD_EXAMPLE: 'OFF'
USE_STD_FORMAT: 'ON'
CXX_STANDARD: 20
APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2022
- GENERATOR: '"Visual Studio 17 2022" -A x64'
BUILD_TYPE: Release
BUILD_SHARED: 'ON'
FATAL_ERRORS: 'ON'
WCHAR: 'ON'
WCHAR_FILES: 'ON'
BUILD_EXAMPLE: 'OFF'
USE_STD_FORMAT: 'ON'
CXX_STANDARD: 20
APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2022
build_script:
- cmd: >-
set
mkdir build
cd build
set PATH=%PATH%;C:\Program Files\Git\usr\bin
cmake -G %GENERATOR% -D CMAKE_BUILD_TYPE=%BUILD_TYPE% -D BUILD_SHARED_LIBS=%BUILD_SHARED% -D SPDLOG_WCHAR_SUPPORT=%WCHAR% -D SPDLOG_WCHAR_FILENAMES=%WCHAR_FILES% -D SPDLOG_BUILD_EXAMPLE=%BUILD_EXAMPLE% -D SPDLOG_BUILD_EXAMPLE_HO=%BUILD_EXAMPLE% -D SPDLOG_BUILD_TESTS=ON -D SPDLOG_BUILD_TESTS_HO=OFF -D SPDLOG_BUILD_WARNINGS=%FATAL_ERRORS% -D SPDLOG_USE_STD_FORMAT=%USE_STD_FORMAT% -D CMAKE_CXX_STANDARD=%CXX_STANDARD% ..
cmake --build . --config %BUILD_TYPE%
before_test:
- set PATH=%PATH%;C:\projects\spdlog\build\_deps\catch2-build\src\%BUILD_TYPE%;C:\projects\spdlog\build\%BUILD_TYPE%
test_script:
- C:\projects\spdlog\build\tests\%BUILD_TYPE%\spdlog-utests.exe

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# Copyright(c) 2019 spdlog authors Distributed under the MIT License (http://opensource.org/licenses/MIT)
cmake_minimum_required(VERSION 3.11)
project(spdlog_bench CXX)
if(NOT TARGET spdlog)
# Stand-alone build
find_package(spdlog CONFIG REQUIRED)
endif()
find_package(Threads REQUIRED)
find_package(benchmark CONFIG)
if(NOT benchmark_FOUND)
message(STATUS "Using CMake Version ${CMAKE_VERSION}")
# User can fetch googlebenchmark
message(STATUS "Downloading GoogleBenchmark")
include(FetchContent)
# disable tests
set(BENCHMARK_ENABLE_TESTING OFF CACHE INTERNAL "")
# Do not build and run googlebenchmark tests
FetchContent_Declare(googlebenchmark GIT_REPOSITORY https://github.com/google/benchmark.git GIT_TAG v1.6.0)
FetchContent_MakeAvailable(googlebenchmark)
endif()
add_executable(bench bench.cpp)
spdlog_enable_warnings(bench)
target_link_libraries(bench PRIVATE spdlog::spdlog)
add_executable(async_bench async_bench.cpp)
target_link_libraries(async_bench PRIVATE spdlog::spdlog)
add_executable(latency latency.cpp)
target_link_libraries(latency PRIVATE benchmark::benchmark spdlog::spdlog)
add_executable(formatter-bench formatter-bench.cpp)
target_link_libraries(formatter-bench PRIVATE benchmark::benchmark spdlog::spdlog)

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//
// Copyright(c) 2015 Gabi Melman.
// Distributed under the MIT License (http://opensource.org/licenses/MIT)
//
//
// bench.cpp : spdlog benchmarks
//
#include "spdlog/spdlog.h"
#include "spdlog/async.h"
#include "spdlog/sinks/basic_file_sink.h"
#if defined(SPDLOG_USE_STD_FORMAT)
#include <format>
#elif defined(SPDLOG_FMT_EXTERNAL)
#include <fmt/format.h>
#else
#include "spdlog/fmt/bundled/format.h"
#endif
#include "utils.h"
#include <atomic>
#include <iostream>
#include <memory>
#include <string>
#include <thread>
using namespace std;
using namespace std::chrono;
using namespace spdlog;
using namespace spdlog::sinks;
using namespace utils;
void bench_mt(int howmany, std::shared_ptr<spdlog::logger> log, int thread_count);
#ifdef _MSC_VER
#pragma warning(push)
#pragma warning(disable : 4996) // disable fopen warning under msvc
#endif // _MSC_VER
int count_lines(const char *filename) {
int counter = 0;
auto *infile = fopen(filename, "r");
int ch;
while (EOF != (ch = getc(infile))) {
if ('\n' == ch) counter++;
}
fclose(infile);
return counter;
}
void verify_file(const char *filename, int expected_count) {
spdlog::info("Verifying {} to contain {} line..", filename, expected_count);
auto count = count_lines(filename);
if (count != expected_count) {
spdlog::error("Test failed. {} has {} lines instead of {}", filename, count,
expected_count);
exit(1);
}
spdlog::info("Line count OK ({})\n", count);
}
#ifdef _MSC_VER
#pragma warning(pop)
#endif
int main(int argc, char *argv[]) {
int howmany = 1000000;
int queue_size = std::min(howmany + 2, 8192);
int threads = 10;
int iters = 3;
try {
spdlog::set_pattern("[%^%l%$] %v");
if (argc == 1) {
spdlog::info("Usage: {} <message_count> <threads> <q_size> <iterations>", argv[0]);
return 0;
}
if (argc > 1) howmany = atoi(argv[1]);
if (argc > 2) threads = atoi(argv[2]);
if (argc > 3) {
queue_size = atoi(argv[3]);
if (queue_size > 500000) {
spdlog::error("Max queue size allowed: 500,000");
exit(1);
}
}
if (argc > 4) iters = atoi(argv[4]);
auto slot_size = sizeof(spdlog::details::async_msg);
spdlog::info("-------------------------------------------------");
spdlog::info("Messages : {:L}", howmany);
spdlog::info("Threads : {:L}", threads);
spdlog::info("Queue : {:L} slots", queue_size);
spdlog::info("Queue memory : {:L} x {:L} = {:L} KB ", queue_size, slot_size,
(queue_size * slot_size) / 1024);
spdlog::info("Total iters : {:L}", iters);
spdlog::info("-------------------------------------------------");
const char *filename = "logs/basic_async.log";
spdlog::info("");
spdlog::info("*********************************");
spdlog::info("Queue Overflow Policy: block");
spdlog::info("*********************************");
for (int i = 0; i < iters; i++) {
auto tp = std::make_shared<details::thread_pool>(queue_size, 1);
auto file_sink = std::make_shared<spdlog::sinks::basic_file_sink_mt>(filename, true);
auto logger = std::make_shared<async_logger>(
"async_logger", std::move(file_sink), std::move(tp), async_overflow_policy::block);
bench_mt(howmany, std::move(logger), threads);
// verify_file(filename, howmany);
}
spdlog::info("");
spdlog::info("*********************************");
spdlog::info("Queue Overflow Policy: overrun");
spdlog::info("*********************************");
// do same test but discard oldest if queue is full instead of blocking
filename = "logs/basic_async-overrun.log";
for (int i = 0; i < iters; i++) {
auto tp = std::make_shared<details::thread_pool>(queue_size, 1);
auto file_sink = std::make_shared<spdlog::sinks::basic_file_sink_mt>(filename, true);
auto logger =
std::make_shared<async_logger>("async_logger", std::move(file_sink), std::move(tp),
async_overflow_policy::overrun_oldest);
bench_mt(howmany, std::move(logger), threads);
}
spdlog::shutdown();
} catch (std::exception &ex) {
std::cerr << "Error: " << ex.what() << std::endl;
perror("Last error");
return 1;
}
return 0;
}
void thread_fun(std::shared_ptr<spdlog::logger> logger, int howmany) {
for (int i = 0; i < howmany; i++) {
logger->info("Hello logger: msg number {}", i);
}
}
void bench_mt(int howmany, std::shared_ptr<spdlog::logger> logger, int thread_count) {
using std::chrono::high_resolution_clock;
vector<std::thread> threads;
auto start = high_resolution_clock::now();
int msgs_per_thread = howmany / thread_count;
int msgs_per_thread_mod = howmany % thread_count;
for (int t = 0; t < thread_count; ++t) {
if (t == 0 && msgs_per_thread_mod)
threads.push_back(
std::thread(thread_fun, logger, msgs_per_thread + msgs_per_thread_mod));
else
threads.push_back(std::thread(thread_fun, logger, msgs_per_thread));
}
for (auto &t : threads) {
t.join();
};
auto delta = high_resolution_clock::now() - start;
auto delta_d = duration_cast<duration<double>>(delta).count();
spdlog::info("Elapsed: {} secs\t {:L}/sec", delta_d, int(howmany / delta_d));
}

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//
// Copyright(c) 2015 Gabi Melman.
// Distributed under the MIT License (http://opensource.org/licenses/MIT)
//
//
// bench.cpp : spdlog benchmarks
//
#include "spdlog/spdlog.h"
#include "spdlog/sinks/basic_file_sink.h"
#include "spdlog/sinks/daily_file_sink.h"
#include "spdlog/sinks/null_sink.h"
#include "spdlog/sinks/rotating_file_sink.h"
#if defined(SPDLOG_USE_STD_FORMAT)
#include <format>
#elif defined(SPDLOG_FMT_EXTERNAL)
#include <fmt/format.h>
#else
#include "spdlog/fmt/bundled/format.h"
#endif
#include "utils.h"
#include <atomic>
#include <cstdlib> // EXIT_FAILURE
#include <memory>
#include <string>
#include <thread>
void bench(int howmany, std::shared_ptr<spdlog::logger> log);
void bench_mt(int howmany, std::shared_ptr<spdlog::logger> log, size_t thread_count);
// void bench_default_api(int howmany, std::shared_ptr<spdlog::logger> log);
// void bench_c_string(int howmany, std::shared_ptr<spdlog::logger> log);
static const size_t file_size = 30 * 1024 * 1024;
static const size_t rotating_files = 5;
static const int max_threads = 1000;
void bench_threaded_logging(size_t threads, int iters) {
spdlog::info("**************************************************************");
spdlog::info(spdlog::fmt_lib::format(
std::locale("en_US.UTF-8"), "Multi threaded: {:L} threads, {:L} messages", threads, iters));
spdlog::info("**************************************************************");
auto basic_mt = spdlog::basic_logger_mt("basic_mt", "logs/basic_mt.log", true);
bench_mt(iters, std::move(basic_mt), threads);
auto basic_mt_tracing =
spdlog::basic_logger_mt("basic_mt/backtrace-on", "logs/basic_mt.log", true);
basic_mt_tracing->enable_backtrace(32);
bench_mt(iters, std::move(basic_mt_tracing), threads);
spdlog::info("");
auto rotating_mt = spdlog::rotating_logger_mt("rotating_mt", "logs/rotating_mt.log", file_size,
rotating_files);
bench_mt(iters, std::move(rotating_mt), threads);
auto rotating_mt_tracing = spdlog::rotating_logger_mt(
"rotating_mt/backtrace-on", "logs/rotating_mt.log", file_size, rotating_files);
rotating_mt_tracing->enable_backtrace(32);
bench_mt(iters, std::move(rotating_mt_tracing), threads);
spdlog::info("");
auto daily_mt = spdlog::daily_logger_mt("daily_mt", "logs/daily_mt.log");
bench_mt(iters, std::move(daily_mt), threads);
auto daily_mt_tracing = spdlog::daily_logger_mt("daily_mt/backtrace-on", "logs/daily_mt.log");
daily_mt_tracing->enable_backtrace(32);
bench_mt(iters, std::move(daily_mt_tracing), threads);
spdlog::info("");
auto empty_logger = std::make_shared<spdlog::logger>("level-off");
empty_logger->set_level(spdlog::level::off);
bench(iters, empty_logger);
auto empty_logger_tracing = std::make_shared<spdlog::logger>("level-off/backtrace-on");
empty_logger_tracing->set_level(spdlog::level::off);
empty_logger_tracing->enable_backtrace(32);
bench(iters, empty_logger_tracing);
}
void bench_single_threaded(int iters) {
spdlog::info("**************************************************************");
spdlog::info(
spdlog::fmt_lib::format(std::locale("en_US.UTF-8"), "Single threaded: {} messages", iters));
spdlog::info("**************************************************************");
auto basic_st = spdlog::basic_logger_st("basic_st", "logs/basic_st.log", true);
bench(iters, std::move(basic_st));
auto basic_st_tracing =
spdlog::basic_logger_st("basic_st/backtrace-on", "logs/basic_st.log", true);
bench(iters, std::move(basic_st_tracing));
spdlog::info("");
auto rotating_st = spdlog::rotating_logger_st("rotating_st", "logs/rotating_st.log", file_size,
rotating_files);
bench(iters, std::move(rotating_st));
auto rotating_st_tracing = spdlog::rotating_logger_st(
"rotating_st/backtrace-on", "logs/rotating_st.log", file_size, rotating_files);
rotating_st_tracing->enable_backtrace(32);
bench(iters, std::move(rotating_st_tracing));
spdlog::info("");
auto daily_st = spdlog::daily_logger_st("daily_st", "logs/daily_st.log");
bench(iters, std::move(daily_st));
auto daily_st_tracing = spdlog::daily_logger_st("daily_st/backtrace-on", "logs/daily_st.log");
daily_st_tracing->enable_backtrace(32);
bench(iters, std::move(daily_st_tracing));
spdlog::info("");
auto empty_logger = std::make_shared<spdlog::logger>("level-off");
empty_logger->set_level(spdlog::level::off);
bench(iters, empty_logger);
auto empty_logger_tracing = std::make_shared<spdlog::logger>("level-off/backtrace-on");
empty_logger_tracing->set_level(spdlog::level::off);
empty_logger_tracing->enable_backtrace(32);
bench(iters, empty_logger_tracing);
}
int main(int argc, char *argv[]) {
spdlog::set_automatic_registration(false);
spdlog::default_logger()->set_pattern("[%^%l%$] %v");
int iters = 250000;
size_t threads = 4;
try {
if (argc > 1) {
iters = std::stoi(argv[1]);
}
if (argc > 2) {
threads = std::stoul(argv[2]);
}
if (threads > max_threads) {
throw std::runtime_error(
spdlog::fmt_lib::format("Number of threads exceeds maximum({})", max_threads));
}
bench_single_threaded(iters);
bench_threaded_logging(1, iters);
bench_threaded_logging(threads, iters);
} catch (std::exception &ex) {
spdlog::error(ex.what());
return EXIT_FAILURE;
}
return EXIT_SUCCESS;
}
void bench(int howmany, std::shared_ptr<spdlog::logger> log) {
using std::chrono::duration;
using std::chrono::duration_cast;
using std::chrono::high_resolution_clock;
auto start = high_resolution_clock::now();
for (auto i = 0; i < howmany; ++i) {
log->info("Hello logger: msg number {}", i);
}
auto delta = high_resolution_clock::now() - start;
auto delta_d = duration_cast<duration<double>>(delta).count();
spdlog::info(spdlog::fmt_lib::format(std::locale("en_US.UTF-8"),
"{:<30} Elapsed: {:0.2f} secs {:>16L}/sec", log->name(),
delta_d, size_t(howmany / delta_d)));
spdlog::drop(log->name());
}
void bench_mt(int howmany, std::shared_ptr<spdlog::logger> log, size_t thread_count) {
using std::chrono::duration;
using std::chrono::duration_cast;
using std::chrono::high_resolution_clock;
std::vector<std::thread> threads;
threads.reserve(thread_count);
auto start = high_resolution_clock::now();
for (size_t t = 0; t < thread_count; ++t) {
threads.emplace_back([&]() {
for (int j = 0; j < howmany / static_cast<int>(thread_count); j++) {
log->info("Hello logger: msg number {}", j);
}
});
}
for (auto &t : threads) {
t.join();
};
auto delta = high_resolution_clock::now() - start;
auto delta_d = duration_cast<duration<double>>(delta).count();
spdlog::info(spdlog::fmt_lib::format(std::locale("en_US.UTF-8"),
"{:<30} Elapsed: {:0.2f} secs {:>16L}/sec", log->name(),
delta_d, size_t(howmany / delta_d)));
spdlog::drop(log->name());
}
/*
void bench_default_api(int howmany, std::shared_ptr<spdlog::logger> log)
{
using std::chrono::high_resolution_clock;
using std::chrono::duration;
using std::chrono::duration_cast;
auto orig_default = spdlog::default_logger();
spdlog::set_default_logger(log);
auto start = high_resolution_clock::now();
for (auto i = 0; i < howmany; ++i)
{
spdlog::info("Hello logger: msg number {}", i);
}
auto delta = high_resolution_clock::now() - start;
auto delta_d = duration_cast<duration<double>>(delta).count();
spdlog::drop(log->name());
spdlog::set_default_logger(std::move(orig_default));
spdlog::info("{:<30} Elapsed: {:0.2f} secs {:>16}/sec", log->name(), delta_d, int(howmany /
delta_d));
}
void bench_c_string(int howmany, std::shared_ptr<spdlog::logger> log)
{
using std::chrono::high_resolution_clock;
using std::chrono::duration;
using std::chrono::duration_cast;
const char *msg = "Lorem ipsum dolor sit amet, consectetur adipiscing elit. Vestibulum pharetra
metus cursus " "lacus placerat congue. Nulla egestas, mauris a tincidunt tempus, enim lectus
volutpat mi, eu consequat sem " "libero nec massa. In dapibus ipsum a diam rhoncus gravida. Etiam
non dapibus eros. Donec fringilla dui sed " "augue pretium, nec scelerisque est maximus. Nullam
convallis, sem nec blandit maximus, nisi turpis ornare " "nisl, sit amet volutpat neque massa eu
odio. Maecenas malesuada quam ex, posuere congue nibh turpis duis.";
auto orig_default = spdlog::default_logger();
spdlog::set_default_logger(log);
auto start = high_resolution_clock::now();
for (auto i = 0; i < howmany; ++i)
{
spdlog::log(spdlog::level::info, msg);
}
auto delta = high_resolution_clock::now() - start;
auto delta_d = duration_cast<duration<double>>(delta).count();
spdlog::drop(log->name());
spdlog::set_default_logger(std::move(orig_default));
spdlog::info("{:<30} Elapsed: {:0.2f} secs {:>16}/sec", log->name(), delta_d, int(howmany /
delta_d));
}
*/

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//
// Copyright(c) 2018 Gabi Melman.
// Distributed under the MIT License (http://opensource.org/licenses/MIT)
//
#include "benchmark/benchmark.h"
#include "spdlog/spdlog.h"
#include "spdlog/pattern_formatter.h"
void bench_formatter(benchmark::State &state, std::string pattern) {
auto formatter = spdlog::details::make_unique<spdlog::pattern_formatter>(pattern);
spdlog::memory_buf_t dest;
std::string logger_name = "logger-name";
const char *text =
"Hello. This is some message with length of 80 ";
spdlog::source_loc source_loc{"a/b/c/d/myfile.cpp", 123, "some_func()"};
spdlog::details::log_msg msg(source_loc, logger_name, spdlog::level::info, text);
for (auto _ : state) {
dest.clear();
formatter->format(msg, dest);
benchmark::DoNotOptimize(dest);
}
}
void bench_formatters() {
// basic patterns(single flag)
std::string all_flags = "+vtPnlLaAbBcCYDmdHIMSefFprRTXzEisg@luioO%";
std::vector<std::string> basic_patterns;
for (auto &flag : all_flags) {
auto pattern = std::string("%") + flag;
benchmark::RegisterBenchmark(pattern.c_str(), &bench_formatter, pattern);
// pattern = std::string("%16") + flag;
// benchmark::RegisterBenchmark(pattern.c_str(), &bench_formatter, pattern);
//
// // bench center padding
// pattern = std::string("%=16") + flag;
// benchmark::RegisterBenchmark(pattern.c_str(), &bench_formatter, pattern);
}
// complex patterns
std::vector<std::string> patterns = {
"[%D %X] [%l] [%n] %v",
"[%Y-%m-%d %H:%M:%S.%e] [%l] [%n] %v",
"[%Y-%m-%d %H:%M:%S.%e] [%l] [%n] [%t] %v",
};
for (auto &pattern : patterns) {
benchmark::RegisterBenchmark(pattern.c_str(), &bench_formatter, pattern)
->Iterations(2500000);
}
}
int main(int argc, char *argv[]) {
spdlog::set_pattern("[%^%l%$] %v");
if (argc != 2) {
spdlog::error("Usage: {} <pattern> (or \"all\" to bench all)", argv[0]);
exit(1);
}
std::string pattern = argv[1];
if (pattern == "all") {
bench_formatters();
} else {
benchmark::RegisterBenchmark(pattern.c_str(), &bench_formatter, pattern);
}
benchmark::Initialize(&argc, argv);
benchmark::RunSpecifiedBenchmarks();
}

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//
// Copyright(c) 2018 Gabi Melman.
// Distributed under the MIT License (http://opensource.org/licenses/MIT)
//
//
// latency.cpp : spdlog latency benchmarks
//
#include "benchmark/benchmark.h"
#include "spdlog/spdlog.h"
#include "spdlog/async.h"
#include "spdlog/sinks/basic_file_sink.h"
#include "spdlog/sinks/daily_file_sink.h"
#include "spdlog/sinks/null_sink.h"
#include "spdlog/sinks/rotating_file_sink.h"
void bench_c_string(benchmark::State &state, std::shared_ptr<spdlog::logger> logger) {
const char *msg =
"Lorem ipsum dolor sit amet, consectetur adipiscing elit. Vestibulum pharetra metus cursus "
"lacus placerat congue. Nulla egestas, mauris a tincidunt tempus, enim lectus volutpat mi, "
"eu consequat sem "
"libero nec massa. In dapibus ipsum a diam rhoncus gravida. Etiam non dapibus eros. Donec "
"fringilla dui sed "
"augue pretium, nec scelerisque est maximus. Nullam convallis, sem nec blandit maximus, "
"nisi turpis ornare "
"nisl, sit amet volutpat neque massa eu odio. Maecenas malesuada quam ex, posuere congue "
"nibh turpis duis.";
for (auto _ : state) {
logger->info(msg);
}
}
void bench_logger(benchmark::State &state, std::shared_ptr<spdlog::logger> logger) {
int i = 0;
for (auto _ : state) {
logger->info("Hello logger: msg number {}...............", ++i);
}
}
void bench_global_logger(benchmark::State &state, std::shared_ptr<spdlog::logger> logger) {
spdlog::set_default_logger(std::move(logger));
int i = 0;
for (auto _ : state) {
spdlog::info("Hello logger: msg number {}...............", ++i);
}
}
void bench_disabled_macro(benchmark::State &state, std::shared_ptr<spdlog::logger> logger) {
int i = 0;
benchmark::DoNotOptimize(i); // prevent unused warnings
benchmark::DoNotOptimize(logger); // prevent unused warnings
for (auto _ : state) {
SPDLOG_LOGGER_DEBUG(logger, "Hello logger: msg number {}...............", i++);
}
}
void bench_disabled_macro_global_logger(benchmark::State &state,
std::shared_ptr<spdlog::logger> logger) {
spdlog::set_default_logger(std::move(logger));
int i = 0;
benchmark::DoNotOptimize(i); // prevent unused warnings
benchmark::DoNotOptimize(logger); // prevent unused warnings
for (auto _ : state) {
SPDLOG_DEBUG("Hello logger: msg number {}...............", i++);
}
}
#ifdef __linux__
void bench_dev_null() {
auto dev_null_st = spdlog::basic_logger_st("/dev/null_st", "/dev/null");
benchmark::RegisterBenchmark("/dev/null_st", bench_logger, std::move(dev_null_st))
->UseRealTime();
spdlog::drop("/dev/null_st");
auto dev_null_mt = spdlog::basic_logger_mt("/dev/null_mt", "/dev/null");
benchmark::RegisterBenchmark("/dev/null_mt", bench_logger, std::move(dev_null_mt))
->UseRealTime();
spdlog::drop("/dev/null_mt");
}
#endif // __linux__
int main(int argc, char *argv[]) {
using spdlog::sinks::null_sink_mt;
using spdlog::sinks::null_sink_st;
size_t file_size = 30 * 1024 * 1024;
size_t rotating_files = 5;
int n_threads = benchmark::CPUInfo::Get().num_cpus;
auto full_bench = argc > 1 && std::string(argv[1]) == "full";
// disabled loggers
auto disabled_logger =
std::make_shared<spdlog::logger>("bench", std::make_shared<null_sink_mt>());
disabled_logger->set_level(spdlog::level::off);
benchmark::RegisterBenchmark("disabled-at-compile-time", bench_disabled_macro, disabled_logger);
benchmark::RegisterBenchmark("disabled-at-compile-time (global logger)",
bench_disabled_macro_global_logger, disabled_logger);
benchmark::RegisterBenchmark("disabled-at-runtime", bench_logger, disabled_logger);
benchmark::RegisterBenchmark("disabled-at-runtime (global logger)", bench_global_logger,
disabled_logger);
// with backtrace of 64
auto tracing_disabled_logger =
std::make_shared<spdlog::logger>("bench", std::make_shared<null_sink_mt>());
tracing_disabled_logger->enable_backtrace(64);
benchmark::RegisterBenchmark("disabled-at-runtime/backtrace", bench_logger,
tracing_disabled_logger);
auto null_logger_st =
std::make_shared<spdlog::logger>("bench", std::make_shared<null_sink_st>());
benchmark::RegisterBenchmark("null_sink_st (500_bytes c_str)", bench_c_string,
std::move(null_logger_st));
benchmark::RegisterBenchmark("null_sink_st", bench_logger, null_logger_st);
benchmark::RegisterBenchmark("null_sink_st (global logger)", bench_global_logger,
null_logger_st);
// with backtrace of 64
auto tracing_null_logger_st =
std::make_shared<spdlog::logger>("bench", std::make_shared<null_sink_st>());
tracing_null_logger_st->enable_backtrace(64);
benchmark::RegisterBenchmark("null_sink_st/backtrace", bench_logger, tracing_null_logger_st);
#ifdef __linux__
bench_dev_null();
#endif // __linux__
if (full_bench) {
// basic_st
auto basic_st = spdlog::basic_logger_st("basic_st", "latency_logs/basic_st.log", true);
benchmark::RegisterBenchmark("basic_st", bench_logger, std::move(basic_st))->UseRealTime();
spdlog::drop("basic_st");
// with backtrace of 64
auto tracing_basic_st =
spdlog::basic_logger_st("tracing_basic_st", "latency_logs/tracing_basic_st.log", true);
tracing_basic_st->enable_backtrace(64);
benchmark::RegisterBenchmark("basic_st/backtrace", bench_logger,
std::move(tracing_basic_st))
->UseRealTime();
spdlog::drop("tracing_basic_st");
// rotating st
auto rotating_st = spdlog::rotating_logger_st("rotating_st", "latency_logs/rotating_st.log",
file_size, rotating_files);
benchmark::RegisterBenchmark("rotating_st", bench_logger, std::move(rotating_st))
->UseRealTime();
spdlog::drop("rotating_st");
// with backtrace of 64
auto tracing_rotating_st = spdlog::rotating_logger_st(
"tracing_rotating_st", "latency_logs/tracing_rotating_st.log", file_size,
rotating_files);
benchmark::RegisterBenchmark("rotating_st/backtrace", bench_logger,
std::move(tracing_rotating_st))
->UseRealTime();
spdlog::drop("tracing_rotating_st");
// daily st
auto daily_st = spdlog::daily_logger_mt("daily_st", "latency_logs/daily_st.log");
benchmark::RegisterBenchmark("daily_st", bench_logger, std::move(daily_st))->UseRealTime();
spdlog::drop("daily_st");
auto tracing_daily_st =
spdlog::daily_logger_mt("tracing_daily_st", "latency_logs/daily_st.log");
benchmark::RegisterBenchmark("daily_st/backtrace", bench_logger,
std::move(tracing_daily_st))
->UseRealTime();
spdlog::drop("tracing_daily_st");
//
// Multi threaded bench, 10 loggers using same logger concurrently
//
auto null_logger_mt =
std::make_shared<spdlog::logger>("bench", std::make_shared<null_sink_mt>());
benchmark::RegisterBenchmark("null_sink_mt", bench_logger, null_logger_mt)
->Threads(n_threads)
->UseRealTime();
// basic_mt
auto basic_mt = spdlog::basic_logger_mt("basic_mt", "latency_logs/basic_mt.log", true);
benchmark::RegisterBenchmark("basic_mt", bench_logger, std::move(basic_mt))
->Threads(n_threads)
->UseRealTime();
spdlog::drop("basic_mt");
// rotating mt
auto rotating_mt = spdlog::rotating_logger_mt("rotating_mt", "latency_logs/rotating_mt.log",
file_size, rotating_files);
benchmark::RegisterBenchmark("rotating_mt", bench_logger, std::move(rotating_mt))
->Threads(n_threads)
->UseRealTime();
spdlog::drop("rotating_mt");
// daily mt
auto daily_mt = spdlog::daily_logger_mt("daily_mt", "latency_logs/daily_mt.log");
benchmark::RegisterBenchmark("daily_mt", bench_logger, std::move(daily_mt))
->Threads(n_threads)
->UseRealTime();
spdlog::drop("daily_mt");
}
// async
auto queue_size = 1024 * 1024 * 3;
auto tp = std::make_shared<spdlog::details::thread_pool>(queue_size, 1);
auto async_logger = std::make_shared<spdlog::async_logger>(
"async_logger", std::make_shared<null_sink_mt>(), std::move(tp),
spdlog::async_overflow_policy::overrun_oldest);
benchmark::RegisterBenchmark("async_logger", bench_logger, async_logger)
->Threads(n_threads)
->UseRealTime();
auto async_logger_tracing = std::make_shared<spdlog::async_logger>(
"async_logger_tracing", std::make_shared<null_sink_mt>(), std::move(tp),
spdlog::async_overflow_policy::overrun_oldest);
async_logger_tracing->enable_backtrace(32);
benchmark::RegisterBenchmark("async_logger/tracing", bench_logger, async_logger_tracing)
->Threads(n_threads)
->UseRealTime();
benchmark::Initialize(&argc, argv);
benchmark::RunSpecifiedBenchmarks();
}

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//
// Copyright(c) 2015 Gabi Melman.
// Distributed under the MIT License (http://opensource.org/licenses/MIT)
//
#pragma once
#include <iomanip>
#include <locale>
#include <sstream>
namespace utils {
template <typename T>
inline std::string format(const T &value) {
static std::locale loc("");
std::stringstream ss;
ss.imbue(loc);
ss << value;
return ss.str();
}
template <>
inline std::string format(const double &value) {
static std::locale loc("");
std::stringstream ss;
ss.imbue(loc);
ss << std::fixed << std::setprecision(1) << value;
return ss.str();
}
} // namespace utils

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# ---------------------------------------------------------------------------------------
# IDE support for headers
# ---------------------------------------------------------------------------------------
set(SPDLOG_HEADERS_DIR "${CMAKE_CURRENT_LIST_DIR}/../include")
file(GLOB SPDLOG_TOP_HEADERS "${SPDLOG_HEADERS_DIR}/spdlog/*.h")
file(GLOB SPDLOG_DETAILS_HEADERS "${SPDLOG_HEADERS_DIR}/spdlog/details/*.h")
file(GLOB SPDLOG_SINKS_HEADERS "${SPDLOG_HEADERS_DIR}/spdlog/sinks/*.h")
file(GLOB SPDLOG_FMT_HEADERS "${SPDLOG_HEADERS_DIR}/spdlog/fmt/*.h")
file(GLOB SPDLOG_FMT_BUNDELED_HEADERS "${SPDLOG_HEADERS_DIR}/spdlog/fmt/bundled/*.h")
set(SPDLOG_ALL_HEADERS ${SPDLOG_TOP_HEADERS} ${SPDLOG_DETAILS_HEADERS} ${SPDLOG_SINKS_HEADERS} ${SPDLOG_FMT_HEADERS}
${SPDLOG_FMT_BUNDELED_HEADERS})
source_group("Header Files\\spdlog" FILES ${SPDLOG_TOP_HEADERS})
source_group("Header Files\\spdlog\\details" FILES ${SPDLOG_DETAILS_HEADERS})
source_group("Header Files\\spdlog\\sinks" FILES ${SPDLOG_SINKS_HEADERS})
source_group("Header Files\\spdlog\\fmt" FILES ${SPDLOG_FMT_HEADERS})
source_group("Header Files\\spdlog\\fmt\\bundled\\" FILES ${SPDLOG_FMT_BUNDELED_HEADERS})

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// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
// Distributed under the MIT License (http://opensource.org/licenses/MIT)
#pragma once
// details/pattern_formatter-inl.h
// fmt/bin_to_hex.h
// fmt/bundled/format-inl.h
#include <cctype>
// details/file_helper-inl.h
// details/os-inl.h
// fmt/bundled/core.h
// fmt/bundled/posix.h
// logger-inl.h
// sinks/daily_file_sink.h
// sinks/stdout_sinks.h
#include <cstdio>
// details/os-inl.h
// fmt/bundled/posix.h
#include <cstdlib>
// details/os-inl.h
// details/pattern_formatter-inl.h
// fmt/bundled/core.h
// fmt/bundled/format-inl.h
#include <cstring>
// details/os-inl.h
// details/os.h
// details/pattern_formatter-inl.h
// details/pattern_formatter.h
// fmt/bundled/chrono.h
// sinks/daily_file_sink.h
// sinks/rotating_file_sink-inl.h
#include <ctime>
// fmt/bundled/format-inl.h
#include <climits>
// fmt/bundled/format-inl.h
#include <cwchar>
// fmt/bundled/format-inl.h
// fmt/bundled/format.h
#include <cmath>
// fmt/bundled/format-inl.h
#include <cstdarg>
// details/file_helper-inl.h
// fmt/bundled/format.h
// fmt/bundled/posix.h
// sinks/rotating_file_sink-inl.h
#include <cerrno>
// details/circular_q.h
// details/thread_pool-inl.h
// fmt/bundled/format-inl.h
#include <cassert>
// async_logger-inl.h
// cfg/helpers-inl.h
// log_levels.h
// common.h
// details/file_helper-inl.h
// details/log_msg.h
// details/os-inl.h
// details/pattern_formatter-inl.h
// details/pattern_formatter.h
// details/registry-inl.h
// details/registry.h
// details/tcp_client-windows.h
// details/tcp_client.h
// fmt/bundled/core.h
// sinks/android_sink.h
// sinks/ansicolor_sink.h
// sinks/basic_file_sink.h
// sinks/daily_file_sink.h
// sinks/dup_filter_sink.h
// sinks/msvc_sink.h
// sinks/ringbuffer_sink.h
// sinks/rotating_file_sink-inl.h
// sinks/rotating_file_sink.h
// sinks/syslog_sink.h
// sinks/tcp_sink.h
// sinks/win_eventlog_sink.h
// sinks/wincolor_sink.h
// spdlog.h:
#include <string>
// cfg/helpers-inl.h
// fmt/bundled/chrono.h
#include <sstream>
// fmt/bundled/ostream.h
// sinks/ostream_sink.h
#include <ostream>
// cfg/log_levels.h
// details/registry-inl.h
// details/registry.h
#include <unordered_map>
// details/circular_q.h
// details/pattern_formatter-inl.h
// details/pattern_formatter.h
// details/thread_pool.h
// fmt/bundled/compile.h
// logger.h
// sinks/dist_sink.h
// sinks/ringbuffer_sink.h
// sinks/win_eventlog_sink.h
#include <vector>
// details/os-inl.h
// details/pattern_formatter-inl.h
// sinks/ansicolor_sink.h
// sinks/syslog_sink.h
// sinks/systemd_sink.h
// sinks/wincolor_sink.h
#include <array>
// details/file_helper-inl.h
// details/file_helper.h
// sinks/rotating_file_sink-inl.h
#include <tuple>
// details/os-inl.h
// fmt/bundled/format.h
// fmt/bundled/printf.h
#include <limits>
// common.h
// details/backtracer.h
// details/null_mutex.h
#include <atomic>
// common.h
// details/backtracer.h
// details/null_mutex.h
#include <locale>
// common.h
#include <initializer_list>
// common.h
#include <exception>
// common.h
// details/fmt_helper.h
// fmt/bundled/core.h
// fmt/bundled/ranges.h
#include <type_traits>
// cfg/helpers-inl.h
// details/null_mutex.h
// details/pattern_formatter-inl.h
#include <utility>
// async.h
// async_logger-inl.h
// common.h
// details/pattern_formatter-inl.h
// details/pattern_formatter.h
// details/registry-inl.h
// details/registry.h
// details/thread_pool.h
// fmt/bundled/format.h
// sinks/ansicolor_sink.h
// sinks/base_sink-inl.h
// sinks/dist_sink.h
// sinks/stdout_sinks-inl.h
// sinks/wincolor_sink.h
// spdlog.h
#include <memory>
// async.h
// common.h
// details/backtracer.h
// details/periodic_worker.h
// details/registry-inl.h
// details/registry.h
// details/thread_pool.h
// sinks/tcp_sink.h
// spdlog.h
#include <functional>
// details/mpmc_blocking_q.h
// details/periodic_worker.h
#include <condition_variable>
// details/os-inl.h
// fmt/bundled/format.h
// fmt/bundled/printf.h
// sinks/dist_sink.h
#include <algorithm>
// common.h
// details/file_helper-inl.h
// details/fmt_helper.h
// details/os-inl.h
// details/pattern_formatter-inl.h
// details/pattern_formatter.h
// details/periodic_worker.h
// details/registry-inl.h
// details/registry.h
// details/thread_pool.h
// fmt/bundled/chrono.h
// sinks/android_sink.h
// sinks/daily_file_sink.h
// sinks/dup_filter_sink.h
// sinks/rotating_file_sink-inl.h
// sinks/rotating_file_sink.h
// sinks/tcp_sink.h
// spdlog.h
#include <chrono>
// details/file_helper-inl.h
// details/os-inl.h
// details/pattern_formatter-inl.h
// details/periodic_worker.h
// details/thread_pool.h
// sinks/android_sink.h
#include <thread>
// async.h
// details/backtracer.h
// details/console_globals.h
// details/mpmc_blocking_q.h
// details/pattern_formatter-inl.h
// details/periodic_worker.h
// details/registry.h
// sinks/android_sink.h
// sinks/ansicolor_sink.h
// sinks/basic_file_sink.h
// sinks/daily_file_sink.h
// sinks/dist_sink.h
// sinks/dup_filter_sink.h
// sinks/msvc_sink.h
// sinks/null_sink.h
// sinks/ostream_sink.h
// sinks/ringbuffer_sink.h
// sinks/rotating_file_sink-inl.h
// sinks/rotating_file_sink.h
// sinks/tcp_sink.h
// sinks/win_eventlog_sink.h
// sinks/wincolor_sink.h
//
// color_sinks.cpp
// file_sinks.cpp
// spdlog.cpp
// stdout_sinks.cpp
#include <mutex>
// spdlog
#include <spdlog/common.h>

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prefix=@CMAKE_INSTALL_PREFIX@
exec_prefix=${prefix}
includedir=@PKG_CONFIG_INCLUDEDIR@
libdir=@PKG_CONFIG_LIBDIR@
Name: lib@PROJECT_NAME@
Description: Fast C++ logging library.
URL: https://github.com/gabime/@PROJECT_NAME@
Version: @SPDLOG_VERSION@
CFlags: -I${includedir} @PKG_CONFIG_DEFINES@
Libs: -L${libdir} -lspdlog -pthread
Requires: @PKG_CONFIG_REQUIRES@

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set(CPACK_GENERATOR "TGZ;ZIP" CACHE STRING "Semicolon separated list of generators")
set(CPACK_INCLUDE_TOPLEVEL_DIRECTORY 0)
set(CPACK_INSTALL_CMAKE_PROJECTS "${CMAKE_BINARY_DIR}" "${PROJECT_NAME}" ALL .)
set(CPACK_PROJECT_URL "https://github.com/gabime/spdlog")
set(CPACK_PACKAGE_VENDOR "Gabi Melman")
set(CPACK_PACKAGE_CONTACT "Gabi Melman <gmelman1@gmail.com>")
set(CPACK_PACKAGE_DESCRIPTION_SUMMARY "Fast C++ logging library")
set(CPACK_PACKAGE_VERSION_MAJOR ${PROJECT_VERSION_MAJOR})
set(CPACK_PACKAGE_VERSION_MINOR ${PROJECT_VERSION_MINOR})
set(CPACK_PACKAGE_VERSION_PATCH ${PROJECT_VERSION_PATCH})
set(CPACK_PACKAGE_VERSION ${PROJECT_VERSION_MAJOR}.${PROJECT_VERSION_MINOR}.${PROJECT_VERSION_PATCH})
if(PROJECT_VERSION_TWEAK)
set(CPACK_PACKAGE_VERSION ${CPACK_PACKAGE_VERSION}.${PROJECT_VERSION_TWEAK})
endif()
set(CPACK_PACKAGE_RELOCATABLE ON CACHE BOOL "Build relocatable package")
set(CPACK_RPM_PACKAGE_LICENSE "MIT")
set(CPACK_RPM_PACKAGE_GROUP "Development/Libraries")
set(CPACK_DEBIAN_PACKAGE_SECTION "libs")
set(CPACK_RPM_PACKAGE_URL ${CPACK_PROJECT_URL})
set(CPACK_DEBIAN_PACKAGE_HOMEPAGE ${CPACK_PROJECT_URL})
set(CPACK_RPM_PACKAGE_DESCRIPTION "Very fast, header-only/compiled, C++ logging library.")
set(CPACK_DEBIAN_PACKAGE_DESCRIPTION "Very fast, header-only/compiled, C++ logging library.")
if(CPACK_PACKAGE_NAME)
set(CPACK_RPM_FILE_NAME "${CPACK_PACKAGE_NAME}-${CPACK_PACKAGE_VERSION}")
set(CPACK_DEBIAN_FILE_NAME "${CPACK_PACKAGE_NAME}-${CPACK_PACKAGE_VERSION}")
else()
set(CPACK_RPM_FILE_NAME "${PROJECT_NAME}-${CPACK_PACKAGE_VERSION}")
set(CPACK_DEBIAN_FILE_NAME "${PROJECT_NAME}-${CPACK_PACKAGE_VERSION}")
set(CPACK_RPM_PACKAGE_NAME "${PROJECT_NAME}")
set(CPACK_DEBIAN_PACKAGE_NAME "${PROJECT_NAME}")
endif()
if(CPACK_RPM_PACKAGE_RELEASE)
set(CPACK_RPM_FILE_NAME "${CPACK_RPM_FILE_NAME}-${CPACK_RPM_PACKAGE_RELEASE}")
endif()
if(CPACK_DEBIAN_PACKAGE_RELEASE)
set(CPACK_DEBIAN_FILE_NAME "${CPACK_DEBIAN_FILE_NAME}-${CPACK_DEBIAN_PACKAGE_RELEASE}")
endif()
if(CPACK_RPM_PACKAGE_ARCHITECTURE)
set(CPACK_RPM_FILE_NAME "${CPACK_RPM_FILE_NAME}.${CPACK_RPM_PACKAGE_ARCHITECTURE}")
endif()
if(CPACK_DEBIAN_PACKAGE_ARCHITECTURE)
set(CPACK_DEBIAN_FILE_NAME "${CPACK_DEBIAN_FILE_NAME}.${CPACK_DEBIAN_PACKAGE_ARCHITECTURE}")
endif()
set(CPACK_RPM_FILE_NAME "${CPACK_RPM_FILE_NAME}.rpm")
set(CPACK_DEBIAN_FILE_NAME "${CPACK_DEBIAN_FILE_NAME}.deb")
if(NOT CPACK_PACKAGE_RELOCATABLE)
# Depend on pkgconfig rpm to create the system pkgconfig folder
set(CPACK_RPM_PACKAGE_REQUIRES pkgconfig)
set(CPACK_RPM_EXCLUDE_FROM_AUTO_FILELIST_ADDITION
"${CPACK_PACKAGING_INSTALL_PREFIX}/${CMAKE_INSTALL_LIBDIR}/pkgconfig")
endif()
include(CPack)

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# Copyright(c) 2019 spdlog authors
# Distributed under the MIT License (http://opensource.org/licenses/MIT)
@PACKAGE_INIT@
find_package(Threads REQUIRED)
set(SPDLOG_FMT_EXTERNAL @SPDLOG_FMT_EXTERNAL@)
set(SPDLOG_FMT_EXTERNAL_HO @SPDLOG_FMT_EXTERNAL_HO@)
set(config_targets_file @config_targets_file@)
if(SPDLOG_FMT_EXTERNAL OR SPDLOG_FMT_EXTERNAL_HO)
include(CMakeFindDependencyMacro)
find_dependency(fmt CONFIG)
endif()
include("${CMAKE_CURRENT_LIST_DIR}/${config_targets_file}")
check_required_components(spdlog)

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# Get spdlog version from include/spdlog/version.h and put it in SPDLOG_VERSION
function(spdlog_extract_version)
file(READ "${CMAKE_CURRENT_LIST_DIR}/include/spdlog/version.h" file_contents)
string(REGEX MATCH "SPDLOG_VER_MAJOR ([0-9]+)" _ "${file_contents}")
if(NOT CMAKE_MATCH_COUNT EQUAL 1)
message(FATAL_ERROR "Could not extract major version number from spdlog/version.h")
endif()
set(ver_major ${CMAKE_MATCH_1})
string(REGEX MATCH "SPDLOG_VER_MINOR ([0-9]+)" _ "${file_contents}")
if(NOT CMAKE_MATCH_COUNT EQUAL 1)
message(FATAL_ERROR "Could not extract minor version number from spdlog/version.h")
endif()
set(ver_minor ${CMAKE_MATCH_1})
string(REGEX MATCH "SPDLOG_VER_PATCH ([0-9]+)" _ "${file_contents}")
if(NOT CMAKE_MATCH_COUNT EQUAL 1)
message(FATAL_ERROR "Could not extract patch version number from spdlog/version.h")
endif()
set(ver_patch ${CMAKE_MATCH_1})
set(SPDLOG_VERSION_MAJOR ${ver_major} PARENT_SCOPE)
set(SPDLOG_VERSION_MINOR ${ver_minor} PARENT_SCOPE)
set(SPDLOG_VERSION_PATCH ${ver_patch} PARENT_SCOPE)
set(SPDLOG_VERSION "${ver_major}.${ver_minor}.${ver_patch}" PARENT_SCOPE)
endfunction()
# Turn on warnings on the given target
function(spdlog_enable_warnings target_name)
if(SPDLOG_BUILD_WARNINGS)
if(CMAKE_CXX_COMPILER_ID STREQUAL "MSVC")
list(APPEND MSVC_OPTIONS "/W3")
if(MSVC_VERSION GREATER 1900) # Allow non fatal security warnings for msvc 2015
list(APPEND MSVC_OPTIONS "/WX")
endif()
endif()
target_compile_options(
${target_name}
PRIVATE $<$<OR:$<CXX_COMPILER_ID:Clang>,$<CXX_COMPILER_ID:AppleClang>,$<CXX_COMPILER_ID:GNU>>:
-Wall
-Wextra
-Wconversion
-pedantic
-Werror
-Wfatal-errors>
$<$<CXX_COMPILER_ID:MSVC>:${MSVC_OPTIONS}>)
endif()
endfunction()
# Enable address sanitizer (gcc/clang only)
function(spdlog_enable_sanitizer target_name)
if(NOT CMAKE_CXX_COMPILER_ID MATCHES "GNU|Clang")
message(FATAL_ERROR "Sanitizer supported only for gcc/clang")
endif()
message(STATUS "Address sanitizer enabled")
target_compile_options(${target_name} PRIVATE -fsanitize=address,undefined)
target_compile_options(${target_name} PRIVATE -fno-sanitize=signed-integer-overflow)
target_compile_options(${target_name} PRIVATE -fno-sanitize-recover=all)
target_compile_options(${target_name} PRIVATE -fno-omit-frame-pointer)
target_link_libraries(${target_name} PRIVATE -fsanitize=address,undefined -fuse-ld=gold)
endfunction()

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#define APSTUDIO_READONLY_SYMBOLS
#include <windows.h>
#undef APSTUDIO_READONLY_SYMBOLS
LANGUAGE LANG_ENGLISH, SUBLANG_ENGLISH_US
VS_VERSION_INFO VERSIONINFO
FILEVERSION @SPDLOG_VERSION_MAJOR@,@SPDLOG_VERSION_MINOR@,@SPDLOG_VERSION_PATCH@,0
PRODUCTVERSION @SPDLOG_VERSION_MAJOR@,@SPDLOG_VERSION_MINOR@,@SPDLOG_VERSION_PATCH@,0
FILEFLAGSMASK 0x3fL
#ifdef _DEBUG
FILEFLAGS 0x1L
#else
FILEFLAGS 0x0L
#endif
FILEOS 0x40004L
FILETYPE 0x2L
FILESUBTYPE 0x0L
BEGIN
BLOCK "StringFileInfo"
BEGIN
BLOCK "040904b0"
BEGIN
VALUE "FileDescription", "spdlog dll\0"
VALUE "FileVersion", "@SPDLOG_VERSION@.0\0"
VALUE "InternalName", "spdlog.dll\0"
VALUE "LegalCopyright", "Copyright (C) spdlog\0"
VALUE "ProductName", "spdlog\0"
VALUE "ProductVersion", "@SPDLOG_VERSION@.0\0"
END
END
BLOCK "VarFileInfo"
BEGIN
VALUE "Translation", 0x409, 1200
END
END

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# Copyright(c) 2019 spdlog authors Distributed under the MIT License (http://opensource.org/licenses/MIT)
cmake_minimum_required(VERSION 3.11)
project(spdlog_examples CXX)
if(NOT TARGET spdlog)
# Stand-alone build
find_package(spdlog REQUIRED)
endif()
# ---------------------------------------------------------------------------------------
# Example of using pre-compiled library
# ---------------------------------------------------------------------------------------
add_executable(example example.cpp)
target_link_libraries(example PRIVATE spdlog::spdlog $<$<BOOL:${MINGW}>:ws2_32>)
# ---------------------------------------------------------------------------------------
# Example of using header-only library
# ---------------------------------------------------------------------------------------
if(SPDLOG_BUILD_EXAMPLE_HO)
add_executable(example_header_only example.cpp)
target_link_libraries(example_header_only PRIVATE spdlog::spdlog_header_only)
endif()

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//
// Copyright(c) 2015 Gabi Melman.
// Distributed under the MIT License (http://opensource.org/licenses/MIT)
// spdlog usage example
#include <cstdio>
#include <chrono>
void load_levels_example();
void stdout_logger_example();
void basic_example();
void rotating_example();
void daily_example();
void callback_example();
void async_example();
void binary_example();
void vector_example();
void stopwatch_example();
void trace_example();
void multi_sink_example();
void user_defined_example();
void err_handler_example();
void syslog_example();
void udp_example();
void custom_flags_example();
void file_events_example();
void replace_default_logger_example();
void mdc_example();
#include "spdlog/spdlog.h"
#include "spdlog/cfg/env.h" // support for loading levels from the environment variable
#include "spdlog/fmt/ostr.h" // support for user defined types
int main(int, char *[]) {
// Log levels can be loaded from argv/env using "SPDLOG_LEVEL"
load_levels_example();
spdlog::info("Welcome to spdlog version {}.{}.{} !", SPDLOG_VER_MAJOR, SPDLOG_VER_MINOR,
SPDLOG_VER_PATCH);
spdlog::warn("Easy padding in numbers like {:08d}", 12);
spdlog::critical("Support for int: {0:d}; hex: {0:x}; oct: {0:o}; bin: {0:b}", 42);
spdlog::info("Support for floats {:03.2f}", 1.23456);
spdlog::info("Positional args are {1} {0}..", "too", "supported");
spdlog::info("{:>8} aligned, {:<8} aligned", "right", "left");
// Runtime log levels
spdlog::set_level(spdlog::level::info); // Set global log level to info
spdlog::debug("This message should not be displayed!");
spdlog::set_level(spdlog::level::trace); // Set specific logger's log level
spdlog::debug("This message should be displayed..");
// Customize msg format for all loggers
spdlog::set_pattern("[%H:%M:%S %z] [%^%L%$] [thread %t] %v");
spdlog::info("This an info message with custom format");
spdlog::set_pattern("%+"); // back to default format
spdlog::set_level(spdlog::level::info);
// Backtrace support
// Loggers can store in a ring buffer all messages (including debug/trace) for later inspection.
// When needed, call dump_backtrace() to see what happened:
spdlog::enable_backtrace(10); // create ring buffer with capacity of 10 messages
for (int i = 0; i < 100; i++) {
spdlog::debug("Backtrace message {}", i); // not logged..
}
// e.g. if some error happened:
spdlog::dump_backtrace(); // log them now!
try {
stdout_logger_example();
basic_example();
rotating_example();
daily_example();
callback_example();
async_example();
binary_example();
vector_example();
multi_sink_example();
user_defined_example();
err_handler_example();
trace_example();
stopwatch_example();
udp_example();
custom_flags_example();
file_events_example();
replace_default_logger_example();
mdc_example();
// Flush all *registered* loggers using a worker thread every 3 seconds.
// note: registered loggers *must* be thread safe for this to work correctly!
spdlog::flush_every(std::chrono::seconds(3));
// Apply some function on all registered loggers
spdlog::apply_all([&](std::shared_ptr<spdlog::logger> l) { l->info("End of example."); });
// Release all spdlog resources, and drop all loggers in the registry.
// This is optional (only mandatory if using windows + async log).
spdlog::shutdown();
}
// Exceptions will only be thrown upon failed logger or sink construction (not during logging).
catch (const spdlog::spdlog_ex &ex) {
std::printf("Log initialization failed: %s\n", ex.what());
return 1;
}
}
#include "spdlog/sinks/stdout_color_sinks.h"
// or #include "spdlog/sinks/stdout_sinks.h" if no colors needed.
void stdout_logger_example() {
// Create color multi threaded logger.
auto console = spdlog::stdout_color_mt("console");
// or for stderr:
// auto console = spdlog::stderr_color_mt("error-logger");
}
#include "spdlog/sinks/basic_file_sink.h"
void basic_example() {
// Create basic file logger (not rotated).
auto my_logger = spdlog::basic_logger_mt("file_logger", "logs/basic-log.txt", true);
}
#include "spdlog/sinks/rotating_file_sink.h"
void rotating_example() {
// Create a file rotating logger with 5mb size max and 3 rotated files.
auto rotating_logger =
spdlog::rotating_logger_mt("some_logger_name", "logs/rotating.txt", 1048576 * 5, 3);
}
#include "spdlog/sinks/daily_file_sink.h"
void daily_example() {
// Create a daily logger - a new file is created every day on 2:30am.
auto daily_logger = spdlog::daily_logger_mt("daily_logger", "logs/daily.txt", 2, 30);
}
#include "spdlog/sinks/callback_sink.h"
void callback_example() {
// Create the logger
auto logger = spdlog::callback_logger_mt("custom_callback_logger",
[](const spdlog::details::log_msg & /*msg*/) {
// do what you need to do with msg
});
}
#include "spdlog/cfg/env.h"
void load_levels_example() {
// Set the log level to "info" and mylogger to "trace":
// SPDLOG_LEVEL=info,mylogger=trace && ./example
spdlog::cfg::load_env_levels();
// or from command line:
// ./example SPDLOG_LEVEL=info,mylogger=trace
// #include "spdlog/cfg/argv.h" // for loading levels from argv
// spdlog::cfg::load_argv_levels(args, argv);
}
#include "spdlog/async.h"
void async_example() {
// Default thread pool settings can be modified *before* creating the async logger:
// spdlog::init_thread_pool(32768, 1); // queue with max 32k items 1 backing thread.
auto async_file =
spdlog::basic_logger_mt<spdlog::async_factory>("async_file_logger", "logs/async_log.txt");
// alternatively:
// auto async_file =
// spdlog::create_async<spdlog::sinks::basic_file_sink_mt>("async_file_logger",
// "logs/async_log.txt");
for (int i = 1; i < 101; ++i) {
async_file->info("Async message #{}", i);
}
}
// Log binary data as hex.
// Many types of std::container<char> types can be used.
// Iterator ranges are supported too.
// Format flags:
// {:X} - print in uppercase.
// {:s} - don't separate each byte with space.
// {:p} - don't print the position on each line start.
// {:n} - don't split the output to lines.
#if !defined SPDLOG_USE_STD_FORMAT || defined(_MSC_VER)
#include "spdlog/fmt/bin_to_hex.h"
void binary_example() {
std::vector<char> buf;
for (int i = 0; i < 80; i++) {
buf.push_back(static_cast<char>(i & 0xff));
}
spdlog::info("Binary example: {}", spdlog::to_hex(buf));
spdlog::info("Another binary example:{:n}",
spdlog::to_hex(std::begin(buf), std::begin(buf) + 10));
// more examples:
// logger->info("uppercase: {:X}", spdlog::to_hex(buf));
// logger->info("uppercase, no delimiters: {:Xs}", spdlog::to_hex(buf));
// logger->info("uppercase, no delimiters, no position info: {:Xsp}", spdlog::to_hex(buf));
// logger->info("hexdump style: {:a}", spdlog::to_hex(buf));
// logger->info("hexdump style, 20 chars per line {:a}", spdlog::to_hex(buf, 20));
}
#else
void binary_example() {
// not supported with std::format yet
}
#endif
// Log a vector of numbers
#ifndef SPDLOG_USE_STD_FORMAT
#include "spdlog/fmt/ranges.h"
void vector_example() {
std::vector<int> vec = {1, 2, 3};
spdlog::info("Vector example: {}", vec);
}
#else
void vector_example() {}
#endif
// ! DSPDLOG_USE_STD_FORMAT
// Compile time log levels.
// define SPDLOG_ACTIVE_LEVEL to required level (e.g. SPDLOG_LEVEL_TRACE)
void trace_example() {
// trace from default logger
SPDLOG_TRACE("Some trace message.. {} ,{}", 1, 3.23);
// debug from default logger
SPDLOG_DEBUG("Some debug message.. {} ,{}", 1, 3.23);
// trace from logger object
auto logger = spdlog::get("file_logger");
SPDLOG_LOGGER_TRACE(logger, "another trace message");
}
// stopwatch example
#include "spdlog/stopwatch.h"
#include <thread>
void stopwatch_example() {
spdlog::stopwatch sw;
std::this_thread::sleep_for(std::chrono::milliseconds(123));
spdlog::info("Stopwatch: {} seconds", sw);
}
#include "spdlog/sinks/udp_sink.h"
void udp_example() {
spdlog::sinks::udp_sink_config cfg("127.0.0.1", 11091);
auto my_logger = spdlog::udp_logger_mt("udplog", cfg);
my_logger->set_level(spdlog::level::debug);
my_logger->info("hello world");
}
// A logger with multiple sinks (stdout and file) - each with a different format and log level.
void multi_sink_example() {
auto console_sink = std::make_shared<spdlog::sinks::stdout_color_sink_mt>();
console_sink->set_level(spdlog::level::warn);
console_sink->set_pattern("[multi_sink_example] [%^%l%$] %v");
auto file_sink =
std::make_shared<spdlog::sinks::basic_file_sink_mt>("logs/multisink.txt", true);
file_sink->set_level(spdlog::level::trace);
spdlog::logger logger("multi_sink", {console_sink, file_sink});
logger.set_level(spdlog::level::debug);
logger.warn("this should appear in both console and file");
logger.info("this message should not appear in the console, only in the file");
}
// User defined types logging
struct my_type {
int i = 0;
explicit my_type(int i)
: i(i){};
};
#ifndef SPDLOG_USE_STD_FORMAT // when using fmtlib
template <>
struct fmt::formatter<my_type> : fmt::formatter<std::string> {
auto format(my_type my, format_context &ctx) -> decltype(ctx.out()) {
return fmt::format_to(ctx.out(), "[my_type i={}]", my.i);
}
};
#else // when using std::format
template <>
struct std::formatter<my_type> : std::formatter<std::string> {
auto format(my_type my, format_context &ctx) const -> decltype(ctx.out()) {
return format_to(ctx.out(), "[my_type i={}]", my.i);
}
};
#endif
void user_defined_example() { spdlog::info("user defined type: {}", my_type(14)); }
// Custom error handler. Will be triggered on log failure.
void err_handler_example() {
// can be set globally or per logger(logger->set_error_handler(..))
spdlog::set_error_handler([](const std::string &msg) {
printf("*** Custom log error handler: %s ***\n", msg.c_str());
});
}
// syslog example (linux/osx/freebsd)
#ifndef _WIN32
#include "spdlog/sinks/syslog_sink.h"
void syslog_example() {
std::string ident = "spdlog-example";
auto syslog_logger = spdlog::syslog_logger_mt("syslog", ident, LOG_PID);
syslog_logger->warn("This is warning that will end up in syslog.");
}
#endif
// Android example.
#if defined(__ANDROID__)
#include "spdlog/sinks/android_sink.h"
void android_example() {
std::string tag = "spdlog-android";
auto android_logger = spdlog::android_logger_mt("android", tag);
android_logger->critical("Use \"adb shell logcat\" to view this message.");
}
#endif
// Log patterns can contain custom flags.
// this will add custom flag '%*' which will be bound to a <my_formatter_flag> instance
#include "spdlog/pattern_formatter.h"
class my_formatter_flag : public spdlog::custom_flag_formatter {
public:
void format(const spdlog::details::log_msg &,
const std::tm &,
spdlog::memory_buf_t &dest) override {
std::string some_txt = "custom-flag";
dest.append(some_txt.data(), some_txt.data() + some_txt.size());
}
std::unique_ptr<custom_flag_formatter> clone() const override {
return spdlog::details::make_unique<my_formatter_flag>();
}
};
void custom_flags_example() {
using spdlog::details::make_unique; // for pre c++14
auto formatter = make_unique<spdlog::pattern_formatter>();
formatter->add_flag<my_formatter_flag>('*').set_pattern("[%n] [%*] [%^%l%$] %v");
// set the new formatter using spdlog::set_formatter(formatter) or
// logger->set_formatter(formatter) spdlog::set_formatter(std::move(formatter));
}
void file_events_example() {
// pass the spdlog::file_event_handlers to file sinks for open/close log file notifications
spdlog::file_event_handlers handlers;
handlers.before_open = [](spdlog::filename_t filename) {
spdlog::info("Before opening {}", filename);
};
handlers.after_open = [](spdlog::filename_t filename, std::FILE *fstream) {
spdlog::info("After opening {}", filename);
fputs("After opening\n", fstream);
};
handlers.before_close = [](spdlog::filename_t filename, std::FILE *fstream) {
spdlog::info("Before closing {}", filename);
fputs("Before closing\n", fstream);
};
handlers.after_close = [](spdlog::filename_t filename) {
spdlog::info("After closing {}", filename);
};
auto file_sink = std::make_shared<spdlog::sinks::basic_file_sink_mt>("logs/events-sample.txt",
true, handlers);
spdlog::logger my_logger("some_logger", file_sink);
my_logger.info("Some log line");
}
void replace_default_logger_example() {
// store the old logger so we don't break other examples.
auto old_logger = spdlog::default_logger();
auto new_logger =
spdlog::basic_logger_mt("new_default_logger", "logs/new-default-log.txt", true);
spdlog::set_default_logger(new_logger);
spdlog::set_level(spdlog::level::info);
spdlog::debug("This message should not be displayed!");
spdlog::set_level(spdlog::level::trace);
spdlog::debug("This message should be displayed..");
spdlog::set_default_logger(old_logger);
}
// Mapped Diagnostic Context (MDC) is a map that stores key-value pairs (string values) in thread local storage.
// Each thread maintains its own MDC, which loggers use to append diagnostic information to log outputs.
// Note: it is not supported in asynchronous mode due to its reliance on thread-local storage.
#include "spdlog/mdc.h"
void mdc_example()
{
spdlog::mdc::put("key1", "value1");
spdlog::mdc::put("key2", "value2");
// if not using the default format, you can use the %& formatter to print mdc data as well
spdlog::set_pattern("[%H:%M:%S %z] [%^%L%$] [%&] %v");
spdlog::info("Some log message with context");
}

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// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
// Distributed under the MIT License (http://opensource.org/licenses/MIT)
#pragma once
//
// Async logging using global thread pool
// All loggers created here share same global thread pool.
// Each log message is pushed to a queue along with a shared pointer to the
// logger.
// If a logger deleted while having pending messages in the queue, it's actual
// destruction will defer
// until all its messages are processed by the thread pool.
// This is because each message in the queue holds a shared_ptr to the
// originating logger.
#include <spdlog/async_logger.h>
#include <spdlog/details/registry.h>
#include <spdlog/details/thread_pool.h>
#include <functional>
#include <memory>
#include <mutex>
namespace spdlog {
namespace details {
static const size_t default_async_q_size = 8192;
}
// async logger factory - creates async loggers backed with thread pool.
// if a global thread pool doesn't already exist, create it with default queue
// size of 8192 items and single thread.
template <async_overflow_policy OverflowPolicy = async_overflow_policy::block>
struct async_factory_impl {
template <typename Sink, typename... SinkArgs>
static std::shared_ptr<async_logger> create(std::string logger_name, SinkArgs &&...args) {
auto &registry_inst = details::registry::instance();
// create global thread pool if not already exists..
auto &mutex = registry_inst.tp_mutex();
std::lock_guard<std::recursive_mutex> tp_lock(mutex);
auto tp = registry_inst.get_tp();
if (tp == nullptr) {
tp = std::make_shared<details::thread_pool>(details::default_async_q_size, 1U);
registry_inst.set_tp(tp);
}
auto sink = std::make_shared<Sink>(std::forward<SinkArgs>(args)...);
auto new_logger = std::make_shared<async_logger>(std::move(logger_name), std::move(sink),
std::move(tp), OverflowPolicy);
registry_inst.initialize_logger(new_logger);
return new_logger;
}
};
using async_factory = async_factory_impl<async_overflow_policy::block>;
using async_factory_nonblock = async_factory_impl<async_overflow_policy::overrun_oldest>;
template <typename Sink, typename... SinkArgs>
inline std::shared_ptr<spdlog::logger> create_async(std::string logger_name,
SinkArgs &&...sink_args) {
return async_factory::create<Sink>(std::move(logger_name),
std::forward<SinkArgs>(sink_args)...);
}
template <typename Sink, typename... SinkArgs>
inline std::shared_ptr<spdlog::logger> create_async_nb(std::string logger_name,
SinkArgs &&...sink_args) {
return async_factory_nonblock::create<Sink>(std::move(logger_name),
std::forward<SinkArgs>(sink_args)...);
}
// set global thread pool.
inline void init_thread_pool(size_t q_size,
size_t thread_count,
std::function<void()> on_thread_start,
std::function<void()> on_thread_stop) {
auto tp = std::make_shared<details::thread_pool>(q_size, thread_count, on_thread_start,
on_thread_stop);
details::registry::instance().set_tp(std::move(tp));
}
inline void init_thread_pool(size_t q_size,
size_t thread_count,
std::function<void()> on_thread_start) {
init_thread_pool(q_size, thread_count, on_thread_start, [] {});
}
inline void init_thread_pool(size_t q_size, size_t thread_count) {
init_thread_pool(
q_size, thread_count, [] {}, [] {});
}
// get the global thread pool.
inline std::shared_ptr<spdlog::details::thread_pool> thread_pool() {
return details::registry::instance().get_tp();
}
} // namespace spdlog

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// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
// Distributed under the MIT License (http://opensource.org/licenses/MIT)
#pragma once
#ifndef SPDLOG_HEADER_ONLY
#include <spdlog/async_logger.h>
#endif
#include <spdlog/details/thread_pool.h>
#include <spdlog/sinks/sink.h>
#include <memory>
#include <string>
SPDLOG_INLINE spdlog::async_logger::async_logger(std::string logger_name,
sinks_init_list sinks_list,
std::weak_ptr<details::thread_pool> tp,
async_overflow_policy overflow_policy)
: async_logger(std::move(logger_name),
sinks_list.begin(),
sinks_list.end(),
std::move(tp),
overflow_policy) {}
SPDLOG_INLINE spdlog::async_logger::async_logger(std::string logger_name,
sink_ptr single_sink,
std::weak_ptr<details::thread_pool> tp,
async_overflow_policy overflow_policy)
: async_logger(
std::move(logger_name), {std::move(single_sink)}, std::move(tp), overflow_policy) {}
// send the log message to the thread pool
SPDLOG_INLINE void spdlog::async_logger::sink_it_(const details::log_msg &msg){
SPDLOG_TRY{if (auto pool_ptr = thread_pool_.lock()){
pool_ptr->post_log(shared_from_this(), msg, overflow_policy_);
}
else {
throw_spdlog_ex("async log: thread pool doesn't exist anymore");
}
}
SPDLOG_LOGGER_CATCH(msg.source)
}
// send flush request to the thread pool
SPDLOG_INLINE void spdlog::async_logger::flush_(){SPDLOG_TRY{auto pool_ptr = thread_pool_.lock();
if (!pool_ptr) {
throw_spdlog_ex("async flush: thread pool doesn't exist anymore");
}
std::future<void> future = pool_ptr->post_flush(shared_from_this(), overflow_policy_);
// Wait for the flush operation to complete.
// This might throw exception if the flush message get dropped because of overflow.
future.get();
}
SPDLOG_LOGGER_CATCH(source_loc())
}
//
// backend functions - called from the thread pool to do the actual job
//
SPDLOG_INLINE void spdlog::async_logger::backend_sink_it_(const details::log_msg &msg) {
for (auto &sink : sinks_) {
if (sink->should_log(msg.level)) {
SPDLOG_TRY { sink->log(msg); }
SPDLOG_LOGGER_CATCH(msg.source)
}
}
if (should_flush_(msg)) {
backend_flush_();
}
}
SPDLOG_INLINE void spdlog::async_logger::backend_flush_() {
for (auto &sink : sinks_) {
SPDLOG_TRY { sink->flush(); }
SPDLOG_LOGGER_CATCH(source_loc())
}
}
SPDLOG_INLINE std::shared_ptr<spdlog::logger> spdlog::async_logger::clone(std::string new_name) {
auto cloned = std::make_shared<spdlog::async_logger>(*this);
cloned->name_ = std::move(new_name);
return cloned;
}

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// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
// Distributed under the MIT License (http://opensource.org/licenses/MIT)
#pragma once
// Fast asynchronous logger.
// Uses pre allocated queue.
// Creates a single back thread to pop messages from the queue and log them.
//
// Upon each log write the logger:
// 1. Checks if its log level is enough to log the message
// 2. Push a new copy of the message to a queue (or block the caller until
// space is available in the queue)
// Upon destruction, logs all remaining messages in the queue before
// destructing..
#include <spdlog/logger.h>
namespace spdlog {
// Async overflow policy - block by default.
enum class async_overflow_policy {
block, // Block until message can be enqueued
overrun_oldest, // Discard oldest message in the queue if full when trying to
// add new item.
discard_new // Discard new message if the queue is full when trying to add new item.
};
namespace details {
class thread_pool;
}
class SPDLOG_API async_logger final : public std::enable_shared_from_this<async_logger>,
public logger {
friend class details::thread_pool;
public:
template <typename It>
async_logger(std::string logger_name,
It begin,
It end,
std::weak_ptr<details::thread_pool> tp,
async_overflow_policy overflow_policy = async_overflow_policy::block)
: logger(std::move(logger_name), begin, end),
thread_pool_(std::move(tp)),
overflow_policy_(overflow_policy) {}
async_logger(std::string logger_name,
sinks_init_list sinks_list,
std::weak_ptr<details::thread_pool> tp,
async_overflow_policy overflow_policy = async_overflow_policy::block);
async_logger(std::string logger_name,
sink_ptr single_sink,
std::weak_ptr<details::thread_pool> tp,
async_overflow_policy overflow_policy = async_overflow_policy::block);
std::shared_ptr<logger> clone(std::string new_name) override;
protected:
void sink_it_(const details::log_msg &msg) override;
void flush_() override;
void backend_sink_it_(const details::log_msg &incoming_log_msg);
void backend_flush_();
private:
std::weak_ptr<details::thread_pool> thread_pool_;
async_overflow_policy overflow_policy_;
};
} // namespace spdlog
#ifdef SPDLOG_HEADER_ONLY
#include "async_logger-inl.h"
#endif

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// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
// Distributed under the MIT License (http://opensource.org/licenses/MIT)
#pragma once
#include <spdlog/cfg/helpers.h>
#include <spdlog/details/registry.h>
//
// Init log levels using each argv entry that starts with "SPDLOG_LEVEL="
//
// set all loggers to debug level:
// example.exe "SPDLOG_LEVEL=debug"
// set logger1 to trace level
// example.exe "SPDLOG_LEVEL=logger1=trace"
// turn off all logging except for logger1 and logger2:
// example.exe "SPDLOG_LEVEL=off,logger1=debug,logger2=info"
namespace spdlog {
namespace cfg {
// search for SPDLOG_LEVEL= in the args and use it to init the levels
inline void load_argv_levels(int argc, const char **argv) {
const std::string spdlog_level_prefix = "SPDLOG_LEVEL=";
for (int i = 1; i < argc; i++) {
std::string arg = argv[i];
if (arg.find(spdlog_level_prefix) == 0) {
auto levels_string = arg.substr(spdlog_level_prefix.size());
helpers::load_levels(levels_string);
}
}
}
inline void load_argv_levels(int argc, char **argv) {
load_argv_levels(argc, const_cast<const char **>(argv));
}
} // namespace cfg
} // namespace spdlog

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// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
// Distributed under the MIT License (http://opensource.org/licenses/MIT)
#pragma once
#include <spdlog/cfg/helpers.h>
#include <spdlog/details/os.h>
#include <spdlog/details/registry.h>
//
// Init levels and patterns from env variables SPDLOG_LEVEL
// Inspired from Rust's "env_logger" crate (https://crates.io/crates/env_logger).
// Note - fallback to "info" level on unrecognized levels
//
// Examples:
//
// set global level to debug:
// export SPDLOG_LEVEL=debug
//
// turn off all logging except for logger1:
// export SPDLOG_LEVEL="*=off,logger1=debug"
//
// turn off all logging except for logger1 and logger2:
// export SPDLOG_LEVEL="off,logger1=debug,logger2=info"
namespace spdlog {
namespace cfg {
inline void load_env_levels() {
auto env_val = details::os::getenv("SPDLOG_LEVEL");
if (!env_val.empty()) {
helpers::load_levels(env_val);
}
}
} // namespace cfg
} // namespace spdlog

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// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
// Distributed under the MIT License (http://opensource.org/licenses/MIT)
#pragma once
#ifndef SPDLOG_HEADER_ONLY
#include <spdlog/cfg/helpers.h>
#endif
#include <spdlog/details/os.h>
#include <spdlog/details/registry.h>
#include <spdlog/spdlog.h>
#include <algorithm>
#include <sstream>
#include <string>
#include <utility>
namespace spdlog {
namespace cfg {
namespace helpers {
// inplace convert to lowercase
inline std::string &to_lower_(std::string &str) {
std::transform(str.begin(), str.end(), str.begin(), [](char ch) {
return static_cast<char>((ch >= 'A' && ch <= 'Z') ? ch + ('a' - 'A') : ch);
});
return str;
}
// inplace trim spaces
inline std::string &trim_(std::string &str) {
const char *spaces = " \n\r\t";
str.erase(str.find_last_not_of(spaces) + 1);
str.erase(0, str.find_first_not_of(spaces));
return str;
}
// return (name,value) trimmed pair from given "name=value" string.
// return empty string on missing parts
// "key=val" => ("key", "val")
// " key = val " => ("key", "val")
// "key=" => ("key", "")
// "val" => ("", "val")
inline std::pair<std::string, std::string> extract_kv_(char sep, const std::string &str) {
auto n = str.find(sep);
std::string k, v;
if (n == std::string::npos) {
v = str;
} else {
k = str.substr(0, n);
v = str.substr(n + 1);
}
return std::make_pair(trim_(k), trim_(v));
}
// return vector of key/value pairs from sequence of "K1=V1,K2=V2,.."
// "a=AAA,b=BBB,c=CCC,.." => {("a","AAA"),("b","BBB"),("c", "CCC"),...}
inline std::unordered_map<std::string, std::string> extract_key_vals_(const std::string &str) {
std::string token;
std::istringstream token_stream(str);
std::unordered_map<std::string, std::string> rv{};
while (std::getline(token_stream, token, ',')) {
if (token.empty()) {
continue;
}
auto kv = extract_kv_('=', token);
rv[kv.first] = kv.second;
}
return rv;
}
SPDLOG_INLINE void load_levels(const std::string &input) {
if (input.empty() || input.size() > 512) {
return;
}
auto key_vals = extract_key_vals_(input);
std::unordered_map<std::string, level::level_enum> levels;
level::level_enum global_level = level::info;
bool global_level_found = false;
for (auto &name_level : key_vals) {
auto &logger_name = name_level.first;
auto level_name = to_lower_(name_level.second);
auto level = level::from_str(level_name);
// ignore unrecognized level names
if (level == level::off && level_name != "off") {
continue;
}
if (logger_name.empty()) // no logger name indicate global level
{
global_level_found = true;
global_level = level;
} else {
levels[logger_name] = level;
}
}
details::registry::instance().set_levels(std::move(levels),
global_level_found ? &global_level : nullptr);
}
} // namespace helpers
} // namespace cfg
} // namespace spdlog

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// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
// Distributed under the MIT License (http://opensource.org/licenses/MIT)
#pragma once
#include <spdlog/common.h>
#include <unordered_map>
namespace spdlog {
namespace cfg {
namespace helpers {
//
// Init levels from given string
//
// Examples:
//
// set global level to debug: "debug"
// turn off all logging except for logger1: "off,logger1=debug"
// turn off all logging except for logger1 and logger2: "off,logger1=debug,logger2=info"
//
SPDLOG_API void load_levels(const std::string &txt);
} // namespace helpers
} // namespace cfg
} // namespace spdlog
#ifdef SPDLOG_HEADER_ONLY
#include "helpers-inl.h"
#endif // SPDLOG_HEADER_ONLY

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// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
// Distributed under the MIT License (http://opensource.org/licenses/MIT)
#pragma once
#ifndef SPDLOG_HEADER_ONLY
#include <spdlog/common.h>
#endif
#include <algorithm>
#include <iterator>
namespace spdlog {
namespace level {
#if __cplusplus >= 201703L
constexpr
#endif
static string_view_t level_string_views[] SPDLOG_LEVEL_NAMES;
static const char *short_level_names[] SPDLOG_SHORT_LEVEL_NAMES;
SPDLOG_INLINE const string_view_t &to_string_view(spdlog::level::level_enum l) SPDLOG_NOEXCEPT {
return level_string_views[l];
}
SPDLOG_INLINE const char *to_short_c_str(spdlog::level::level_enum l) SPDLOG_NOEXCEPT {
return short_level_names[l];
}
SPDLOG_INLINE spdlog::level::level_enum from_str(const std::string &name) SPDLOG_NOEXCEPT {
auto it = std::find(std::begin(level_string_views), std::end(level_string_views), name);
if (it != std::end(level_string_views))
return static_cast<level::level_enum>(std::distance(std::begin(level_string_views), it));
// check also for "warn" and "err" before giving up..
if (name == "warn") {
return level::warn;
}
if (name == "err") {
return level::err;
}
return level::off;
}
} // namespace level
SPDLOG_INLINE spdlog_ex::spdlog_ex(std::string msg)
: msg_(std::move(msg)) {}
SPDLOG_INLINE spdlog_ex::spdlog_ex(const std::string &msg, int last_errno) {
#ifdef SPDLOG_USE_STD_FORMAT
msg_ = std::system_error(std::error_code(last_errno, std::generic_category()), msg).what();
#else
memory_buf_t outbuf;
fmt::format_system_error(outbuf, last_errno, msg.c_str());
msg_ = fmt::to_string(outbuf);
#endif
}
SPDLOG_INLINE const char *spdlog_ex::what() const SPDLOG_NOEXCEPT { return msg_.c_str(); }
SPDLOG_INLINE void throw_spdlog_ex(const std::string &msg, int last_errno) {
SPDLOG_THROW(spdlog_ex(msg, last_errno));
}
SPDLOG_INLINE void throw_spdlog_ex(std::string msg) { SPDLOG_THROW(spdlog_ex(std::move(msg))); }
} // namespace spdlog

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// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
// Distributed under the MIT License (http://opensource.org/licenses/MIT)
#pragma once
#include <spdlog/details/null_mutex.h>
#include <spdlog/tweakme.h>
#include <atomic>
#include <chrono>
#include <cstdio>
#include <exception>
#include <functional>
#include <initializer_list>
#include <memory>
#include <string>
#include <type_traits>
#ifdef SPDLOG_USE_STD_FORMAT
#include <version>
#if __cpp_lib_format >= 202207L
#include <format>
#else
#include <string_view>
#endif
#endif
#ifdef SPDLOG_COMPILED_LIB
#undef SPDLOG_HEADER_ONLY
#if defined(SPDLOG_SHARED_LIB)
#if defined(_WIN32)
#ifdef spdlog_EXPORTS
#define SPDLOG_API __declspec(dllexport)
#else // !spdlog_EXPORTS
#define SPDLOG_API __declspec(dllimport)
#endif
#else // !defined(_WIN32)
#define SPDLOG_API __attribute__((visibility("default")))
#endif
#else // !defined(SPDLOG_SHARED_LIB)
#define SPDLOG_API
#endif
#define SPDLOG_INLINE
#else // !defined(SPDLOG_COMPILED_LIB)
#define SPDLOG_API
#define SPDLOG_HEADER_ONLY
#define SPDLOG_INLINE inline
#endif // #ifdef SPDLOG_COMPILED_LIB
#include <spdlog/fmt/fmt.h>
#if !defined(SPDLOG_USE_STD_FORMAT) && \
FMT_VERSION >= 80000 // backward compatibility with fmt versions older than 8
#define SPDLOG_FMT_RUNTIME(format_string) fmt::runtime(format_string)
#define SPDLOG_FMT_STRING(format_string) FMT_STRING(format_string)
#if defined(SPDLOG_WCHAR_FILENAMES) || defined(SPDLOG_WCHAR_TO_UTF8_SUPPORT)
#include <spdlog/fmt/xchar.h>
#endif
#else
#define SPDLOG_FMT_RUNTIME(format_string) format_string
#define SPDLOG_FMT_STRING(format_string) format_string
#endif
// visual studio up to 2013 does not support noexcept nor constexpr
#if defined(_MSC_VER) && (_MSC_VER < 1900)
#define SPDLOG_NOEXCEPT _NOEXCEPT
#define SPDLOG_CONSTEXPR
#else
#define SPDLOG_NOEXCEPT noexcept
#define SPDLOG_CONSTEXPR constexpr
#endif
// If building with std::format, can just use constexpr, otherwise if building with fmt
// SPDLOG_CONSTEXPR_FUNC needs to be set the same as FMT_CONSTEXPR to avoid situations where
// a constexpr function in spdlog could end up calling a non-constexpr function in fmt
// depending on the compiler
// If fmt determines it can't use constexpr, we should inline the function instead
#ifdef SPDLOG_USE_STD_FORMAT
#define SPDLOG_CONSTEXPR_FUNC constexpr
#else // Being built with fmt
#if FMT_USE_CONSTEXPR
#define SPDLOG_CONSTEXPR_FUNC FMT_CONSTEXPR
#else
#define SPDLOG_CONSTEXPR_FUNC inline
#endif
#endif
#if defined(__GNUC__) || defined(__clang__)
#define SPDLOG_DEPRECATED __attribute__((deprecated))
#elif defined(_MSC_VER)
#define SPDLOG_DEPRECATED __declspec(deprecated)
#else
#define SPDLOG_DEPRECATED
#endif
// disable thread local on msvc 2013
#ifndef SPDLOG_NO_TLS
#if (defined(_MSC_VER) && (_MSC_VER < 1900)) || defined(__cplusplus_winrt)
#define SPDLOG_NO_TLS 1
#endif
#endif
#ifndef SPDLOG_FUNCTION
#define SPDLOG_FUNCTION static_cast<const char *>(__FUNCTION__)
#endif
#ifdef SPDLOG_NO_EXCEPTIONS
#define SPDLOG_TRY
#define SPDLOG_THROW(ex) \
do { \
printf("spdlog fatal error: %s\n", ex.what()); \
std::abort(); \
} while (0)
#define SPDLOG_CATCH_STD
#else
#define SPDLOG_TRY try
#define SPDLOG_THROW(ex) throw(ex)
#define SPDLOG_CATCH_STD \
catch (const std::exception &) { \
}
#endif
namespace spdlog {
class formatter;
namespace sinks {
class sink;
}
#if defined(_WIN32) && defined(SPDLOG_WCHAR_FILENAMES)
using filename_t = std::wstring;
// allow macro expansion to occur in SPDLOG_FILENAME_T
#define SPDLOG_FILENAME_T_INNER(s) L##s
#define SPDLOG_FILENAME_T(s) SPDLOG_FILENAME_T_INNER(s)
#else
using filename_t = std::string;
#define SPDLOG_FILENAME_T(s) s
#endif
using log_clock = std::chrono::system_clock;
using sink_ptr = std::shared_ptr<sinks::sink>;
using sinks_init_list = std::initializer_list<sink_ptr>;
using err_handler = std::function<void(const std::string &err_msg)>;
#ifdef SPDLOG_USE_STD_FORMAT
namespace fmt_lib = std;
using string_view_t = std::string_view;
using memory_buf_t = std::string;
template <typename... Args>
#if __cpp_lib_format >= 202207L
using format_string_t = std::format_string<Args...>;
#else
using format_string_t = std::string_view;
#endif
template <class T, class Char = char>
struct is_convertible_to_basic_format_string
: std::integral_constant<bool, std::is_convertible<T, std::basic_string_view<Char>>::value> {};
#if defined(SPDLOG_WCHAR_FILENAMES) || defined(SPDLOG_WCHAR_TO_UTF8_SUPPORT)
using wstring_view_t = std::wstring_view;
using wmemory_buf_t = std::wstring;
template <typename... Args>
#if __cpp_lib_format >= 202207L
using wformat_string_t = std::wformat_string<Args...>;
#else
using wformat_string_t = std::wstring_view;
#endif
#endif
#define SPDLOG_BUF_TO_STRING(x) x
#else // use fmt lib instead of std::format
namespace fmt_lib = fmt;
using string_view_t = fmt::basic_string_view<char>;
using memory_buf_t = fmt::basic_memory_buffer<char, 250>;
template <typename... Args>
using format_string_t = fmt::format_string<Args...>;
template <class T>
using remove_cvref_t = typename std::remove_cv<typename std::remove_reference<T>::type>::type;
template <typename Char>
#if FMT_VERSION >= 90101
using fmt_runtime_string = fmt::runtime_format_string<Char>;
#else
using fmt_runtime_string = fmt::basic_runtime<Char>;
#endif
// clang doesn't like SFINAE disabled constructor in std::is_convertible<> so have to repeat the
// condition from basic_format_string here, in addition, fmt::basic_runtime<Char> is only
// convertible to basic_format_string<Char> but not basic_string_view<Char>
template <class T, class Char = char>
struct is_convertible_to_basic_format_string
: std::integral_constant<bool,
std::is_convertible<T, fmt::basic_string_view<Char>>::value ||
std::is_same<remove_cvref_t<T>, fmt_runtime_string<Char>>::value> {
};
#if defined(SPDLOG_WCHAR_FILENAMES) || defined(SPDLOG_WCHAR_TO_UTF8_SUPPORT)
using wstring_view_t = fmt::basic_string_view<wchar_t>;
using wmemory_buf_t = fmt::basic_memory_buffer<wchar_t, 250>;
template <typename... Args>
using wformat_string_t = fmt::wformat_string<Args...>;
#endif
#define SPDLOG_BUF_TO_STRING(x) fmt::to_string(x)
#endif
#ifdef SPDLOG_WCHAR_TO_UTF8_SUPPORT
#ifndef _WIN32
#error SPDLOG_WCHAR_TO_UTF8_SUPPORT only supported on windows
#endif // _WIN32
#endif // SPDLOG_WCHAR_TO_UTF8_SUPPORT
template <class T>
struct is_convertible_to_any_format_string
: std::integral_constant<bool,
is_convertible_to_basic_format_string<T, char>::value ||
is_convertible_to_basic_format_string<T, wchar_t>::value> {};
#if defined(SPDLOG_NO_ATOMIC_LEVELS)
using level_t = details::null_atomic_int;
#else
using level_t = std::atomic<int>;
#endif
#define SPDLOG_LEVEL_TRACE 0
#define SPDLOG_LEVEL_DEBUG 1
#define SPDLOG_LEVEL_INFO 2
#define SPDLOG_LEVEL_WARN 3
#define SPDLOG_LEVEL_ERROR 4
#define SPDLOG_LEVEL_CRITICAL 5
#define SPDLOG_LEVEL_OFF 6
#if !defined(SPDLOG_ACTIVE_LEVEL)
#define SPDLOG_ACTIVE_LEVEL SPDLOG_LEVEL_INFO
#endif
// Log level enum
namespace level {
enum level_enum : int {
trace = SPDLOG_LEVEL_TRACE,
debug = SPDLOG_LEVEL_DEBUG,
info = SPDLOG_LEVEL_INFO,
warn = SPDLOG_LEVEL_WARN,
err = SPDLOG_LEVEL_ERROR,
critical = SPDLOG_LEVEL_CRITICAL,
off = SPDLOG_LEVEL_OFF,
n_levels
};
#define SPDLOG_LEVEL_NAME_TRACE spdlog::string_view_t("trace", 5)
#define SPDLOG_LEVEL_NAME_DEBUG spdlog::string_view_t("debug", 5)
#define SPDLOG_LEVEL_NAME_INFO spdlog::string_view_t("info", 4)
#define SPDLOG_LEVEL_NAME_WARNING spdlog::string_view_t("warning", 7)
#define SPDLOG_LEVEL_NAME_ERROR spdlog::string_view_t("error", 5)
#define SPDLOG_LEVEL_NAME_CRITICAL spdlog::string_view_t("critical", 8)
#define SPDLOG_LEVEL_NAME_OFF spdlog::string_view_t("off", 3)
#if !defined(SPDLOG_LEVEL_NAMES)
#define SPDLOG_LEVEL_NAMES \
{ \
SPDLOG_LEVEL_NAME_TRACE, SPDLOG_LEVEL_NAME_DEBUG, SPDLOG_LEVEL_NAME_INFO, \
SPDLOG_LEVEL_NAME_WARNING, SPDLOG_LEVEL_NAME_ERROR, SPDLOG_LEVEL_NAME_CRITICAL, \
SPDLOG_LEVEL_NAME_OFF \
}
#endif
#if !defined(SPDLOG_SHORT_LEVEL_NAMES)
#define SPDLOG_SHORT_LEVEL_NAMES \
{ "T", "D", "I", "W", "E", "C", "O" }
#endif
SPDLOG_API const string_view_t &to_string_view(spdlog::level::level_enum l) SPDLOG_NOEXCEPT;
SPDLOG_API const char *to_short_c_str(spdlog::level::level_enum l) SPDLOG_NOEXCEPT;
SPDLOG_API spdlog::level::level_enum from_str(const std::string &name) SPDLOG_NOEXCEPT;
} // namespace level
//
// Color mode used by sinks with color support.
//
enum class color_mode { always, automatic, never };
//
// Pattern time - specific time getting to use for pattern_formatter.
// local time by default
//
enum class pattern_time_type {
local, // log localtime
utc // log utc
};
//
// Log exception
//
class SPDLOG_API spdlog_ex : public std::exception {
public:
explicit spdlog_ex(std::string msg);
spdlog_ex(const std::string &msg, int last_errno);
const char *what() const SPDLOG_NOEXCEPT override;
private:
std::string msg_;
};
[[noreturn]] SPDLOG_API void throw_spdlog_ex(const std::string &msg, int last_errno);
[[noreturn]] SPDLOG_API void throw_spdlog_ex(std::string msg);
struct source_loc {
SPDLOG_CONSTEXPR source_loc() = default;
SPDLOG_CONSTEXPR source_loc(const char *filename_in, int line_in, const char *funcname_in)
: filename{filename_in},
line{line_in},
funcname{funcname_in} {}
SPDLOG_CONSTEXPR bool empty() const SPDLOG_NOEXCEPT { return line <= 0; }
const char *filename{nullptr};
int line{0};
const char *funcname{nullptr};
};
struct file_event_handlers {
file_event_handlers()
: before_open(nullptr),
after_open(nullptr),
before_close(nullptr),
after_close(nullptr) {}
std::function<void(const filename_t &filename)> before_open;
std::function<void(const filename_t &filename, std::FILE *file_stream)> after_open;
std::function<void(const filename_t &filename, std::FILE *file_stream)> before_close;
std::function<void(const filename_t &filename)> after_close;
};
namespace details {
// to_string_view
SPDLOG_CONSTEXPR_FUNC spdlog::string_view_t to_string_view(const memory_buf_t &buf)
SPDLOG_NOEXCEPT {
return spdlog::string_view_t{buf.data(), buf.size()};
}
SPDLOG_CONSTEXPR_FUNC spdlog::string_view_t to_string_view(spdlog::string_view_t str)
SPDLOG_NOEXCEPT {
return str;
}
#if defined(SPDLOG_WCHAR_FILENAMES) || defined(SPDLOG_WCHAR_TO_UTF8_SUPPORT)
SPDLOG_CONSTEXPR_FUNC spdlog::wstring_view_t to_string_view(const wmemory_buf_t &buf)
SPDLOG_NOEXCEPT {
return spdlog::wstring_view_t{buf.data(), buf.size()};
}
SPDLOG_CONSTEXPR_FUNC spdlog::wstring_view_t to_string_view(spdlog::wstring_view_t str)
SPDLOG_NOEXCEPT {
return str;
}
#endif
#ifndef SPDLOG_USE_STD_FORMAT
template <typename T, typename... Args>
inline fmt::basic_string_view<T> to_string_view(fmt::basic_format_string<T, Args...> fmt) {
return fmt;
}
#elif __cpp_lib_format >= 202207L
template <typename T, typename... Args>
SPDLOG_CONSTEXPR_FUNC std::basic_string_view<T> to_string_view(
std::basic_format_string<T, Args...> fmt) SPDLOG_NOEXCEPT {
return fmt.get();
}
#endif
// make_unique support for pre c++14
#if __cplusplus >= 201402L // C++14 and beyond
using std::enable_if_t;
using std::make_unique;
#else
template <bool B, class T = void>
using enable_if_t = typename std::enable_if<B, T>::type;
template <typename T, typename... Args>
std::unique_ptr<T> make_unique(Args &&...args) {
static_assert(!std::is_array<T>::value, "arrays not supported");
return std::unique_ptr<T>(new T(std::forward<Args>(args)...));
}
#endif
// to avoid useless casts (see https://github.com/nlohmann/json/issues/2893#issuecomment-889152324)
template <typename T, typename U, enable_if_t<!std::is_same<T, U>::value, int> = 0>
constexpr T conditional_static_cast(U value) {
return static_cast<T>(value);
}
template <typename T, typename U, enable_if_t<std::is_same<T, U>::value, int> = 0>
constexpr T conditional_static_cast(U value) {
return value;
}
} // namespace details
} // namespace spdlog
#ifdef SPDLOG_HEADER_ONLY
#include "common-inl.h"
#endif

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// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
// Distributed under the MIT License (http://opensource.org/licenses/MIT)
#pragma once
#ifndef SPDLOG_HEADER_ONLY
#include <spdlog/details/backtracer.h>
#endif
namespace spdlog {
namespace details {
SPDLOG_INLINE backtracer::backtracer(const backtracer &other) {
std::lock_guard<std::mutex> lock(other.mutex_);
enabled_ = other.enabled();
messages_ = other.messages_;
}
SPDLOG_INLINE backtracer::backtracer(backtracer &&other) SPDLOG_NOEXCEPT {
std::lock_guard<std::mutex> lock(other.mutex_);
enabled_ = other.enabled();
messages_ = std::move(other.messages_);
}
SPDLOG_INLINE backtracer &backtracer::operator=(backtracer other) {
std::lock_guard<std::mutex> lock(mutex_);
enabled_ = other.enabled();
messages_ = std::move(other.messages_);
return *this;
}
SPDLOG_INLINE void backtracer::enable(size_t size) {
std::lock_guard<std::mutex> lock{mutex_};
enabled_.store(true, std::memory_order_relaxed);
messages_ = circular_q<log_msg_buffer>{size};
}
SPDLOG_INLINE void backtracer::disable() {
std::lock_guard<std::mutex> lock{mutex_};
enabled_.store(false, std::memory_order_relaxed);
}
SPDLOG_INLINE bool backtracer::enabled() const { return enabled_.load(std::memory_order_relaxed); }
SPDLOG_INLINE void backtracer::push_back(const log_msg &msg) {
std::lock_guard<std::mutex> lock{mutex_};
messages_.push_back(log_msg_buffer{msg});
}
SPDLOG_INLINE bool backtracer::empty() const {
std::lock_guard<std::mutex> lock{mutex_};
return messages_.empty();
}
// pop all items in the q and apply the given fun on each of them.
SPDLOG_INLINE void backtracer::foreach_pop(std::function<void(const details::log_msg &)> fun) {
std::lock_guard<std::mutex> lock{mutex_};
while (!messages_.empty()) {
auto &front_msg = messages_.front();
fun(front_msg);
messages_.pop_front();
}
}
} // namespace details
} // namespace spdlog

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// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
// Distributed under the MIT License (http://opensource.org/licenses/MIT)
#pragma once
#include <spdlog/details/circular_q.h>
#include <spdlog/details/log_msg_buffer.h>
#include <atomic>
#include <functional>
#include <mutex>
// Store log messages in circular buffer.
// Useful for storing debug data in case of error/warning happens.
namespace spdlog {
namespace details {
class SPDLOG_API backtracer {
mutable std::mutex mutex_;
std::atomic<bool> enabled_{false};
circular_q<log_msg_buffer> messages_;
public:
backtracer() = default;
backtracer(const backtracer &other);
backtracer(backtracer &&other) SPDLOG_NOEXCEPT;
backtracer &operator=(backtracer other);
void enable(size_t size);
void disable();
bool enabled() const;
void push_back(const log_msg &msg);
bool empty() const;
// pop all items in the q and apply the given fun on each of them.
void foreach_pop(std::function<void(const details::log_msg &)> fun);
};
} // namespace details
} // namespace spdlog
#ifdef SPDLOG_HEADER_ONLY
#include "backtracer-inl.h"
#endif

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// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
// Distributed under the MIT License (http://opensource.org/licenses/MIT)
// circular q view of std::vector.
#pragma once
#include <cassert>
#include <vector>
#include "spdlog/common.h"
namespace spdlog {
namespace details {
template <typename T>
class circular_q {
size_t max_items_ = 0;
typename std::vector<T>::size_type head_ = 0;
typename std::vector<T>::size_type tail_ = 0;
size_t overrun_counter_ = 0;
std::vector<T> v_;
public:
using value_type = T;
// empty ctor - create a disabled queue with no elements allocated at all
circular_q() = default;
explicit circular_q(size_t max_items)
: max_items_(max_items + 1) // one item is reserved as marker for full q
,
v_(max_items_) {}
circular_q(const circular_q &) = default;
circular_q &operator=(const circular_q &) = default;
// move cannot be default,
// since we need to reset head_, tail_, etc to zero in the moved object
circular_q(circular_q &&other) SPDLOG_NOEXCEPT { copy_moveable(std::move(other)); }
circular_q &operator=(circular_q &&other) SPDLOG_NOEXCEPT {
copy_moveable(std::move(other));
return *this;
}
// push back, overrun (oldest) item if no room left
void push_back(T &&item) {
if (max_items_ > 0) {
v_[tail_] = std::move(item);
tail_ = (tail_ + 1) % max_items_;
if (tail_ == head_) // overrun last item if full
{
head_ = (head_ + 1) % max_items_;
++overrun_counter_;
}
}
}
// Return reference to the front item.
// If there are no elements in the container, the behavior is undefined.
const T &front() const { return v_[head_]; }
T &front() { return v_[head_]; }
// Return number of elements actually stored
size_t size() const {
if (tail_ >= head_) {
return tail_ - head_;
} else {
return max_items_ - (head_ - tail_);
}
}
// Return const reference to item by index.
// If index is out of range 0…size()-1, the behavior is undefined.
const T &at(size_t i) const {
assert(i < size());
return v_[(head_ + i) % max_items_];
}
// Pop item from front.
// If there are no elements in the container, the behavior is undefined.
void pop_front() { head_ = (head_ + 1) % max_items_; }
bool empty() const { return tail_ == head_; }
bool full() const {
// head is ahead of the tail by 1
if (max_items_ > 0) {
return ((tail_ + 1) % max_items_) == head_;
}
return false;
}
size_t overrun_counter() const { return overrun_counter_; }
void reset_overrun_counter() { overrun_counter_ = 0; }
private:
// copy from other&& and reset it to disabled state
void copy_moveable(circular_q &&other) SPDLOG_NOEXCEPT {
max_items_ = other.max_items_;
head_ = other.head_;
tail_ = other.tail_;
overrun_counter_ = other.overrun_counter_;
v_ = std::move(other.v_);
// put &&other in disabled, but valid state
other.max_items_ = 0;
other.head_ = other.tail_ = 0;
other.overrun_counter_ = 0;
}
};
} // namespace details
} // namespace spdlog

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// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
// Distributed under the MIT License (http://opensource.org/licenses/MIT)
#pragma once
#include <mutex>
#include <spdlog/details/null_mutex.h>
namespace spdlog {
namespace details {
struct console_mutex {
using mutex_t = std::mutex;
static mutex_t &mutex() {
static mutex_t s_mutex;
return s_mutex;
}
};
struct console_nullmutex {
using mutex_t = null_mutex;
static mutex_t &mutex() {
static mutex_t s_mutex;
return s_mutex;
}
};
} // namespace details
} // namespace spdlog

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// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
// Distributed under the MIT License (http://opensource.org/licenses/MIT)
#pragma once
#ifndef SPDLOG_HEADER_ONLY
#include <spdlog/details/file_helper.h>
#endif
#include <spdlog/common.h>
#include <spdlog/details/os.h>
#include <cerrno>
#include <chrono>
#include <cstdio>
#include <string>
#include <thread>
#include <tuple>
namespace spdlog {
namespace details {
SPDLOG_INLINE file_helper::file_helper(const file_event_handlers &event_handlers)
: event_handlers_(event_handlers) {}
SPDLOG_INLINE file_helper::~file_helper() { close(); }
SPDLOG_INLINE void file_helper::open(const filename_t &fname, bool truncate) {
close();
filename_ = fname;
auto *mode = SPDLOG_FILENAME_T("ab");
auto *trunc_mode = SPDLOG_FILENAME_T("wb");
if (event_handlers_.before_open) {
event_handlers_.before_open(filename_);
}
for (int tries = 0; tries < open_tries_; ++tries) {
// create containing folder if not exists already.
os::create_dir(os::dir_name(fname));
if (truncate) {
// Truncate by opening-and-closing a tmp file in "wb" mode, always
// opening the actual log-we-write-to in "ab" mode, since that
// interacts more politely with eternal processes that might
// rotate/truncate the file underneath us.
std::FILE *tmp;
if (os::fopen_s(&tmp, fname, trunc_mode)) {
continue;
}
std::fclose(tmp);
}
if (!os::fopen_s(&fd_, fname, mode)) {
if (event_handlers_.after_open) {
event_handlers_.after_open(filename_, fd_);
}
return;
}
details::os::sleep_for_millis(open_interval_);
}
throw_spdlog_ex("Failed opening file " + os::filename_to_str(filename_) + " for writing",
errno);
}
SPDLOG_INLINE void file_helper::reopen(bool truncate) {
if (filename_.empty()) {
throw_spdlog_ex("Failed re opening file - was not opened before");
}
this->open(filename_, truncate);
}
SPDLOG_INLINE void file_helper::flush() {
if (std::fflush(fd_) != 0) {
throw_spdlog_ex("Failed flush to file " + os::filename_to_str(filename_), errno);
}
}
SPDLOG_INLINE void file_helper::sync() {
if (!os::fsync(fd_)) {
throw_spdlog_ex("Failed to fsync file " + os::filename_to_str(filename_), errno);
}
}
SPDLOG_INLINE void file_helper::close() {
if (fd_ != nullptr) {
if (event_handlers_.before_close) {
event_handlers_.before_close(filename_, fd_);
}
std::fclose(fd_);
fd_ = nullptr;
if (event_handlers_.after_close) {
event_handlers_.after_close(filename_);
}
}
}
SPDLOG_INLINE void file_helper::write(const memory_buf_t &buf) {
if (fd_ == nullptr) return;
size_t msg_size = buf.size();
auto data = buf.data();
if (std::fwrite(data, 1, msg_size, fd_) != msg_size) {
throw_spdlog_ex("Failed writing to file " + os::filename_to_str(filename_), errno);
}
}
SPDLOG_INLINE size_t file_helper::size() const {
if (fd_ == nullptr) {
throw_spdlog_ex("Cannot use size() on closed file " + os::filename_to_str(filename_));
}
return os::filesize(fd_);
}
SPDLOG_INLINE const filename_t &file_helper::filename() const { return filename_; }
//
// return file path and its extension:
//
// "mylog.txt" => ("mylog", ".txt")
// "mylog" => ("mylog", "")
// "mylog." => ("mylog.", "")
// "/dir1/dir2/mylog.txt" => ("/dir1/dir2/mylog", ".txt")
//
// the starting dot in filenames is ignored (hidden files):
//
// ".mylog" => (".mylog". "")
// "my_folder/.mylog" => ("my_folder/.mylog", "")
// "my_folder/.mylog.txt" => ("my_folder/.mylog", ".txt")
SPDLOG_INLINE std::tuple<filename_t, filename_t> file_helper::split_by_extension(
const filename_t &fname) {
auto ext_index = fname.rfind('.');
// no valid extension found - return whole path and empty string as
// extension
if (ext_index == filename_t::npos || ext_index == 0 || ext_index == fname.size() - 1) {
return std::make_tuple(fname, filename_t());
}
// treat cases like "/etc/rc.d/somelogfile or "/abc/.hiddenfile"
auto folder_index = fname.find_last_of(details::os::folder_seps_filename);
if (folder_index != filename_t::npos && folder_index >= ext_index - 1) {
return std::make_tuple(fname, filename_t());
}
// finally - return a valid base and extension tuple
return std::make_tuple(fname.substr(0, ext_index), fname.substr(ext_index));
}
} // namespace details
} // namespace spdlog

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// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
// Distributed under the MIT License (http://opensource.org/licenses/MIT)
#pragma once
#include <spdlog/common.h>
#include <tuple>
namespace spdlog {
namespace details {
// Helper class for file sinks.
// When failing to open a file, retry several times(5) with a delay interval(10 ms).
// Throw spdlog_ex exception on errors.
class SPDLOG_API file_helper {
public:
file_helper() = default;
explicit file_helper(const file_event_handlers &event_handlers);
file_helper(const file_helper &) = delete;
file_helper &operator=(const file_helper &) = delete;
~file_helper();
void open(const filename_t &fname, bool truncate = false);
void reopen(bool truncate);
void flush();
void sync();
void close();
void write(const memory_buf_t &buf);
size_t size() const;
const filename_t &filename() const;
//
// return file path and its extension:
//
// "mylog.txt" => ("mylog", ".txt")
// "mylog" => ("mylog", "")
// "mylog." => ("mylog.", "")
// "/dir1/dir2/mylog.txt" => ("/dir1/dir2/mylog", ".txt")
//
// the starting dot in filenames is ignored (hidden files):
//
// ".mylog" => (".mylog". "")
// "my_folder/.mylog" => ("my_folder/.mylog", "")
// "my_folder/.mylog.txt" => ("my_folder/.mylog", ".txt")
static std::tuple<filename_t, filename_t> split_by_extension(const filename_t &fname);
private:
const int open_tries_ = 5;
const unsigned int open_interval_ = 10;
std::FILE *fd_{nullptr};
filename_t filename_;
file_event_handlers event_handlers_;
};
} // namespace details
} // namespace spdlog
#ifdef SPDLOG_HEADER_ONLY
#include "file_helper-inl.h"
#endif

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// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
// Distributed under the MIT License (http://opensource.org/licenses/MIT)
#pragma once
#include <chrono>
#include <iterator>
#include <spdlog/common.h>
#include <spdlog/fmt/fmt.h>
#include <type_traits>
#ifdef SPDLOG_USE_STD_FORMAT
#include <charconv>
#include <limits>
#endif
// Some fmt helpers to efficiently format and pad ints and strings
namespace spdlog {
namespace details {
namespace fmt_helper {
inline void append_string_view(spdlog::string_view_t view, memory_buf_t &dest) {
auto *buf_ptr = view.data();
dest.append(buf_ptr, buf_ptr + view.size());
}
#ifdef SPDLOG_USE_STD_FORMAT
template <typename T>
inline void append_int(T n, memory_buf_t &dest) {
// Buffer should be large enough to hold all digits (digits10 + 1) and a sign
SPDLOG_CONSTEXPR const auto BUF_SIZE = std::numeric_limits<T>::digits10 + 2;
char buf[BUF_SIZE];
auto [ptr, ec] = std::to_chars(buf, buf + BUF_SIZE, n, 10);
if (ec == std::errc()) {
dest.append(buf, ptr);
} else {
throw_spdlog_ex("Failed to format int", static_cast<int>(ec));
}
}
#else
template <typename T>
inline void append_int(T n, memory_buf_t &dest) {
fmt::format_int i(n);
dest.append(i.data(), i.data() + i.size());
}
#endif
template <typename T>
SPDLOG_CONSTEXPR_FUNC unsigned int count_digits_fallback(T n) {
// taken from fmt: https://github.com/fmtlib/fmt/blob/8.0.1/include/fmt/format.h#L899-L912
unsigned int count = 1;
for (;;) {
// Integer division is slow so do it for a group of four digits instead
// of for every digit. The idea comes from the talk by Alexandrescu
// "Three Optimization Tips for C++". See speed-test for a comparison.
if (n < 10) return count;
if (n < 100) return count + 1;
if (n < 1000) return count + 2;
if (n < 10000) return count + 3;
n /= 10000u;
count += 4;
}
}
template <typename T>
inline unsigned int count_digits(T n) {
using count_type =
typename std::conditional<(sizeof(T) > sizeof(uint32_t)), uint64_t, uint32_t>::type;
#ifdef SPDLOG_USE_STD_FORMAT
return count_digits_fallback(static_cast<count_type>(n));
#else
return static_cast<unsigned int>(fmt::
// fmt 7.0.0 renamed the internal namespace to detail.
// See: https://github.com/fmtlib/fmt/issues/1538
#if FMT_VERSION < 70000
internal
#else
detail
#endif
::count_digits(static_cast<count_type>(n)));
#endif
}
inline void pad2(int n, memory_buf_t &dest) {
if (n >= 0 && n < 100) // 0-99
{
dest.push_back(static_cast<char>('0' + n / 10));
dest.push_back(static_cast<char>('0' + n % 10));
} else // unlikely, but just in case, let fmt deal with it
{
fmt_lib::format_to(std::back_inserter(dest), SPDLOG_FMT_STRING("{:02}"), n);
}
}
template <typename T>
inline void pad_uint(T n, unsigned int width, memory_buf_t &dest) {
static_assert(std::is_unsigned<T>::value, "pad_uint must get unsigned T");
for (auto digits = count_digits(n); digits < width; digits++) {
dest.push_back('0');
}
append_int(n, dest);
}
template <typename T>
inline void pad3(T n, memory_buf_t &dest) {
static_assert(std::is_unsigned<T>::value, "pad3 must get unsigned T");
if (n < 1000) {
dest.push_back(static_cast<char>(n / 100 + '0'));
n = n % 100;
dest.push_back(static_cast<char>((n / 10) + '0'));
dest.push_back(static_cast<char>((n % 10) + '0'));
} else {
append_int(n, dest);
}
}
template <typename T>
inline void pad6(T n, memory_buf_t &dest) {
pad_uint(n, 6, dest);
}
template <typename T>
inline void pad9(T n, memory_buf_t &dest) {
pad_uint(n, 9, dest);
}
// return fraction of a second of the given time_point.
// e.g.
// fraction<std::milliseconds>(tp) -> will return the millis part of the second
template <typename ToDuration>
inline ToDuration time_fraction(log_clock::time_point tp) {
using std::chrono::duration_cast;
using std::chrono::seconds;
auto duration = tp.time_since_epoch();
auto secs = duration_cast<seconds>(duration);
return duration_cast<ToDuration>(duration) - duration_cast<ToDuration>(secs);
}
} // namespace fmt_helper
} // namespace details
} // namespace spdlog

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// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
// Distributed under the MIT License (http://opensource.org/licenses/MIT)
#pragma once
#ifndef SPDLOG_HEADER_ONLY
#include <spdlog/details/log_msg.h>
#endif
#include <spdlog/details/os.h>
namespace spdlog {
namespace details {
SPDLOG_INLINE log_msg::log_msg(spdlog::log_clock::time_point log_time,
spdlog::source_loc loc,
string_view_t a_logger_name,
spdlog::level::level_enum lvl,
spdlog::string_view_t msg)
: logger_name(a_logger_name),
level(lvl),
time(log_time)
#ifndef SPDLOG_NO_THREAD_ID
,
thread_id(os::thread_id())
#endif
,
source(loc),
payload(msg) {
}
SPDLOG_INLINE log_msg::log_msg(spdlog::source_loc loc,
string_view_t a_logger_name,
spdlog::level::level_enum lvl,
spdlog::string_view_t msg)
: log_msg(os::now(), loc, a_logger_name, lvl, msg) {}
SPDLOG_INLINE log_msg::log_msg(string_view_t a_logger_name,
spdlog::level::level_enum lvl,
spdlog::string_view_t msg)
: log_msg(os::now(), source_loc{}, a_logger_name, lvl, msg) {}
} // namespace details
} // namespace spdlog

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// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
// Distributed under the MIT License (http://opensource.org/licenses/MIT)
#pragma once
#include <spdlog/common.h>
#include <string>
namespace spdlog {
namespace details {
struct SPDLOG_API log_msg {
log_msg() = default;
log_msg(log_clock::time_point log_time,
source_loc loc,
string_view_t logger_name,
level::level_enum lvl,
string_view_t msg);
log_msg(source_loc loc, string_view_t logger_name, level::level_enum lvl, string_view_t msg);
log_msg(string_view_t logger_name, level::level_enum lvl, string_view_t msg);
log_msg(const log_msg &other) = default;
log_msg &operator=(const log_msg &other) = default;
string_view_t logger_name;
level::level_enum level{level::off};
log_clock::time_point time;
size_t thread_id{0};
// wrapping the formatted text with color (updated by pattern_formatter).
mutable size_t color_range_start{0};
mutable size_t color_range_end{0};
source_loc source;
string_view_t payload;
};
} // namespace details
} // namespace spdlog
#ifdef SPDLOG_HEADER_ONLY
#include "log_msg-inl.h"
#endif

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// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
// Distributed under the MIT License (http://opensource.org/licenses/MIT)
#pragma once
#ifndef SPDLOG_HEADER_ONLY
#include <spdlog/details/log_msg_buffer.h>
#endif
namespace spdlog {
namespace details {
SPDLOG_INLINE log_msg_buffer::log_msg_buffer(const log_msg &orig_msg)
: log_msg{orig_msg} {
buffer.append(logger_name.begin(), logger_name.end());
buffer.append(payload.begin(), payload.end());
update_string_views();
}
SPDLOG_INLINE log_msg_buffer::log_msg_buffer(const log_msg_buffer &other)
: log_msg{other} {
buffer.append(logger_name.begin(), logger_name.end());
buffer.append(payload.begin(), payload.end());
update_string_views();
}
SPDLOG_INLINE log_msg_buffer::log_msg_buffer(log_msg_buffer &&other) SPDLOG_NOEXCEPT
: log_msg{other},
buffer{std::move(other.buffer)} {
update_string_views();
}
SPDLOG_INLINE log_msg_buffer &log_msg_buffer::operator=(const log_msg_buffer &other) {
log_msg::operator=(other);
buffer.clear();
buffer.append(other.buffer.data(), other.buffer.data() + other.buffer.size());
update_string_views();
return *this;
}
SPDLOG_INLINE log_msg_buffer &log_msg_buffer::operator=(log_msg_buffer &&other) SPDLOG_NOEXCEPT {
log_msg::operator=(other);
buffer = std::move(other.buffer);
update_string_views();
return *this;
}
SPDLOG_INLINE void log_msg_buffer::update_string_views() {
logger_name = string_view_t{buffer.data(), logger_name.size()};
payload = string_view_t{buffer.data() + logger_name.size(), payload.size()};
}
} // namespace details
} // namespace spdlog

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// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
// Distributed under the MIT License (http://opensource.org/licenses/MIT)
#pragma once
#include <spdlog/details/log_msg.h>
namespace spdlog {
namespace details {
// Extend log_msg with internal buffer to store its payload.
// This is needed since log_msg holds string_views that points to stack data.
class SPDLOG_API log_msg_buffer : public log_msg {
memory_buf_t buffer;
void update_string_views();
public:
log_msg_buffer() = default;
explicit log_msg_buffer(const log_msg &orig_msg);
log_msg_buffer(const log_msg_buffer &other);
log_msg_buffer(log_msg_buffer &&other) SPDLOG_NOEXCEPT;
log_msg_buffer &operator=(const log_msg_buffer &other);
log_msg_buffer &operator=(log_msg_buffer &&other) SPDLOG_NOEXCEPT;
};
} // namespace details
} // namespace spdlog
#ifdef SPDLOG_HEADER_ONLY
#include "log_msg_buffer-inl.h"
#endif

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// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
// Distributed under the MIT License (http://opensource.org/licenses/MIT)
#pragma once
// multi producer-multi consumer blocking queue.
// enqueue(..) - will block until room found to put the new message.
// enqueue_nowait(..) - will return immediately with false if no room left in
// the queue.
// dequeue_for(..) - will block until the queue is not empty or timeout have
// passed.
#include <spdlog/details/circular_q.h>
#include <atomic>
#include <condition_variable>
#include <mutex>
namespace spdlog {
namespace details {
template <typename T>
class mpmc_blocking_queue {
public:
using item_type = T;
explicit mpmc_blocking_queue(size_t max_items)
: q_(max_items) {}
#ifndef __MINGW32__
// try to enqueue and block if no room left
void enqueue(T &&item) {
{
std::unique_lock<std::mutex> lock(queue_mutex_);
pop_cv_.wait(lock, [this] { return !this->q_.full(); });
q_.push_back(std::move(item));
}
push_cv_.notify_one();
}
// enqueue immediately. overrun oldest message in the queue if no room left.
void enqueue_nowait(T &&item) {
{
std::unique_lock<std::mutex> lock(queue_mutex_);
q_.push_back(std::move(item));
}
push_cv_.notify_one();
}
void enqueue_if_have_room(T &&item) {
bool pushed = false;
{
std::unique_lock<std::mutex> lock(queue_mutex_);
if (!q_.full()) {
q_.push_back(std::move(item));
pushed = true;
}
}
if (pushed) {
push_cv_.notify_one();
} else {
++discard_counter_;
}
}
// dequeue with a timeout.
// Return true, if succeeded dequeue item, false otherwise
bool dequeue_for(T &popped_item, std::chrono::milliseconds wait_duration) {
{
std::unique_lock<std::mutex> lock(queue_mutex_);
if (!push_cv_.wait_for(lock, wait_duration, [this] { return !this->q_.empty(); })) {
return false;
}
popped_item = std::move(q_.front());
q_.pop_front();
}
pop_cv_.notify_one();
return true;
}
// blocking dequeue without a timeout.
void dequeue(T &popped_item) {
{
std::unique_lock<std::mutex> lock(queue_mutex_);
push_cv_.wait(lock, [this] { return !this->q_.empty(); });
popped_item = std::move(q_.front());
q_.pop_front();
}
pop_cv_.notify_one();
}
#else
// apparently mingw deadlocks if the mutex is released before cv.notify_one(),
// so release the mutex at the very end each function.
// try to enqueue and block if no room left
void enqueue(T &&item) {
std::unique_lock<std::mutex> lock(queue_mutex_);
pop_cv_.wait(lock, [this] { return !this->q_.full(); });
q_.push_back(std::move(item));
push_cv_.notify_one();
}
// enqueue immediately. overrun oldest message in the queue if no room left.
void enqueue_nowait(T &&item) {
std::unique_lock<std::mutex> lock(queue_mutex_);
q_.push_back(std::move(item));
push_cv_.notify_one();
}
void enqueue_if_have_room(T &&item) {
bool pushed = false;
std::unique_lock<std::mutex> lock(queue_mutex_);
if (!q_.full()) {
q_.push_back(std::move(item));
pushed = true;
}
if (pushed) {
push_cv_.notify_one();
} else {
++discard_counter_;
}
}
// dequeue with a timeout.
// Return true, if succeeded dequeue item, false otherwise
bool dequeue_for(T &popped_item, std::chrono::milliseconds wait_duration) {
std::unique_lock<std::mutex> lock(queue_mutex_);
if (!push_cv_.wait_for(lock, wait_duration, [this] { return !this->q_.empty(); })) {
return false;
}
popped_item = std::move(q_.front());
q_.pop_front();
pop_cv_.notify_one();
return true;
}
// blocking dequeue without a timeout.
void dequeue(T &popped_item) {
std::unique_lock<std::mutex> lock(queue_mutex_);
push_cv_.wait(lock, [this] { return !this->q_.empty(); });
popped_item = std::move(q_.front());
q_.pop_front();
pop_cv_.notify_one();
}
#endif
size_t overrun_counter() {
std::unique_lock<std::mutex> lock(queue_mutex_);
return q_.overrun_counter();
}
size_t discard_counter() { return discard_counter_.load(std::memory_order_relaxed); }
size_t size() {
std::unique_lock<std::mutex> lock(queue_mutex_);
return q_.size();
}
void reset_overrun_counter() {
std::unique_lock<std::mutex> lock(queue_mutex_);
q_.reset_overrun_counter();
}
void reset_discard_counter() { discard_counter_.store(0, std::memory_order_relaxed); }
private:
std::mutex queue_mutex_;
std::condition_variable push_cv_;
std::condition_variable pop_cv_;
spdlog::details::circular_q<T> q_;
std::atomic<size_t> discard_counter_{0};
};
} // namespace details
} // namespace spdlog

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// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
// Distributed under the MIT License (http://opensource.org/licenses/MIT)
#pragma once
#include <atomic>
#include <utility>
// null, no cost dummy "mutex" and dummy "atomic" int
namespace spdlog {
namespace details {
struct null_mutex {
void lock() const {}
void unlock() const {}
};
struct null_atomic_int {
int value;
null_atomic_int() = default;
explicit null_atomic_int(int new_value)
: value(new_value) {}
int load(std::memory_order = std::memory_order_relaxed) const { return value; }
void store(int new_value, std::memory_order = std::memory_order_relaxed) { value = new_value; }
int exchange(int new_value, std::memory_order = std::memory_order_relaxed) {
std::swap(new_value, value);
return new_value; // return value before the call
}
};
} // namespace details
} // namespace spdlog

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// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
// Distributed under the MIT License (http://opensource.org/licenses/MIT)
#pragma once
#ifndef SPDLOG_HEADER_ONLY
#include <spdlog/details/os.h>
#endif
#include <spdlog/common.h>
#include <algorithm>
#include <array>
#include <chrono>
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <ctime>
#include <string>
#include <sys/stat.h>
#include <sys/types.h>
#include <thread>
#ifdef _WIN32
#include <spdlog/details/windows_include.h>
#include <fileapi.h> // for FlushFileBuffers
#include <io.h> // for _get_osfhandle, _isatty, _fileno
#include <process.h> // for _get_pid
#ifdef __MINGW32__
#include <share.h>
#endif
#if defined(SPDLOG_WCHAR_TO_UTF8_SUPPORT) || defined(SPDLOG_WCHAR_FILENAMES)
#include <cassert>
#include <limits>
#endif
#include <direct.h> // for _mkdir/_wmkdir
#else // unix
#include <fcntl.h>
#include <unistd.h>
#ifdef __linux__
#include <sys/syscall.h> //Use gettid() syscall under linux to get thread id
#elif defined(_AIX)
#include <pthread.h> // for pthread_getthrds_np
#elif defined(__DragonFly__) || defined(__FreeBSD__)
#include <pthread_np.h> // for pthread_getthreadid_np
#elif defined(__NetBSD__)
#include <lwp.h> // for _lwp_self
#elif defined(__sun)
#include <thread.h> // for thr_self
#endif
#endif // unix
#if defined __APPLE__
#include <AvailabilityMacros.h>
#endif
#ifndef __has_feature // Clang - feature checking macros.
#define __has_feature(x) 0 // Compatibility with non-clang compilers.
#endif
namespace spdlog {
namespace details {
namespace os {
SPDLOG_INLINE spdlog::log_clock::time_point now() SPDLOG_NOEXCEPT {
#if defined __linux__ && defined SPDLOG_CLOCK_COARSE
timespec ts;
::clock_gettime(CLOCK_REALTIME_COARSE, &ts);
return std::chrono::time_point<log_clock, typename log_clock::duration>(
std::chrono::duration_cast<typename log_clock::duration>(
std::chrono::seconds(ts.tv_sec) + std::chrono::nanoseconds(ts.tv_nsec)));
#else
return log_clock::now();
#endif
}
SPDLOG_INLINE std::tm localtime(const std::time_t &time_tt) SPDLOG_NOEXCEPT {
#ifdef _WIN32
std::tm tm;
::localtime_s(&tm, &time_tt);
#else
std::tm tm;
::localtime_r(&time_tt, &tm);
#endif
return tm;
}
SPDLOG_INLINE std::tm localtime() SPDLOG_NOEXCEPT {
std::time_t now_t = ::time(nullptr);
return localtime(now_t);
}
SPDLOG_INLINE std::tm gmtime(const std::time_t &time_tt) SPDLOG_NOEXCEPT {
#ifdef _WIN32
std::tm tm;
::gmtime_s(&tm, &time_tt);
#else
std::tm tm;
::gmtime_r(&time_tt, &tm);
#endif
return tm;
}
SPDLOG_INLINE std::tm gmtime() SPDLOG_NOEXCEPT {
std::time_t now_t = ::time(nullptr);
return gmtime(now_t);
}
// fopen_s on non windows for writing
SPDLOG_INLINE bool fopen_s(FILE **fp, const filename_t &filename, const filename_t &mode) {
#ifdef _WIN32
#ifdef SPDLOG_WCHAR_FILENAMES
*fp = ::_wfsopen((filename.c_str()), mode.c_str(), _SH_DENYNO);
#else
*fp = ::_fsopen((filename.c_str()), mode.c_str(), _SH_DENYNO);
#endif
#if defined(SPDLOG_PREVENT_CHILD_FD)
if (*fp != nullptr) {
auto file_handle = reinterpret_cast<HANDLE>(_get_osfhandle(::_fileno(*fp)));
if (!::SetHandleInformation(file_handle, HANDLE_FLAG_INHERIT, 0)) {
::fclose(*fp);
*fp = nullptr;
}
}
#endif
#else // unix
#if defined(SPDLOG_PREVENT_CHILD_FD)
const int mode_flag = mode == SPDLOG_FILENAME_T("ab") ? O_APPEND : O_TRUNC;
const int fd =
::open((filename.c_str()), O_CREAT | O_WRONLY | O_CLOEXEC | mode_flag, mode_t(0644));
if (fd == -1) {
return true;
}
*fp = ::fdopen(fd, mode.c_str());
if (*fp == nullptr) {
::close(fd);
}
#else
*fp = ::fopen((filename.c_str()), mode.c_str());
#endif
#endif
return *fp == nullptr;
}
SPDLOG_INLINE int remove(const filename_t &filename) SPDLOG_NOEXCEPT {
#if defined(_WIN32) && defined(SPDLOG_WCHAR_FILENAMES)
return ::_wremove(filename.c_str());
#else
return std::remove(filename.c_str());
#endif
}
SPDLOG_INLINE int remove_if_exists(const filename_t &filename) SPDLOG_NOEXCEPT {
return path_exists(filename) ? remove(filename) : 0;
}
SPDLOG_INLINE int rename(const filename_t &filename1, const filename_t &filename2) SPDLOG_NOEXCEPT {
#if defined(_WIN32) && defined(SPDLOG_WCHAR_FILENAMES)
return ::_wrename(filename1.c_str(), filename2.c_str());
#else
return std::rename(filename1.c_str(), filename2.c_str());
#endif
}
// Return true if path exists (file or directory)
SPDLOG_INLINE bool path_exists(const filename_t &filename) SPDLOG_NOEXCEPT {
#ifdef _WIN32
struct _stat buffer;
#ifdef SPDLOG_WCHAR_FILENAMES
return (::_wstat(filename.c_str(), &buffer) == 0);
#else
return (::_stat(filename.c_str(), &buffer) == 0);
#endif
#else // common linux/unix all have the stat system call
struct stat buffer;
return (::stat(filename.c_str(), &buffer) == 0);
#endif
}
#ifdef _MSC_VER
// avoid warning about unreachable statement at the end of filesize()
#pragma warning(push)
#pragma warning(disable : 4702)
#endif
// Return file size according to open FILE* object
SPDLOG_INLINE size_t filesize(FILE *f) {
if (f == nullptr) {
throw_spdlog_ex("Failed getting file size. fd is null");
}
#if defined(_WIN32) && !defined(__CYGWIN__)
int fd = ::_fileno(f);
#if defined(_WIN64) // 64 bits
__int64 ret = ::_filelengthi64(fd);
if (ret >= 0) {
return static_cast<size_t>(ret);
}
#else // windows 32 bits
long ret = ::_filelength(fd);
if (ret >= 0) {
return static_cast<size_t>(ret);
}
#endif
#else // unix
// OpenBSD and AIX doesn't compile with :: before the fileno(..)
#if defined(__OpenBSD__) || defined(_AIX)
int fd = fileno(f);
#else
int fd = ::fileno(f);
#endif
// 64 bits(but not in osx, linux/musl or cygwin, where fstat64 is deprecated)
#if ((defined(__linux__) && defined(__GLIBC__)) || defined(__sun) || defined(_AIX)) && \
(defined(__LP64__) || defined(_LP64))
struct stat64 st;
if (::fstat64(fd, &st) == 0) {
return static_cast<size_t>(st.st_size);
}
#else // other unix or linux 32 bits or cygwin
struct stat st;
if (::fstat(fd, &st) == 0) {
return static_cast<size_t>(st.st_size);
}
#endif
#endif
throw_spdlog_ex("Failed getting file size from fd", errno);
return 0; // will not be reached.
}
#ifdef _MSC_VER
#pragma warning(pop)
#endif
// Return utc offset in minutes or throw spdlog_ex on failure
SPDLOG_INLINE int utc_minutes_offset(const std::tm &tm) {
#ifdef _WIN32
#if _WIN32_WINNT < _WIN32_WINNT_WS08
TIME_ZONE_INFORMATION tzinfo;
auto rv = ::GetTimeZoneInformation(&tzinfo);
#else
DYNAMIC_TIME_ZONE_INFORMATION tzinfo;
auto rv = ::GetDynamicTimeZoneInformation(&tzinfo);
#endif
if (rv == TIME_ZONE_ID_INVALID) throw_spdlog_ex("Failed getting timezone info. ", errno);
int offset = -tzinfo.Bias;
if (tm.tm_isdst) {
offset -= tzinfo.DaylightBias;
} else {
offset -= tzinfo.StandardBias;
}
return offset;
#else
#if defined(sun) || defined(__sun) || defined(_AIX) || \
(defined(__NEWLIB__) && !defined(__TM_GMTOFF)) || \
(!defined(_BSD_SOURCE) && !defined(_GNU_SOURCE))
// 'tm_gmtoff' field is BSD extension and it's missing on SunOS/Solaris
struct helper {
static long int calculate_gmt_offset(const std::tm &localtm = details::os::localtime(),
const std::tm &gmtm = details::os::gmtime()) {
int local_year = localtm.tm_year + (1900 - 1);
int gmt_year = gmtm.tm_year + (1900 - 1);
long int days = (
// difference in day of year
localtm.tm_yday -
gmtm.tm_yday
// + intervening leap days
+ ((local_year >> 2) - (gmt_year >> 2)) - (local_year / 100 - gmt_year / 100) +
((local_year / 100 >> 2) - (gmt_year / 100 >> 2))
// + difference in years * 365 */
+ static_cast<long int>(local_year - gmt_year) * 365);
long int hours = (24 * days) + (localtm.tm_hour - gmtm.tm_hour);
long int mins = (60 * hours) + (localtm.tm_min - gmtm.tm_min);
long int secs = (60 * mins) + (localtm.tm_sec - gmtm.tm_sec);
return secs;
}
};
auto offset_seconds = helper::calculate_gmt_offset(tm);
#else
auto offset_seconds = tm.tm_gmtoff;
#endif
return static_cast<int>(offset_seconds / 60);
#endif
}
// Return current thread id as size_t
// It exists because the std::this_thread::get_id() is much slower(especially
// under VS 2013)
SPDLOG_INLINE size_t _thread_id() SPDLOG_NOEXCEPT {
#ifdef _WIN32
return static_cast<size_t>(::GetCurrentThreadId());
#elif defined(__linux__)
#if defined(__ANDROID__) && defined(__ANDROID_API__) && (__ANDROID_API__ < 21)
#define SYS_gettid __NR_gettid
#endif
return static_cast<size_t>(::syscall(SYS_gettid));
#elif defined(_AIX)
struct __pthrdsinfo buf;
int reg_size = 0;
pthread_t pt = pthread_self();
int retval = pthread_getthrds_np(&pt, PTHRDSINFO_QUERY_TID, &buf, sizeof(buf), NULL, &reg_size);
int tid = (!retval) ? buf.__pi_tid : 0;
return static_cast<size_t>(tid);
#elif defined(__DragonFly__) || defined(__FreeBSD__)
return static_cast<size_t>(::pthread_getthreadid_np());
#elif defined(__NetBSD__)
return static_cast<size_t>(::_lwp_self());
#elif defined(__OpenBSD__)
return static_cast<size_t>(::getthrid());
#elif defined(__sun)
return static_cast<size_t>(::thr_self());
#elif __APPLE__
uint64_t tid;
// There is no pthread_threadid_np prior to Mac OS X 10.6, and it is not supported on any PPC,
// including 10.6.8 Rosetta. __POWERPC__ is Apple-specific define encompassing ppc and ppc64.
#ifdef MAC_OS_X_VERSION_MAX_ALLOWED
{
#if (MAC_OS_X_VERSION_MAX_ALLOWED < 1060) || defined(__POWERPC__)
tid = pthread_mach_thread_np(pthread_self());
#elif MAC_OS_X_VERSION_MIN_REQUIRED < 1060
if (&pthread_threadid_np) {
pthread_threadid_np(nullptr, &tid);
} else {
tid = pthread_mach_thread_np(pthread_self());
}
#else
pthread_threadid_np(nullptr, &tid);
#endif
}
#else
pthread_threadid_np(nullptr, &tid);
#endif
return static_cast<size_t>(tid);
#else // Default to standard C++11 (other Unix)
return static_cast<size_t>(std::hash<std::thread::id>()(std::this_thread::get_id()));
#endif
}
// Return current thread id as size_t (from thread local storage)
SPDLOG_INLINE size_t thread_id() SPDLOG_NOEXCEPT {
#if defined(SPDLOG_NO_TLS)
return _thread_id();
#else // cache thread id in tls
static thread_local const size_t tid = _thread_id();
return tid;
#endif
}
// This is avoid msvc issue in sleep_for that happens if the clock changes.
// See https://github.com/gabime/spdlog/issues/609
SPDLOG_INLINE void sleep_for_millis(unsigned int milliseconds) SPDLOG_NOEXCEPT {
#if defined(_WIN32)
::Sleep(milliseconds);
#else
std::this_thread::sleep_for(std::chrono::milliseconds(milliseconds));
#endif
}
// wchar support for windows file names (SPDLOG_WCHAR_FILENAMES must be defined)
#if defined(_WIN32) && defined(SPDLOG_WCHAR_FILENAMES)
SPDLOG_INLINE std::string filename_to_str(const filename_t &filename) {
memory_buf_t buf;
wstr_to_utf8buf(filename, buf);
return SPDLOG_BUF_TO_STRING(buf);
}
#else
SPDLOG_INLINE std::string filename_to_str(const filename_t &filename) { return filename; }
#endif
SPDLOG_INLINE int pid() SPDLOG_NOEXCEPT {
#ifdef _WIN32
return conditional_static_cast<int>(::GetCurrentProcessId());
#else
return conditional_static_cast<int>(::getpid());
#endif
}
// Determine if the terminal supports colors
// Based on: https://github.com/agauniyal/rang/
SPDLOG_INLINE bool is_color_terminal() SPDLOG_NOEXCEPT {
#ifdef _WIN32
return true;
#else
static const bool result = []() {
const char *env_colorterm_p = std::getenv("COLORTERM");
if (env_colorterm_p != nullptr) {
return true;
}
static constexpr std::array<const char *, 16> terms = {
{"ansi", "color", "console", "cygwin", "gnome", "konsole", "kterm", "linux", "msys",
"putty", "rxvt", "screen", "vt100", "xterm", "alacritty", "vt102"}};
const char *env_term_p = std::getenv("TERM");
if (env_term_p == nullptr) {
return false;
}
return std::any_of(terms.begin(), terms.end(), [&](const char *term) {
return std::strstr(env_term_p, term) != nullptr;
});
}();
return result;
#endif
}
// Determine if the terminal attached
// Source: https://github.com/agauniyal/rang/
SPDLOG_INLINE bool in_terminal(FILE *file) SPDLOG_NOEXCEPT {
#ifdef _WIN32
return ::_isatty(_fileno(file)) != 0;
#else
return ::isatty(fileno(file)) != 0;
#endif
}
#if (defined(SPDLOG_WCHAR_TO_UTF8_SUPPORT) || defined(SPDLOG_WCHAR_FILENAMES)) && defined(_WIN32)
SPDLOG_INLINE void wstr_to_utf8buf(wstring_view_t wstr, memory_buf_t &target) {
if (wstr.size() > static_cast<size_t>((std::numeric_limits<int>::max)()) / 4 - 1) {
throw_spdlog_ex("UTF-16 string is too big to be converted to UTF-8");
}
int wstr_size = static_cast<int>(wstr.size());
if (wstr_size == 0) {
target.resize(0);
return;
}
int result_size = static_cast<int>(target.capacity());
if ((wstr_size + 1) * 4 > result_size) {
result_size =
::WideCharToMultiByte(CP_UTF8, 0, wstr.data(), wstr_size, NULL, 0, NULL, NULL);
}
if (result_size > 0) {
target.resize(result_size);
result_size = ::WideCharToMultiByte(CP_UTF8, 0, wstr.data(), wstr_size, target.data(),
result_size, NULL, NULL);
if (result_size > 0) {
target.resize(result_size);
return;
}
}
throw_spdlog_ex(
fmt_lib::format("WideCharToMultiByte failed. Last error: {}", ::GetLastError()));
}
SPDLOG_INLINE void utf8_to_wstrbuf(string_view_t str, wmemory_buf_t &target) {
if (str.size() > static_cast<size_t>((std::numeric_limits<int>::max)()) - 1) {
throw_spdlog_ex("UTF-8 string is too big to be converted to UTF-16");
}
int str_size = static_cast<int>(str.size());
if (str_size == 0) {
target.resize(0);
return;
}
// find the size to allocate for the result buffer
int result_size =
::MultiByteToWideChar(CP_UTF8, MB_ERR_INVALID_CHARS, str.data(), str_size, NULL, 0);
if (result_size > 0) {
target.resize(result_size);
result_size = ::MultiByteToWideChar(CP_UTF8, MB_ERR_INVALID_CHARS, str.data(), str_size,
target.data(), result_size);
if (result_size > 0) {
assert(result_size == target.size());
return;
}
}
throw_spdlog_ex(
fmt_lib::format("MultiByteToWideChar failed. Last error: {}", ::GetLastError()));
}
#endif // (defined(SPDLOG_WCHAR_TO_UTF8_SUPPORT) || defined(SPDLOG_WCHAR_FILENAMES)) &&
// defined(_WIN32)
// return true on success
static SPDLOG_INLINE bool mkdir_(const filename_t &path) {
#ifdef _WIN32
#ifdef SPDLOG_WCHAR_FILENAMES
return ::_wmkdir(path.c_str()) == 0;
#else
return ::_mkdir(path.c_str()) == 0;
#endif
#else
return ::mkdir(path.c_str(), mode_t(0755)) == 0;
#endif
}
// create the given directory - and all directories leading to it
// return true on success or if the directory already exists
SPDLOG_INLINE bool create_dir(const filename_t &path) {
if (path_exists(path)) {
return true;
}
if (path.empty()) {
return false;
}
size_t search_offset = 0;
do {
auto token_pos = path.find_first_of(folder_seps_filename, search_offset);
// treat the entire path as a folder if no folder separator not found
if (token_pos == filename_t::npos) {
token_pos = path.size();
}
auto subdir = path.substr(0, token_pos);
#ifdef _WIN32
// if subdir is just a drive letter, add a slash e.g. "c:"=>"c:\",
// otherwise path_exists(subdir) returns false (issue #3079)
const bool is_drive = subdir.length() == 2 && subdir[1] == ':';
if (is_drive) {
subdir += '\\';
token_pos++;
}
#endif
if (!subdir.empty() && !path_exists(subdir) && !mkdir_(subdir)) {
return false; // return error if failed creating dir
}
search_offset = token_pos + 1;
} while (search_offset < path.size());
return true;
}
// Return directory name from given path or empty string
// "abc/file" => "abc"
// "abc/" => "abc"
// "abc" => ""
// "abc///" => "abc//"
SPDLOG_INLINE filename_t dir_name(const filename_t &path) {
auto pos = path.find_last_of(folder_seps_filename);
return pos != filename_t::npos ? path.substr(0, pos) : filename_t{};
}
std::string SPDLOG_INLINE getenv(const char *field) {
#if defined(_MSC_VER)
#if defined(__cplusplus_winrt)
return std::string{}; // not supported under uwp
#else
size_t len = 0;
char buf[128];
bool ok = ::getenv_s(&len, buf, sizeof(buf), field) == 0;
return ok ? buf : std::string{};
#endif
#else // revert to getenv
char *buf = ::getenv(field);
return buf ? buf : std::string{};
#endif
}
// Do fsync by FILE handlerpointer
// Return true on success
SPDLOG_INLINE bool fsync(FILE *fp) {
#ifdef _WIN32
return FlushFileBuffers(reinterpret_cast<HANDLE>(_get_osfhandle(_fileno(fp)))) != 0;
#else
return ::fsync(fileno(fp)) == 0;
#endif
}
} // namespace os
} // namespace details
} // namespace spdlog

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// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
// Distributed under the MIT License (http://opensource.org/licenses/MIT)
#pragma once
#include <ctime> // std::time_t
#include <spdlog/common.h>
namespace spdlog {
namespace details {
namespace os {
SPDLOG_API spdlog::log_clock::time_point now() SPDLOG_NOEXCEPT;
SPDLOG_API std::tm localtime(const std::time_t &time_tt) SPDLOG_NOEXCEPT;
SPDLOG_API std::tm localtime() SPDLOG_NOEXCEPT;
SPDLOG_API std::tm gmtime(const std::time_t &time_tt) SPDLOG_NOEXCEPT;
SPDLOG_API std::tm gmtime() SPDLOG_NOEXCEPT;
// eol definition
#if !defined(SPDLOG_EOL)
#ifdef _WIN32
#define SPDLOG_EOL "\r\n"
#else
#define SPDLOG_EOL "\n"
#endif
#endif
SPDLOG_CONSTEXPR static const char *default_eol = SPDLOG_EOL;
// folder separator
#if !defined(SPDLOG_FOLDER_SEPS)
#ifdef _WIN32
#define SPDLOG_FOLDER_SEPS "\\/"
#else
#define SPDLOG_FOLDER_SEPS "/"
#endif
#endif
SPDLOG_CONSTEXPR static const char folder_seps[] = SPDLOG_FOLDER_SEPS;
SPDLOG_CONSTEXPR static const filename_t::value_type folder_seps_filename[] =
SPDLOG_FILENAME_T(SPDLOG_FOLDER_SEPS);
// fopen_s on non windows for writing
SPDLOG_API bool fopen_s(FILE **fp, const filename_t &filename, const filename_t &mode);
// Remove filename. return 0 on success
SPDLOG_API int remove(const filename_t &filename) SPDLOG_NOEXCEPT;
// Remove file if exists. return 0 on success
// Note: Non atomic (might return failure to delete if concurrently deleted by other process/thread)
SPDLOG_API int remove_if_exists(const filename_t &filename) SPDLOG_NOEXCEPT;
SPDLOG_API int rename(const filename_t &filename1, const filename_t &filename2) SPDLOG_NOEXCEPT;
// Return if file exists.
SPDLOG_API bool path_exists(const filename_t &filename) SPDLOG_NOEXCEPT;
// Return file size according to open FILE* object
SPDLOG_API size_t filesize(FILE *f);
// Return utc offset in minutes or throw spdlog_ex on failure
SPDLOG_API int utc_minutes_offset(const std::tm &tm = details::os::localtime());
// Return current thread id as size_t
// It exists because the std::this_thread::get_id() is much slower(especially
// under VS 2013)
SPDLOG_API size_t _thread_id() SPDLOG_NOEXCEPT;
// Return current thread id as size_t (from thread local storage)
SPDLOG_API size_t thread_id() SPDLOG_NOEXCEPT;
// This is avoid msvc issue in sleep_for that happens if the clock changes.
// See https://github.com/gabime/spdlog/issues/609
SPDLOG_API void sleep_for_millis(unsigned int milliseconds) SPDLOG_NOEXCEPT;
SPDLOG_API std::string filename_to_str(const filename_t &filename);
SPDLOG_API int pid() SPDLOG_NOEXCEPT;
// Determine if the terminal supports colors
// Source: https://github.com/agauniyal/rang/
SPDLOG_API bool is_color_terminal() SPDLOG_NOEXCEPT;
// Determine if the terminal attached
// Source: https://github.com/agauniyal/rang/
SPDLOG_API bool in_terminal(FILE *file) SPDLOG_NOEXCEPT;
#if (defined(SPDLOG_WCHAR_TO_UTF8_SUPPORT) || defined(SPDLOG_WCHAR_FILENAMES)) && defined(_WIN32)
SPDLOG_API void wstr_to_utf8buf(wstring_view_t wstr, memory_buf_t &target);
SPDLOG_API void utf8_to_wstrbuf(string_view_t str, wmemory_buf_t &target);
#endif
// Return directory name from given path or empty string
// "abc/file" => "abc"
// "abc/" => "abc"
// "abc" => ""
// "abc///" => "abc//"
SPDLOG_API filename_t dir_name(const filename_t &path);
// Create a dir from the given path.
// Return true if succeeded or if this dir already exists.
SPDLOG_API bool create_dir(const filename_t &path);
// non thread safe, cross platform getenv/getenv_s
// return empty string if field not found
SPDLOG_API std::string getenv(const char *field);
// Do fsync by FILE objectpointer.
// Return true on success.
SPDLOG_API bool fsync(FILE *fp);
} // namespace os
} // namespace details
} // namespace spdlog
#ifdef SPDLOG_HEADER_ONLY
#include "os-inl.h"
#endif

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// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
// Distributed under the MIT License (http://opensource.org/licenses/MIT)
#pragma once
#ifndef SPDLOG_HEADER_ONLY
#include <spdlog/details/periodic_worker.h>
#endif
namespace spdlog {
namespace details {
// stop the worker thread and join it
SPDLOG_INLINE periodic_worker::~periodic_worker() {
if (worker_thread_.joinable()) {
{
std::lock_guard<std::mutex> lock(mutex_);
active_ = false;
}
cv_.notify_one();
worker_thread_.join();
}
}
} // namespace details
} // namespace spdlog

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// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
// Distributed under the MIT License (http://opensource.org/licenses/MIT)
#pragma once
// periodic worker thread - periodically executes the given callback function.
//
// RAII over the owned thread:
// creates the thread on construction.
// stops and joins the thread on destruction (if the thread is executing a callback, wait for it
// to finish first).
#include <chrono>
#include <condition_variable>
#include <functional>
#include <mutex>
#include <thread>
namespace spdlog {
namespace details {
class SPDLOG_API periodic_worker {
public:
template <typename Rep, typename Period>
periodic_worker(const std::function<void()> &callback_fun,
std::chrono::duration<Rep, Period> interval) {
active_ = (interval > std::chrono::duration<Rep, Period>::zero());
if (!active_) {
return;
}
worker_thread_ = std::thread([this, callback_fun, interval]() {
for (;;) {
std::unique_lock<std::mutex> lock(this->mutex_);
if (this->cv_.wait_for(lock, interval, [this] { return !this->active_; })) {
return; // active_ == false, so exit this thread
}
callback_fun();
}
});
}
std::thread &get_thread() { return worker_thread_; }
periodic_worker(const periodic_worker &) = delete;
periodic_worker &operator=(const periodic_worker &) = delete;
// stop the worker thread and join it
~periodic_worker();
private:
bool active_;
std::thread worker_thread_;
std::mutex mutex_;
std::condition_variable cv_;
};
} // namespace details
} // namespace spdlog
#ifdef SPDLOG_HEADER_ONLY
#include "periodic_worker-inl.h"
#endif

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// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
// Distributed under the MIT License (http://opensource.org/licenses/MIT)
#pragma once
#ifndef SPDLOG_HEADER_ONLY
#include <spdlog/details/registry.h>
#endif
#include <spdlog/common.h>
#include <spdlog/details/periodic_worker.h>
#include <spdlog/logger.h>
#include <spdlog/pattern_formatter.h>
#ifndef SPDLOG_DISABLE_DEFAULT_LOGGER
// support for the default stdout color logger
#ifdef _WIN32
#include <spdlog/sinks/wincolor_sink.h>
#else
#include <spdlog/sinks/ansicolor_sink.h>
#endif
#endif // SPDLOG_DISABLE_DEFAULT_LOGGER
#include <chrono>
#include <functional>
#include <memory>
#include <string>
#include <unordered_map>
namespace spdlog {
namespace details {
SPDLOG_INLINE registry::registry()
: formatter_(new pattern_formatter()) {
#ifndef SPDLOG_DISABLE_DEFAULT_LOGGER
// create default logger (ansicolor_stdout_sink_mt or wincolor_stdout_sink_mt in windows).
#ifdef _WIN32
auto color_sink = std::make_shared<sinks::wincolor_stdout_sink_mt>();
#else
auto color_sink = std::make_shared<sinks::ansicolor_stdout_sink_mt>();
#endif
const char *default_logger_name = "";
default_logger_ = std::make_shared<spdlog::logger>(default_logger_name, std::move(color_sink));
loggers_[default_logger_name] = default_logger_;
#endif // SPDLOG_DISABLE_DEFAULT_LOGGER
}
SPDLOG_INLINE registry::~registry() = default;
SPDLOG_INLINE void registry::register_logger(std::shared_ptr<logger> new_logger) {
std::lock_guard<std::mutex> lock(logger_map_mutex_);
register_logger_(std::move(new_logger));
}
SPDLOG_INLINE void registry::initialize_logger(std::shared_ptr<logger> new_logger) {
std::lock_guard<std::mutex> lock(logger_map_mutex_);
new_logger->set_formatter(formatter_->clone());
if (err_handler_) {
new_logger->set_error_handler(err_handler_);
}
// set new level according to previously configured level or default level
auto it = log_levels_.find(new_logger->name());
auto new_level = it != log_levels_.end() ? it->second : global_log_level_;
new_logger->set_level(new_level);
new_logger->flush_on(flush_level_);
if (backtrace_n_messages_ > 0) {
new_logger->enable_backtrace(backtrace_n_messages_);
}
if (automatic_registration_) {
register_logger_(std::move(new_logger));
}
}
SPDLOG_INLINE std::shared_ptr<logger> registry::get(const std::string &logger_name) {
std::lock_guard<std::mutex> lock(logger_map_mutex_);
auto found = loggers_.find(logger_name);
return found == loggers_.end() ? nullptr : found->second;
}
SPDLOG_INLINE std::shared_ptr<logger> registry::default_logger() {
std::lock_guard<std::mutex> lock(logger_map_mutex_);
return default_logger_;
}
// Return raw ptr to the default logger.
// To be used directly by the spdlog default api (e.g. spdlog::info)
// This make the default API faster, but cannot be used concurrently with set_default_logger().
// e.g do not call set_default_logger() from one thread while calling spdlog::info() from another.
SPDLOG_INLINE logger *registry::get_default_raw() { return default_logger_.get(); }
// set default logger.
// default logger is stored in default_logger_ (for faster retrieval) and in the loggers_ map.
SPDLOG_INLINE void registry::set_default_logger(std::shared_ptr<logger> new_default_logger) {
std::lock_guard<std::mutex> lock(logger_map_mutex_);
if (new_default_logger != nullptr) {
loggers_[new_default_logger->name()] = new_default_logger;
}
default_logger_ = std::move(new_default_logger);
}
SPDLOG_INLINE void registry::set_tp(std::shared_ptr<thread_pool> tp) {
std::lock_guard<std::recursive_mutex> lock(tp_mutex_);
tp_ = std::move(tp);
}
SPDLOG_INLINE std::shared_ptr<thread_pool> registry::get_tp() {
std::lock_guard<std::recursive_mutex> lock(tp_mutex_);
return tp_;
}
// Set global formatter. Each sink in each logger will get a clone of this object
SPDLOG_INLINE void registry::set_formatter(std::unique_ptr<formatter> formatter) {
std::lock_guard<std::mutex> lock(logger_map_mutex_);
formatter_ = std::move(formatter);
for (auto &l : loggers_) {
l.second->set_formatter(formatter_->clone());
}
}
SPDLOG_INLINE void registry::enable_backtrace(size_t n_messages) {
std::lock_guard<std::mutex> lock(logger_map_mutex_);
backtrace_n_messages_ = n_messages;
for (auto &l : loggers_) {
l.second->enable_backtrace(n_messages);
}
}
SPDLOG_INLINE void registry::disable_backtrace() {
std::lock_guard<std::mutex> lock(logger_map_mutex_);
backtrace_n_messages_ = 0;
for (auto &l : loggers_) {
l.second->disable_backtrace();
}
}
SPDLOG_INLINE void registry::set_level(level::level_enum log_level) {
std::lock_guard<std::mutex> lock(logger_map_mutex_);
for (auto &l : loggers_) {
l.second->set_level(log_level);
}
global_log_level_ = log_level;
}
SPDLOG_INLINE void registry::flush_on(level::level_enum log_level) {
std::lock_guard<std::mutex> lock(logger_map_mutex_);
for (auto &l : loggers_) {
l.second->flush_on(log_level);
}
flush_level_ = log_level;
}
SPDLOG_INLINE void registry::set_error_handler(err_handler handler) {
std::lock_guard<std::mutex> lock(logger_map_mutex_);
for (auto &l : loggers_) {
l.second->set_error_handler(handler);
}
err_handler_ = std::move(handler);
}
SPDLOG_INLINE void registry::apply_all(
const std::function<void(const std::shared_ptr<logger>)> &fun) {
std::lock_guard<std::mutex> lock(logger_map_mutex_);
for (auto &l : loggers_) {
fun(l.second);
}
}
SPDLOG_INLINE void registry::flush_all() {
std::lock_guard<std::mutex> lock(logger_map_mutex_);
for (auto &l : loggers_) {
l.second->flush();
}
}
SPDLOG_INLINE void registry::drop(const std::string &logger_name) {
std::lock_guard<std::mutex> lock(logger_map_mutex_);
auto is_default_logger = default_logger_ && default_logger_->name() == logger_name;
loggers_.erase(logger_name);
if (is_default_logger) {
default_logger_.reset();
}
}
SPDLOG_INLINE void registry::drop_all() {
std::lock_guard<std::mutex> lock(logger_map_mutex_);
loggers_.clear();
default_logger_.reset();
}
// clean all resources and threads started by the registry
SPDLOG_INLINE void registry::shutdown() {
{
std::lock_guard<std::mutex> lock(flusher_mutex_);
periodic_flusher_.reset();
}
drop_all();
{
std::lock_guard<std::recursive_mutex> lock(tp_mutex_);
tp_.reset();
}
}
SPDLOG_INLINE std::recursive_mutex &registry::tp_mutex() { return tp_mutex_; }
SPDLOG_INLINE void registry::set_automatic_registration(bool automatic_registration) {
std::lock_guard<std::mutex> lock(logger_map_mutex_);
automatic_registration_ = automatic_registration;
}
SPDLOG_INLINE void registry::set_levels(log_levels levels, level::level_enum *global_level) {
std::lock_guard<std::mutex> lock(logger_map_mutex_);
log_levels_ = std::move(levels);
auto global_level_requested = global_level != nullptr;
global_log_level_ = global_level_requested ? *global_level : global_log_level_;
for (auto &logger : loggers_) {
auto logger_entry = log_levels_.find(logger.first);
if (logger_entry != log_levels_.end()) {
logger.second->set_level(logger_entry->second);
} else if (global_level_requested) {
logger.second->set_level(*global_level);
}
}
}
SPDLOG_INLINE registry &registry::instance() {
static registry s_instance;
return s_instance;
}
SPDLOG_INLINE void registry::apply_logger_env_levels(std::shared_ptr<logger> new_logger) {
std::lock_guard<std::mutex> lock(logger_map_mutex_);
auto it = log_levels_.find(new_logger->name());
auto new_level = it != log_levels_.end() ? it->second : global_log_level_;
new_logger->set_level(new_level);
}
SPDLOG_INLINE void registry::throw_if_exists_(const std::string &logger_name) {
if (loggers_.find(logger_name) != loggers_.end()) {
throw_spdlog_ex("logger with name '" + logger_name + "' already exists");
}
}
SPDLOG_INLINE void registry::register_logger_(std::shared_ptr<logger> new_logger) {
auto logger_name = new_logger->name();
throw_if_exists_(logger_name);
loggers_[logger_name] = std::move(new_logger);
}
} // namespace details
} // namespace spdlog

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// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
// Distributed under the MIT License (http://opensource.org/licenses/MIT)
#pragma once
// Loggers registry of unique name->logger pointer
// An attempt to create a logger with an already existing name will result with spdlog_ex exception.
// If user requests a non existing logger, nullptr will be returned
// This class is thread safe
#include <spdlog/common.h>
#include <spdlog/details/periodic_worker.h>
#include <chrono>
#include <functional>
#include <memory>
#include <mutex>
#include <string>
#include <unordered_map>
namespace spdlog {
class logger;
namespace details {
class thread_pool;
class SPDLOG_API registry {
public:
using log_levels = std::unordered_map<std::string, level::level_enum>;
registry(const registry &) = delete;
registry &operator=(const registry &) = delete;
void register_logger(std::shared_ptr<logger> new_logger);
void initialize_logger(std::shared_ptr<logger> new_logger);
std::shared_ptr<logger> get(const std::string &logger_name);
std::shared_ptr<logger> default_logger();
// Return raw ptr to the default logger.
// To be used directly by the spdlog default api (e.g. spdlog::info)
// This make the default API faster, but cannot be used concurrently with set_default_logger().
// e.g do not call set_default_logger() from one thread while calling spdlog::info() from
// another.
logger *get_default_raw();
// set default logger and add it to the registry if not registered already.
// default logger is stored in default_logger_ (for faster retrieval) and in the loggers_ map.
// Note: Make sure to unregister it when no longer needed or before calling again with a new
// logger.
void set_default_logger(std::shared_ptr<logger> new_default_logger);
void set_tp(std::shared_ptr<thread_pool> tp);
std::shared_ptr<thread_pool> get_tp();
// Set global formatter. Each sink in each logger will get a clone of this object
void set_formatter(std::unique_ptr<formatter> formatter);
void enable_backtrace(size_t n_messages);
void disable_backtrace();
void set_level(level::level_enum log_level);
void flush_on(level::level_enum log_level);
template <typename Rep, typename Period>
void flush_every(std::chrono::duration<Rep, Period> interval) {
std::lock_guard<std::mutex> lock(flusher_mutex_);
auto clbk = [this]() { this->flush_all(); };
periodic_flusher_ = details::make_unique<periodic_worker>(clbk, interval);
}
std::unique_ptr<periodic_worker> &get_flusher() {
std::lock_guard<std::mutex> lock(flusher_mutex_);
return periodic_flusher_;
}
void set_error_handler(err_handler handler);
void apply_all(const std::function<void(const std::shared_ptr<logger>)> &fun);
void flush_all();
void drop(const std::string &logger_name);
void drop_all();
// clean all resources and threads started by the registry
void shutdown();
std::recursive_mutex &tp_mutex();
void set_automatic_registration(bool automatic_registration);
// set levels for all existing/future loggers. global_level can be null if should not set.
void set_levels(log_levels levels, level::level_enum *global_level);
static registry &instance();
void apply_logger_env_levels(std::shared_ptr<logger> new_logger);
private:
registry();
~registry();
void throw_if_exists_(const std::string &logger_name);
void register_logger_(std::shared_ptr<logger> new_logger);
bool set_level_from_cfg_(logger *logger);
std::mutex logger_map_mutex_, flusher_mutex_;
std::recursive_mutex tp_mutex_;
std::unordered_map<std::string, std::shared_ptr<logger>> loggers_;
log_levels log_levels_;
std::unique_ptr<formatter> formatter_;
spdlog::level::level_enum global_log_level_ = level::info;
level::level_enum flush_level_ = level::off;
err_handler err_handler_;
std::shared_ptr<thread_pool> tp_;
std::unique_ptr<periodic_worker> periodic_flusher_;
std::shared_ptr<logger> default_logger_;
bool automatic_registration_ = true;
size_t backtrace_n_messages_ = 0;
};
} // namespace details
} // namespace spdlog
#ifdef SPDLOG_HEADER_ONLY
#include "registry-inl.h"
#endif

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// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
// Distributed under the MIT License (http://opensource.org/licenses/MIT)
#pragma once
#include "registry.h"
namespace spdlog {
// Default logger factory- creates synchronous loggers
class logger;
struct synchronous_factory {
template <typename Sink, typename... SinkArgs>
static std::shared_ptr<spdlog::logger> create(std::string logger_name, SinkArgs &&...args) {
auto sink = std::make_shared<Sink>(std::forward<SinkArgs>(args)...);
auto new_logger = std::make_shared<spdlog::logger>(std::move(logger_name), std::move(sink));
details::registry::instance().initialize_logger(new_logger);
return new_logger;
}
};
} // namespace spdlog

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// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
// Distributed under the MIT License (http://opensource.org/licenses/MIT)
#pragma once
#define WIN32_LEAN_AND_MEAN
// tcp client helper
#include <spdlog/common.h>
#include <spdlog/details/os.h>
#include <stdio.h>
#include <stdlib.h>
#include <string>
#include <windows.h>
#include <winsock2.h>
#include <ws2tcpip.h>
#pragma comment(lib, "Ws2_32.lib")
#pragma comment(lib, "Mswsock.lib")
#pragma comment(lib, "AdvApi32.lib")
namespace spdlog {
namespace details {
class tcp_client {
SOCKET socket_ = INVALID_SOCKET;
static void init_winsock_() {
WSADATA wsaData;
auto rv = WSAStartup(MAKEWORD(2, 2), &wsaData);
if (rv != 0) {
throw_winsock_error_("WSAStartup failed", ::WSAGetLastError());
}
}
static void throw_winsock_error_(const std::string &msg, int last_error) {
char buf[512];
::FormatMessageA(FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS, NULL,
last_error, MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), buf,
(sizeof(buf) / sizeof(char)), NULL);
throw_spdlog_ex(fmt_lib::format("tcp_sink - {}: {}", msg, buf));
}
public:
tcp_client() { init_winsock_(); }
~tcp_client() {
close();
::WSACleanup();
}
bool is_connected() const { return socket_ != INVALID_SOCKET; }
void close() {
::closesocket(socket_);
socket_ = INVALID_SOCKET;
}
SOCKET fd() const { return socket_; }
// try to connect or throw on failure
void connect(const std::string &host, int port) {
if (is_connected()) {
close();
}
struct addrinfo hints {};
ZeroMemory(&hints, sizeof(hints));
hints.ai_family = AF_UNSPEC; // To work with IPv4, IPv6, and so on
hints.ai_socktype = SOCK_STREAM; // TCP
hints.ai_flags = AI_NUMERICSERV; // port passed as as numeric value
hints.ai_protocol = 0;
auto port_str = std::to_string(port);
struct addrinfo *addrinfo_result;
auto rv = ::getaddrinfo(host.c_str(), port_str.c_str(), &hints, &addrinfo_result);
int last_error = 0;
if (rv != 0) {
last_error = ::WSAGetLastError();
WSACleanup();
throw_winsock_error_("getaddrinfo failed", last_error);
}
// Try each address until we successfully connect(2).
for (auto *rp = addrinfo_result; rp != nullptr; rp = rp->ai_next) {
socket_ = socket(rp->ai_family, rp->ai_socktype, rp->ai_protocol);
if (socket_ == INVALID_SOCKET) {
last_error = ::WSAGetLastError();
WSACleanup();
continue;
}
if (::connect(socket_, rp->ai_addr, (int)rp->ai_addrlen) == 0) {
break;
} else {
last_error = ::WSAGetLastError();
close();
}
}
::freeaddrinfo(addrinfo_result);
if (socket_ == INVALID_SOCKET) {
WSACleanup();
throw_winsock_error_("connect failed", last_error);
}
// set TCP_NODELAY
int enable_flag = 1;
::setsockopt(socket_, IPPROTO_TCP, TCP_NODELAY, reinterpret_cast<char *>(&enable_flag),
sizeof(enable_flag));
}
// Send exactly n_bytes of the given data.
// On error close the connection and throw.
void send(const char *data, size_t n_bytes) {
size_t bytes_sent = 0;
while (bytes_sent < n_bytes) {
const int send_flags = 0;
auto write_result =
::send(socket_, data + bytes_sent, (int)(n_bytes - bytes_sent), send_flags);
if (write_result == SOCKET_ERROR) {
int last_error = ::WSAGetLastError();
close();
throw_winsock_error_("send failed", last_error);
}
if (write_result == 0) // (probably should not happen but in any case..)
{
break;
}
bytes_sent += static_cast<size_t>(write_result);
}
}
};
} // namespace details
} // namespace spdlog

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// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
// Distributed under the MIT License (http://opensource.org/licenses/MIT)
#pragma once
#ifdef _WIN32
#error include tcp_client-windows.h instead
#endif
// tcp client helper
#include <spdlog/common.h>
#include <spdlog/details/os.h>
#include <arpa/inet.h>
#include <netdb.h>
#include <netinet/in.h>
#include <netinet/tcp.h>
#include <sys/socket.h>
#include <unistd.h>
#include <string>
namespace spdlog {
namespace details {
class tcp_client {
int socket_ = -1;
public:
bool is_connected() const { return socket_ != -1; }
void close() {
if (is_connected()) {
::close(socket_);
socket_ = -1;
}
}
int fd() const { return socket_; }
~tcp_client() { close(); }
// try to connect or throw on failure
void connect(const std::string &host, int port) {
close();
struct addrinfo hints {};
memset(&hints, 0, sizeof(struct addrinfo));
hints.ai_family = AF_UNSPEC; // To work with IPv4, IPv6, and so on
hints.ai_socktype = SOCK_STREAM; // TCP
hints.ai_flags = AI_NUMERICSERV; // port passed as as numeric value
hints.ai_protocol = 0;
auto port_str = std::to_string(port);
struct addrinfo *addrinfo_result;
auto rv = ::getaddrinfo(host.c_str(), port_str.c_str(), &hints, &addrinfo_result);
if (rv != 0) {
throw_spdlog_ex(fmt_lib::format("::getaddrinfo failed: {}", gai_strerror(rv)));
}
// Try each address until we successfully connect(2).
int last_errno = 0;
for (auto *rp = addrinfo_result; rp != nullptr; rp = rp->ai_next) {
#if defined(SOCK_CLOEXEC)
const int flags = SOCK_CLOEXEC;
#else
const int flags = 0;
#endif
socket_ = ::socket(rp->ai_family, rp->ai_socktype | flags, rp->ai_protocol);
if (socket_ == -1) {
last_errno = errno;
continue;
}
rv = ::connect(socket_, rp->ai_addr, rp->ai_addrlen);
if (rv == 0) {
break;
}
last_errno = errno;
::close(socket_);
socket_ = -1;
}
::freeaddrinfo(addrinfo_result);
if (socket_ == -1) {
throw_spdlog_ex("::connect failed", last_errno);
}
// set TCP_NODELAY
int enable_flag = 1;
::setsockopt(socket_, IPPROTO_TCP, TCP_NODELAY, reinterpret_cast<char *>(&enable_flag),
sizeof(enable_flag));
// prevent sigpipe on systems where MSG_NOSIGNAL is not available
#if defined(SO_NOSIGPIPE) && !defined(MSG_NOSIGNAL)
::setsockopt(socket_, SOL_SOCKET, SO_NOSIGPIPE, reinterpret_cast<char *>(&enable_flag),
sizeof(enable_flag));
#endif
#if !defined(SO_NOSIGPIPE) && !defined(MSG_NOSIGNAL)
#error "tcp_sink would raise SIGPIPE since neither SO_NOSIGPIPE nor MSG_NOSIGNAL are available"
#endif
}
// Send exactly n_bytes of the given data.
// On error close the connection and throw.
void send(const char *data, size_t n_bytes) {
size_t bytes_sent = 0;
while (bytes_sent < n_bytes) {
#if defined(MSG_NOSIGNAL)
const int send_flags = MSG_NOSIGNAL;
#else
const int send_flags = 0;
#endif
auto write_result =
::send(socket_, data + bytes_sent, n_bytes - bytes_sent, send_flags);
if (write_result < 0) {
close();
throw_spdlog_ex("write(2) failed", errno);
}
if (write_result == 0) // (probably should not happen but in any case..)
{
break;
}
bytes_sent += static_cast<size_t>(write_result);
}
}
};
} // namespace details
} // namespace spdlog

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// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
// Distributed under the MIT License (http://opensource.org/licenses/MIT)
#pragma once
#ifndef SPDLOG_HEADER_ONLY
#include <spdlog/details/thread_pool.h>
#endif
#include <cassert>
#include <spdlog/common.h>
namespace spdlog {
namespace details {
SPDLOG_INLINE thread_pool::thread_pool(size_t q_max_items,
size_t threads_n,
std::function<void()> on_thread_start,
std::function<void()> on_thread_stop)
: q_(q_max_items) {
if (threads_n == 0 || threads_n > 1000) {
throw_spdlog_ex(
"spdlog::thread_pool(): invalid threads_n param (valid "
"range is 1-1000)");
}
for (size_t i = 0; i < threads_n; i++) {
threads_.emplace_back([this, on_thread_start, on_thread_stop] {
on_thread_start();
this->thread_pool::worker_loop_();
on_thread_stop();
});
}
}
SPDLOG_INLINE thread_pool::thread_pool(size_t q_max_items,
size_t threads_n,
std::function<void()> on_thread_start)
: thread_pool(q_max_items, threads_n, on_thread_start, [] {}) {}
SPDLOG_INLINE thread_pool::thread_pool(size_t q_max_items, size_t threads_n)
: thread_pool(
q_max_items, threads_n, [] {}, [] {}) {}
// message all threads to terminate gracefully join them
SPDLOG_INLINE thread_pool::~thread_pool() {
SPDLOG_TRY {
for (size_t i = 0; i < threads_.size(); i++) {
post_async_msg_(async_msg(async_msg_type::terminate), async_overflow_policy::block);
}
for (auto &t : threads_) {
t.join();
}
}
SPDLOG_CATCH_STD
}
void SPDLOG_INLINE thread_pool::post_log(async_logger_ptr &&worker_ptr,
const details::log_msg &msg,
async_overflow_policy overflow_policy) {
async_msg async_m(std::move(worker_ptr), async_msg_type::log, msg);
post_async_msg_(std::move(async_m), overflow_policy);
}
std::future<void> SPDLOG_INLINE thread_pool::post_flush(async_logger_ptr &&worker_ptr,
async_overflow_policy overflow_policy) {
std::promise<void> promise;
std::future<void> future = promise.get_future();
post_async_msg_(async_msg(std::move(worker_ptr), async_msg_type::flush, std::move(promise)),
overflow_policy);
return future;
}
size_t SPDLOG_INLINE thread_pool::overrun_counter() { return q_.overrun_counter(); }
void SPDLOG_INLINE thread_pool::reset_overrun_counter() { q_.reset_overrun_counter(); }
size_t SPDLOG_INLINE thread_pool::discard_counter() { return q_.discard_counter(); }
void SPDLOG_INLINE thread_pool::reset_discard_counter() { q_.reset_discard_counter(); }
size_t SPDLOG_INLINE thread_pool::queue_size() { return q_.size(); }
void SPDLOG_INLINE thread_pool::post_async_msg_(async_msg &&new_msg,
async_overflow_policy overflow_policy) {
if (overflow_policy == async_overflow_policy::block) {
q_.enqueue(std::move(new_msg));
} else if (overflow_policy == async_overflow_policy::overrun_oldest) {
q_.enqueue_nowait(std::move(new_msg));
} else {
assert(overflow_policy == async_overflow_policy::discard_new);
q_.enqueue_if_have_room(std::move(new_msg));
}
}
void SPDLOG_INLINE thread_pool::worker_loop_() {
while (process_next_msg_()) {
}
}
// process next message in the queue
// return true if this thread should still be active (while no terminate msg
// was received)
bool SPDLOG_INLINE thread_pool::process_next_msg_() {
async_msg incoming_async_msg;
q_.dequeue(incoming_async_msg);
switch (incoming_async_msg.msg_type) {
case async_msg_type::log: {
incoming_async_msg.worker_ptr->backend_sink_it_(incoming_async_msg);
return true;
}
case async_msg_type::flush: {
incoming_async_msg.worker_ptr->backend_flush_();
incoming_async_msg.flush_promise.set_value();
return true;
}
case async_msg_type::terminate: {
return false;
}
default: {
assert(false);
}
}
return true;
}
} // namespace details
} // namespace spdlog

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// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
// Distributed under the MIT License (http://opensource.org/licenses/MIT)
#pragma once
#include <spdlog/details/log_msg_buffer.h>
#include <spdlog/details/mpmc_blocking_q.h>
#include <spdlog/details/os.h>
#include <chrono>
#include <functional>
#include <future>
#include <memory>
#include <thread>
#include <vector>
namespace spdlog {
class async_logger;
namespace details {
using async_logger_ptr = std::shared_ptr<spdlog::async_logger>;
enum class async_msg_type { log, flush, terminate };
// Async msg to move to/from the queue
// Movable only. should never be copied
struct async_msg : log_msg_buffer {
async_msg_type msg_type{async_msg_type::log};
async_logger_ptr worker_ptr;
std::promise<void> flush_promise;
async_msg() = default;
~async_msg() = default;
// should only be moved in or out of the queue..
async_msg(const async_msg &) = delete;
// support for vs2013 move
#if defined(_MSC_VER) && _MSC_VER <= 1800
async_msg(async_msg &&other)
: log_msg_buffer(std::move(other)),
msg_type(other.msg_type),
worker_ptr(std::move(other.worker_ptr)) {}
async_msg &operator=(async_msg &&other) {
*static_cast<log_msg_buffer *>(this) = std::move(other);
msg_type = other.msg_type;
worker_ptr = std::move(other.worker_ptr);
return *this;
}
#else // (_MSC_VER) && _MSC_VER <= 1800
async_msg(async_msg &&) = default;
async_msg &operator=(async_msg &&) = default;
#endif
// construct from log_msg with given type
async_msg(async_logger_ptr &&worker, async_msg_type the_type, const details::log_msg &m)
: log_msg_buffer{m},
msg_type{the_type},
worker_ptr{std::move(worker)},
flush_promise{} {}
async_msg(async_logger_ptr &&worker, async_msg_type the_type)
: log_msg_buffer{},
msg_type{the_type},
worker_ptr{std::move(worker)},
flush_promise{} {}
async_msg(async_logger_ptr &&worker, async_msg_type the_type, std::promise<void> &&promise)
: log_msg_buffer{},
msg_type{the_type},
worker_ptr{std::move(worker)},
flush_promise{std::move(promise)} {}
explicit async_msg(async_msg_type the_type)
: async_msg{nullptr, the_type} {}
};
class SPDLOG_API thread_pool {
public:
using item_type = async_msg;
using q_type = details::mpmc_blocking_queue<item_type>;
thread_pool(size_t q_max_items,
size_t threads_n,
std::function<void()> on_thread_start,
std::function<void()> on_thread_stop);
thread_pool(size_t q_max_items, size_t threads_n, std::function<void()> on_thread_start);
thread_pool(size_t q_max_items, size_t threads_n);
// message all threads to terminate gracefully and join them
~thread_pool();
thread_pool(const thread_pool &) = delete;
thread_pool &operator=(thread_pool &&) = delete;
void post_log(async_logger_ptr &&worker_ptr,
const details::log_msg &msg,
async_overflow_policy overflow_policy);
std::future<void> post_flush(async_logger_ptr &&worker_ptr,
async_overflow_policy overflow_policy);
size_t overrun_counter();
void reset_overrun_counter();
size_t discard_counter();
void reset_discard_counter();
size_t queue_size();
private:
q_type q_;
std::vector<std::thread> threads_;
void post_async_msg_(async_msg &&new_msg, async_overflow_policy overflow_policy);
void worker_loop_();
// process next message in the queue
// return true if this thread should still be active (while no terminate msg
// was received)
bool process_next_msg_();
};
} // namespace details
} // namespace spdlog
#ifdef SPDLOG_HEADER_ONLY
#include "thread_pool-inl.h"
#endif

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// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
// Distributed under the MIT License (http://opensource.org/licenses/MIT)
#pragma once
// Helper RAII over winsock udp client socket.
// Will throw on construction if socket creation failed.
#include <spdlog/common.h>
#include <spdlog/details/os.h>
#include <spdlog/details/windows_include.h>
#include <stdio.h>
#include <stdlib.h>
#include <string>
#include <winsock2.h>
#include <ws2tcpip.h>
#if defined(_MSC_VER)
#pragma comment(lib, "Ws2_32.lib")
#pragma comment(lib, "Mswsock.lib")
#pragma comment(lib, "AdvApi32.lib")
#endif
namespace spdlog {
namespace details {
class udp_client {
static constexpr int TX_BUFFER_SIZE = 1024 * 10;
SOCKET socket_ = INVALID_SOCKET;
sockaddr_in addr_ = {};
static void init_winsock_() {
WSADATA wsaData;
auto rv = ::WSAStartup(MAKEWORD(2, 2), &wsaData);
if (rv != 0) {
throw_winsock_error_("WSAStartup failed", ::WSAGetLastError());
}
}
static void throw_winsock_error_(const std::string &msg, int last_error) {
char buf[512];
::FormatMessageA(FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS, NULL,
last_error, MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), buf,
(sizeof(buf) / sizeof(char)), NULL);
throw_spdlog_ex(fmt_lib::format("udp_sink - {}: {}", msg, buf));
}
void cleanup_() {
if (socket_ != INVALID_SOCKET) {
::closesocket(socket_);
}
socket_ = INVALID_SOCKET;
::WSACleanup();
}
public:
udp_client(const std::string &host, uint16_t port) {
init_winsock_();
addr_.sin_family = PF_INET;
addr_.sin_port = htons(port);
addr_.sin_addr.s_addr = INADDR_ANY;
if (InetPtonA(PF_INET, host.c_str(), &addr_.sin_addr.s_addr) != 1) {
int last_error = ::WSAGetLastError();
::WSACleanup();
throw_winsock_error_("error: Invalid address!", last_error);
}
socket_ = ::socket(PF_INET, SOCK_DGRAM, 0);
if (socket_ == INVALID_SOCKET) {
int last_error = ::WSAGetLastError();
::WSACleanup();
throw_winsock_error_("error: Create Socket failed", last_error);
}
int option_value = TX_BUFFER_SIZE;
if (::setsockopt(socket_, SOL_SOCKET, SO_SNDBUF,
reinterpret_cast<const char *>(&option_value), sizeof(option_value)) < 0) {
int last_error = ::WSAGetLastError();
cleanup_();
throw_winsock_error_("error: setsockopt(SO_SNDBUF) Failed!", last_error);
}
}
~udp_client() { cleanup_(); }
SOCKET fd() const { return socket_; }
void send(const char *data, size_t n_bytes) {
socklen_t tolen = sizeof(struct sockaddr);
if (::sendto(socket_, data, static_cast<int>(n_bytes), 0, (struct sockaddr *)&addr_,
tolen) == -1) {
throw_spdlog_ex("sendto(2) failed", errno);
}
}
};
} // namespace details
} // namespace spdlog

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// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
// Distributed under the MIT License (http://opensource.org/licenses/MIT)
#pragma once
// Helper RAII over unix udp client socket.
// Will throw on construction if the socket creation failed.
#ifdef _WIN32
#error "include udp_client-windows.h instead"
#endif
#include <arpa/inet.h>
#include <cstring>
#include <netdb.h>
#include <netinet/in.h>
#include <netinet/udp.h>
#include <spdlog/common.h>
#include <spdlog/details/os.h>
#include <sys/socket.h>
#include <unistd.h>
#include <string>
namespace spdlog {
namespace details {
class udp_client {
static constexpr int TX_BUFFER_SIZE = 1024 * 10;
int socket_ = -1;
struct sockaddr_in sockAddr_;
void cleanup_() {
if (socket_ != -1) {
::close(socket_);
socket_ = -1;
}
}
public:
udp_client(const std::string &host, uint16_t port) {
socket_ = ::socket(PF_INET, SOCK_DGRAM, 0);
if (socket_ < 0) {
throw_spdlog_ex("error: Create Socket Failed!");
}
int option_value = TX_BUFFER_SIZE;
if (::setsockopt(socket_, SOL_SOCKET, SO_SNDBUF,
reinterpret_cast<const char *>(&option_value), sizeof(option_value)) < 0) {
cleanup_();
throw_spdlog_ex("error: setsockopt(SO_SNDBUF) Failed!");
}
sockAddr_.sin_family = AF_INET;
sockAddr_.sin_port = htons(port);
if (::inet_aton(host.c_str(), &sockAddr_.sin_addr) == 0) {
cleanup_();
throw_spdlog_ex("error: Invalid address!");
}
::memset(sockAddr_.sin_zero, 0x00, sizeof(sockAddr_.sin_zero));
}
~udp_client() { cleanup_(); }
int fd() const { return socket_; }
// Send exactly n_bytes of the given data.
// On error close the connection and throw.
void send(const char *data, size_t n_bytes) {
ssize_t toslen = 0;
socklen_t tolen = sizeof(struct sockaddr);
if ((toslen = ::sendto(socket_, data, n_bytes, 0, (struct sockaddr *)&sockAddr_, tolen)) ==
-1) {
throw_spdlog_ex("sendto(2) failed", errno);
}
}
};
} // namespace details
} // namespace spdlog

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#pragma once
#ifndef NOMINMAX
#define NOMINMAX // prevent windows redefining min/max
#endif
#ifndef WIN32_LEAN_AND_MEAN
#define WIN32_LEAN_AND_MEAN
#endif
#include <windows.h>

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//
// Copyright(c) 2015 Gabi Melman.
// Distributed under the MIT License (http://opensource.org/licenses/MIT)
//
#pragma once
#include <cctype>
#include <spdlog/common.h>
#if defined(__has_include)
#if __has_include(<version>)
#include <version>
#endif
#endif
#if __cpp_lib_span >= 202002L
#include <span>
#endif
//
// Support for logging binary data as hex
// format flags, any combination of the following:
// {:X} - print in uppercase.
// {:s} - don't separate each byte with space.
// {:p} - don't print the position on each line start.
// {:n} - don't split the output to lines.
// {:a} - show ASCII if :n is not set
//
// Examples:
//
// std::vector<char> v(200, 0x0b);
// logger->info("Some buffer {}", spdlog::to_hex(v));
// char buf[128];
// logger->info("Some buffer {:X}", spdlog::to_hex(std::begin(buf), std::end(buf)));
// logger->info("Some buffer {:X}", spdlog::to_hex(std::begin(buf), std::end(buf), 16));
namespace spdlog {
namespace details {
template <typename It>
class dump_info {
public:
dump_info(It range_begin, It range_end, size_t size_per_line)
: begin_(range_begin),
end_(range_end),
size_per_line_(size_per_line) {}
// do not use begin() and end() to avoid collision with fmt/ranges
It get_begin() const { return begin_; }
It get_end() const { return end_; }
size_t size_per_line() const { return size_per_line_; }
private:
It begin_, end_;
size_t size_per_line_;
};
} // namespace details
// create a dump_info that wraps the given container
template <typename Container>
inline details::dump_info<typename Container::const_iterator> to_hex(const Container &container,
size_t size_per_line = 32) {
static_assert(sizeof(typename Container::value_type) == 1,
"sizeof(Container::value_type) != 1");
using Iter = typename Container::const_iterator;
return details::dump_info<Iter>(std::begin(container), std::end(container), size_per_line);
}
#if __cpp_lib_span >= 202002L
template <typename Value, size_t Extent>
inline details::dump_info<typename std::span<Value, Extent>::iterator> to_hex(
const std::span<Value, Extent> &container, size_t size_per_line = 32) {
using Container = std::span<Value, Extent>;
static_assert(sizeof(typename Container::value_type) == 1,
"sizeof(Container::value_type) != 1");
using Iter = typename Container::iterator;
return details::dump_info<Iter>(std::begin(container), std::end(container), size_per_line);
}
#endif
// create dump_info from ranges
template <typename It>
inline details::dump_info<It> to_hex(const It range_begin,
const It range_end,
size_t size_per_line = 32) {
return details::dump_info<It>(range_begin, range_end, size_per_line);
}
} // namespace spdlog
namespace
#ifdef SPDLOG_USE_STD_FORMAT
std
#else
fmt
#endif
{
template <typename T>
struct formatter<spdlog::details::dump_info<T>, char> {
const char delimiter = ' ';
bool put_newlines = true;
bool put_delimiters = true;
bool use_uppercase = false;
bool put_positions = true; // position on start of each line
bool show_ascii = false;
// parse the format string flags
template <typename ParseContext>
SPDLOG_CONSTEXPR_FUNC auto parse(ParseContext &ctx) -> decltype(ctx.begin()) {
auto it = ctx.begin();
while (it != ctx.end() && *it != '}') {
switch (*it) {
case 'X':
use_uppercase = true;
break;
case 's':
put_delimiters = false;
break;
case 'p':
put_positions = false;
break;
case 'n':
put_newlines = false;
show_ascii = false;
break;
case 'a':
if (put_newlines) {
show_ascii = true;
}
break;
}
++it;
}
return it;
}
// format the given bytes range as hex
template <typename FormatContext, typename Container>
auto format(const spdlog::details::dump_info<Container> &the_range, FormatContext &ctx) const
-> decltype(ctx.out()) {
SPDLOG_CONSTEXPR const char *hex_upper = "0123456789ABCDEF";
SPDLOG_CONSTEXPR const char *hex_lower = "0123456789abcdef";
const char *hex_chars = use_uppercase ? hex_upper : hex_lower;
#if !defined(SPDLOG_USE_STD_FORMAT) && FMT_VERSION < 60000
auto inserter = ctx.begin();
#else
auto inserter = ctx.out();
#endif
int size_per_line = static_cast<int>(the_range.size_per_line());
auto start_of_line = the_range.get_begin();
for (auto i = the_range.get_begin(); i != the_range.get_end(); i++) {
auto ch = static_cast<unsigned char>(*i);
if (put_newlines &&
(i == the_range.get_begin() || i - start_of_line >= size_per_line)) {
if (show_ascii && i != the_range.get_begin()) {
*inserter++ = delimiter;
*inserter++ = delimiter;
for (auto j = start_of_line; j < i; j++) {
auto pc = static_cast<unsigned char>(*j);
*inserter++ = std::isprint(pc) ? static_cast<char>(*j) : '.';
}
}
put_newline(inserter, static_cast<size_t>(i - the_range.get_begin()));
// put first byte without delimiter in front of it
*inserter++ = hex_chars[(ch >> 4) & 0x0f];
*inserter++ = hex_chars[ch & 0x0f];
start_of_line = i;
continue;
}
if (put_delimiters && i != the_range.get_begin()) {
*inserter++ = delimiter;
}
*inserter++ = hex_chars[(ch >> 4) & 0x0f];
*inserter++ = hex_chars[ch & 0x0f];
}
if (show_ascii) // add ascii to last line
{
if (the_range.get_end() - the_range.get_begin() > size_per_line) {
auto blank_num = size_per_line - (the_range.get_end() - start_of_line);
while (blank_num-- > 0) {
*inserter++ = delimiter;
*inserter++ = delimiter;
if (put_delimiters) {
*inserter++ = delimiter;
}
}
}
*inserter++ = delimiter;
*inserter++ = delimiter;
for (auto j = start_of_line; j != the_range.get_end(); j++) {
auto pc = static_cast<unsigned char>(*j);
*inserter++ = std::isprint(pc) ? static_cast<char>(*j) : '.';
}
}
return inserter;
}
// put newline(and position header)
template <typename It>
void put_newline(It inserter, std::size_t pos) const {
#ifdef _WIN32
*inserter++ = '\r';
#endif
*inserter++ = '\n';
if (put_positions) {
spdlog::fmt_lib::format_to(inserter, SPDLOG_FMT_STRING("{:04X}: "), pos);
}
}
};
} // namespace std

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// Formatting library for C++ - dynamic argument lists
//
// Copyright (c) 2012 - present, Victor Zverovich
// All rights reserved.
//
// For the license information refer to format.h.
#ifndef FMT_ARGS_H_
#define FMT_ARGS_H_
#include <functional> // std::reference_wrapper
#include <memory> // std::unique_ptr
#include <vector>
#include "core.h"
FMT_BEGIN_NAMESPACE
namespace detail {
template <typename T> struct is_reference_wrapper : std::false_type {};
template <typename T>
struct is_reference_wrapper<std::reference_wrapper<T>> : std::true_type {};
template <typename T> auto unwrap(const T& v) -> const T& { return v; }
template <typename T>
auto unwrap(const std::reference_wrapper<T>& v) -> const T& {
return static_cast<const T&>(v);
}
class dynamic_arg_list {
// Workaround for clang's -Wweak-vtables. Unlike for regular classes, for
// templates it doesn't complain about inability to deduce single translation
// unit for placing vtable. So storage_node_base is made a fake template.
template <typename = void> struct node {
virtual ~node() = default;
std::unique_ptr<node<>> next;
};
template <typename T> struct typed_node : node<> {
T value;
template <typename Arg>
FMT_CONSTEXPR typed_node(const Arg& arg) : value(arg) {}
template <typename Char>
FMT_CONSTEXPR typed_node(const basic_string_view<Char>& arg)
: value(arg.data(), arg.size()) {}
};
std::unique_ptr<node<>> head_;
public:
template <typename T, typename Arg> auto push(const Arg& arg) -> const T& {
auto new_node = std::unique_ptr<typed_node<T>>(new typed_node<T>(arg));
auto& value = new_node->value;
new_node->next = std::move(head_);
head_ = std::move(new_node);
return value;
}
};
} // namespace detail
/**
\rst
A dynamic version of `fmt::format_arg_store`.
It's equipped with a storage to potentially temporary objects which lifetimes
could be shorter than the format arguments object.
It can be implicitly converted into `~fmt::basic_format_args` for passing
into type-erased formatting functions such as `~fmt::vformat`.
\endrst
*/
template <typename Context>
class dynamic_format_arg_store
#if FMT_GCC_VERSION && FMT_GCC_VERSION < 409
// Workaround a GCC template argument substitution bug.
: public basic_format_args<Context>
#endif
{
private:
using char_type = typename Context::char_type;
template <typename T> struct need_copy {
static constexpr detail::type mapped_type =
detail::mapped_type_constant<T, Context>::value;
enum {
value = !(detail::is_reference_wrapper<T>::value ||
std::is_same<T, basic_string_view<char_type>>::value ||
std::is_same<T, detail::std_string_view<char_type>>::value ||
(mapped_type != detail::type::cstring_type &&
mapped_type != detail::type::string_type &&
mapped_type != detail::type::custom_type))
};
};
template <typename T>
using stored_type = conditional_t<
std::is_convertible<T, std::basic_string<char_type>>::value &&
!detail::is_reference_wrapper<T>::value,
std::basic_string<char_type>, T>;
// Storage of basic_format_arg must be contiguous.
std::vector<basic_format_arg<Context>> data_;
std::vector<detail::named_arg_info<char_type>> named_info_;
// Storage of arguments not fitting into basic_format_arg must grow
// without relocation because items in data_ refer to it.
detail::dynamic_arg_list dynamic_args_;
friend class basic_format_args<Context>;
auto get_types() const -> unsigned long long {
return detail::is_unpacked_bit | data_.size() |
(named_info_.empty()
? 0ULL
: static_cast<unsigned long long>(detail::has_named_args_bit));
}
auto data() const -> const basic_format_arg<Context>* {
return named_info_.empty() ? data_.data() : data_.data() + 1;
}
template <typename T> void emplace_arg(const T& arg) {
data_.emplace_back(detail::make_arg<Context>(arg));
}
template <typename T>
void emplace_arg(const detail::named_arg<char_type, T>& arg) {
if (named_info_.empty()) {
constexpr const detail::named_arg_info<char_type>* zero_ptr{nullptr};
data_.insert(data_.begin(), {zero_ptr, 0});
}
data_.emplace_back(detail::make_arg<Context>(detail::unwrap(arg.value)));
auto pop_one = [](std::vector<basic_format_arg<Context>>* data) {
data->pop_back();
};
std::unique_ptr<std::vector<basic_format_arg<Context>>, decltype(pop_one)>
guard{&data_, pop_one};
named_info_.push_back({arg.name, static_cast<int>(data_.size() - 2u)});
data_[0].value_.named_args = {named_info_.data(), named_info_.size()};
guard.release();
}
public:
constexpr dynamic_format_arg_store() = default;
/**
\rst
Adds an argument into the dynamic store for later passing to a formatting
function.
Note that custom types and string types (but not string views) are copied
into the store dynamically allocating memory if necessary.
**Example**::
fmt::dynamic_format_arg_store<fmt::format_context> store;
store.push_back(42);
store.push_back("abc");
store.push_back(1.5f);
std::string result = fmt::vformat("{} and {} and {}", store);
\endrst
*/
template <typename T> void push_back(const T& arg) {
if (detail::const_check(need_copy<T>::value))
emplace_arg(dynamic_args_.push<stored_type<T>>(arg));
else
emplace_arg(detail::unwrap(arg));
}
/**
\rst
Adds a reference to the argument into the dynamic store for later passing to
a formatting function.
**Example**::
fmt::dynamic_format_arg_store<fmt::format_context> store;
char band[] = "Rolling Stones";
store.push_back(std::cref(band));
band[9] = 'c'; // Changing str affects the output.
std::string result = fmt::vformat("{}", store);
// result == "Rolling Scones"
\endrst
*/
template <typename T> void push_back(std::reference_wrapper<T> arg) {
static_assert(
need_copy<T>::value,
"objects of built-in types and string views are always copied");
emplace_arg(arg.get());
}
/**
Adds named argument into the dynamic store for later passing to a formatting
function. ``std::reference_wrapper`` is supported to avoid copying of the
argument. The name is always copied into the store.
*/
template <typename T>
void push_back(const detail::named_arg<char_type, T>& arg) {
const char_type* arg_name =
dynamic_args_.push<std::basic_string<char_type>>(arg.name).c_str();
if (detail::const_check(need_copy<T>::value)) {
emplace_arg(
fmt::arg(arg_name, dynamic_args_.push<stored_type<T>>(arg.value)));
} else {
emplace_arg(fmt::arg(arg_name, arg.value));
}
}
/** Erase all elements from the store */
void clear() {
data_.clear();
named_info_.clear();
dynamic_args_ = detail::dynamic_arg_list();
}
/**
\rst
Reserves space to store at least *new_cap* arguments including
*new_cap_named* named arguments.
\endrst
*/
void reserve(size_t new_cap, size_t new_cap_named) {
FMT_ASSERT(new_cap >= new_cap_named,
"Set of arguments includes set of named arguments");
data_.reserve(new_cap);
named_info_.reserve(new_cap_named);
}
};
FMT_END_NAMESPACE
#endif // FMT_ARGS_H_

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// Formatting library for C++ - color support
//
// Copyright (c) 2018 - present, Victor Zverovich and fmt contributors
// All rights reserved.
//
// For the license information refer to format.h.
#ifndef FMT_COLOR_H_
#define FMT_COLOR_H_
#include "format.h"
FMT_BEGIN_NAMESPACE
FMT_BEGIN_EXPORT
enum class color : uint32_t {
alice_blue = 0xF0F8FF, // rgb(240,248,255)
antique_white = 0xFAEBD7, // rgb(250,235,215)
aqua = 0x00FFFF, // rgb(0,255,255)
aquamarine = 0x7FFFD4, // rgb(127,255,212)
azure = 0xF0FFFF, // rgb(240,255,255)
beige = 0xF5F5DC, // rgb(245,245,220)
bisque = 0xFFE4C4, // rgb(255,228,196)
black = 0x000000, // rgb(0,0,0)
blanched_almond = 0xFFEBCD, // rgb(255,235,205)
blue = 0x0000FF, // rgb(0,0,255)
blue_violet = 0x8A2BE2, // rgb(138,43,226)
brown = 0xA52A2A, // rgb(165,42,42)
burly_wood = 0xDEB887, // rgb(222,184,135)
cadet_blue = 0x5F9EA0, // rgb(95,158,160)
chartreuse = 0x7FFF00, // rgb(127,255,0)
chocolate = 0xD2691E, // rgb(210,105,30)
coral = 0xFF7F50, // rgb(255,127,80)
cornflower_blue = 0x6495ED, // rgb(100,149,237)
cornsilk = 0xFFF8DC, // rgb(255,248,220)
crimson = 0xDC143C, // rgb(220,20,60)
cyan = 0x00FFFF, // rgb(0,255,255)
dark_blue = 0x00008B, // rgb(0,0,139)
dark_cyan = 0x008B8B, // rgb(0,139,139)
dark_golden_rod = 0xB8860B, // rgb(184,134,11)
dark_gray = 0xA9A9A9, // rgb(169,169,169)
dark_green = 0x006400, // rgb(0,100,0)
dark_khaki = 0xBDB76B, // rgb(189,183,107)
dark_magenta = 0x8B008B, // rgb(139,0,139)
dark_olive_green = 0x556B2F, // rgb(85,107,47)
dark_orange = 0xFF8C00, // rgb(255,140,0)
dark_orchid = 0x9932CC, // rgb(153,50,204)
dark_red = 0x8B0000, // rgb(139,0,0)
dark_salmon = 0xE9967A, // rgb(233,150,122)
dark_sea_green = 0x8FBC8F, // rgb(143,188,143)
dark_slate_blue = 0x483D8B, // rgb(72,61,139)
dark_slate_gray = 0x2F4F4F, // rgb(47,79,79)
dark_turquoise = 0x00CED1, // rgb(0,206,209)
dark_violet = 0x9400D3, // rgb(148,0,211)
deep_pink = 0xFF1493, // rgb(255,20,147)
deep_sky_blue = 0x00BFFF, // rgb(0,191,255)
dim_gray = 0x696969, // rgb(105,105,105)
dodger_blue = 0x1E90FF, // rgb(30,144,255)
fire_brick = 0xB22222, // rgb(178,34,34)
floral_white = 0xFFFAF0, // rgb(255,250,240)
forest_green = 0x228B22, // rgb(34,139,34)
fuchsia = 0xFF00FF, // rgb(255,0,255)
gainsboro = 0xDCDCDC, // rgb(220,220,220)
ghost_white = 0xF8F8FF, // rgb(248,248,255)
gold = 0xFFD700, // rgb(255,215,0)
golden_rod = 0xDAA520, // rgb(218,165,32)
gray = 0x808080, // rgb(128,128,128)
green = 0x008000, // rgb(0,128,0)
green_yellow = 0xADFF2F, // rgb(173,255,47)
honey_dew = 0xF0FFF0, // rgb(240,255,240)
hot_pink = 0xFF69B4, // rgb(255,105,180)
indian_red = 0xCD5C5C, // rgb(205,92,92)
indigo = 0x4B0082, // rgb(75,0,130)
ivory = 0xFFFFF0, // rgb(255,255,240)
khaki = 0xF0E68C, // rgb(240,230,140)
lavender = 0xE6E6FA, // rgb(230,230,250)
lavender_blush = 0xFFF0F5, // rgb(255,240,245)
lawn_green = 0x7CFC00, // rgb(124,252,0)
lemon_chiffon = 0xFFFACD, // rgb(255,250,205)
light_blue = 0xADD8E6, // rgb(173,216,230)
light_coral = 0xF08080, // rgb(240,128,128)
light_cyan = 0xE0FFFF, // rgb(224,255,255)
light_golden_rod_yellow = 0xFAFAD2, // rgb(250,250,210)
light_gray = 0xD3D3D3, // rgb(211,211,211)
light_green = 0x90EE90, // rgb(144,238,144)
light_pink = 0xFFB6C1, // rgb(255,182,193)
light_salmon = 0xFFA07A, // rgb(255,160,122)
light_sea_green = 0x20B2AA, // rgb(32,178,170)
light_sky_blue = 0x87CEFA, // rgb(135,206,250)
light_slate_gray = 0x778899, // rgb(119,136,153)
light_steel_blue = 0xB0C4DE, // rgb(176,196,222)
light_yellow = 0xFFFFE0, // rgb(255,255,224)
lime = 0x00FF00, // rgb(0,255,0)
lime_green = 0x32CD32, // rgb(50,205,50)
linen = 0xFAF0E6, // rgb(250,240,230)
magenta = 0xFF00FF, // rgb(255,0,255)
maroon = 0x800000, // rgb(128,0,0)
medium_aquamarine = 0x66CDAA, // rgb(102,205,170)
medium_blue = 0x0000CD, // rgb(0,0,205)
medium_orchid = 0xBA55D3, // rgb(186,85,211)
medium_purple = 0x9370DB, // rgb(147,112,219)
medium_sea_green = 0x3CB371, // rgb(60,179,113)
medium_slate_blue = 0x7B68EE, // rgb(123,104,238)
medium_spring_green = 0x00FA9A, // rgb(0,250,154)
medium_turquoise = 0x48D1CC, // rgb(72,209,204)
medium_violet_red = 0xC71585, // rgb(199,21,133)
midnight_blue = 0x191970, // rgb(25,25,112)
mint_cream = 0xF5FFFA, // rgb(245,255,250)
misty_rose = 0xFFE4E1, // rgb(255,228,225)
moccasin = 0xFFE4B5, // rgb(255,228,181)
navajo_white = 0xFFDEAD, // rgb(255,222,173)
navy = 0x000080, // rgb(0,0,128)
old_lace = 0xFDF5E6, // rgb(253,245,230)
olive = 0x808000, // rgb(128,128,0)
olive_drab = 0x6B8E23, // rgb(107,142,35)
orange = 0xFFA500, // rgb(255,165,0)
orange_red = 0xFF4500, // rgb(255,69,0)
orchid = 0xDA70D6, // rgb(218,112,214)
pale_golden_rod = 0xEEE8AA, // rgb(238,232,170)
pale_green = 0x98FB98, // rgb(152,251,152)
pale_turquoise = 0xAFEEEE, // rgb(175,238,238)
pale_violet_red = 0xDB7093, // rgb(219,112,147)
papaya_whip = 0xFFEFD5, // rgb(255,239,213)
peach_puff = 0xFFDAB9, // rgb(255,218,185)
peru = 0xCD853F, // rgb(205,133,63)
pink = 0xFFC0CB, // rgb(255,192,203)
plum = 0xDDA0DD, // rgb(221,160,221)
powder_blue = 0xB0E0E6, // rgb(176,224,230)
purple = 0x800080, // rgb(128,0,128)
rebecca_purple = 0x663399, // rgb(102,51,153)
red = 0xFF0000, // rgb(255,0,0)
rosy_brown = 0xBC8F8F, // rgb(188,143,143)
royal_blue = 0x4169E1, // rgb(65,105,225)
saddle_brown = 0x8B4513, // rgb(139,69,19)
salmon = 0xFA8072, // rgb(250,128,114)
sandy_brown = 0xF4A460, // rgb(244,164,96)
sea_green = 0x2E8B57, // rgb(46,139,87)
sea_shell = 0xFFF5EE, // rgb(255,245,238)
sienna = 0xA0522D, // rgb(160,82,45)
silver = 0xC0C0C0, // rgb(192,192,192)
sky_blue = 0x87CEEB, // rgb(135,206,235)
slate_blue = 0x6A5ACD, // rgb(106,90,205)
slate_gray = 0x708090, // rgb(112,128,144)
snow = 0xFFFAFA, // rgb(255,250,250)
spring_green = 0x00FF7F, // rgb(0,255,127)
steel_blue = 0x4682B4, // rgb(70,130,180)
tan = 0xD2B48C, // rgb(210,180,140)
teal = 0x008080, // rgb(0,128,128)
thistle = 0xD8BFD8, // rgb(216,191,216)
tomato = 0xFF6347, // rgb(255,99,71)
turquoise = 0x40E0D0, // rgb(64,224,208)
violet = 0xEE82EE, // rgb(238,130,238)
wheat = 0xF5DEB3, // rgb(245,222,179)
white = 0xFFFFFF, // rgb(255,255,255)
white_smoke = 0xF5F5F5, // rgb(245,245,245)
yellow = 0xFFFF00, // rgb(255,255,0)
yellow_green = 0x9ACD32 // rgb(154,205,50)
}; // enum class color
enum class terminal_color : uint8_t {
black = 30,
red,
green,
yellow,
blue,
magenta,
cyan,
white,
bright_black = 90,
bright_red,
bright_green,
bright_yellow,
bright_blue,
bright_magenta,
bright_cyan,
bright_white
};
enum class emphasis : uint8_t {
bold = 1,
faint = 1 << 1,
italic = 1 << 2,
underline = 1 << 3,
blink = 1 << 4,
reverse = 1 << 5,
conceal = 1 << 6,
strikethrough = 1 << 7,
};
// rgb is a struct for red, green and blue colors.
// Using the name "rgb" makes some editors show the color in a tooltip.
struct rgb {
FMT_CONSTEXPR rgb() : r(0), g(0), b(0) {}
FMT_CONSTEXPR rgb(uint8_t r_, uint8_t g_, uint8_t b_) : r(r_), g(g_), b(b_) {}
FMT_CONSTEXPR rgb(uint32_t hex)
: r((hex >> 16) & 0xFF), g((hex >> 8) & 0xFF), b(hex & 0xFF) {}
FMT_CONSTEXPR rgb(color hex)
: r((uint32_t(hex) >> 16) & 0xFF),
g((uint32_t(hex) >> 8) & 0xFF),
b(uint32_t(hex) & 0xFF) {}
uint8_t r;
uint8_t g;
uint8_t b;
};
namespace detail {
// color is a struct of either a rgb color or a terminal color.
struct color_type {
FMT_CONSTEXPR color_type() noexcept : is_rgb(), value{} {}
FMT_CONSTEXPR color_type(color rgb_color) noexcept : is_rgb(true), value{} {
value.rgb_color = static_cast<uint32_t>(rgb_color);
}
FMT_CONSTEXPR color_type(rgb rgb_color) noexcept : is_rgb(true), value{} {
value.rgb_color = (static_cast<uint32_t>(rgb_color.r) << 16) |
(static_cast<uint32_t>(rgb_color.g) << 8) | rgb_color.b;
}
FMT_CONSTEXPR color_type(terminal_color term_color) noexcept
: is_rgb(), value{} {
value.term_color = static_cast<uint8_t>(term_color);
}
bool is_rgb;
union color_union {
uint8_t term_color;
uint32_t rgb_color;
} value;
};
} // namespace detail
/** A text style consisting of foreground and background colors and emphasis. */
class text_style {
public:
FMT_CONSTEXPR text_style(emphasis em = emphasis()) noexcept
: set_foreground_color(), set_background_color(), ems(em) {}
FMT_CONSTEXPR auto operator|=(const text_style& rhs) -> text_style& {
if (!set_foreground_color) {
set_foreground_color = rhs.set_foreground_color;
foreground_color = rhs.foreground_color;
} else if (rhs.set_foreground_color) {
if (!foreground_color.is_rgb || !rhs.foreground_color.is_rgb)
FMT_THROW(format_error("can't OR a terminal color"));
foreground_color.value.rgb_color |= rhs.foreground_color.value.rgb_color;
}
if (!set_background_color) {
set_background_color = rhs.set_background_color;
background_color = rhs.background_color;
} else if (rhs.set_background_color) {
if (!background_color.is_rgb || !rhs.background_color.is_rgb)
FMT_THROW(format_error("can't OR a terminal color"));
background_color.value.rgb_color |= rhs.background_color.value.rgb_color;
}
ems = static_cast<emphasis>(static_cast<uint8_t>(ems) |
static_cast<uint8_t>(rhs.ems));
return *this;
}
friend FMT_CONSTEXPR auto operator|(text_style lhs, const text_style& rhs)
-> text_style {
return lhs |= rhs;
}
FMT_CONSTEXPR auto has_foreground() const noexcept -> bool {
return set_foreground_color;
}
FMT_CONSTEXPR auto has_background() const noexcept -> bool {
return set_background_color;
}
FMT_CONSTEXPR auto has_emphasis() const noexcept -> bool {
return static_cast<uint8_t>(ems) != 0;
}
FMT_CONSTEXPR auto get_foreground() const noexcept -> detail::color_type {
FMT_ASSERT(has_foreground(), "no foreground specified for this style");
return foreground_color;
}
FMT_CONSTEXPR auto get_background() const noexcept -> detail::color_type {
FMT_ASSERT(has_background(), "no background specified for this style");
return background_color;
}
FMT_CONSTEXPR auto get_emphasis() const noexcept -> emphasis {
FMT_ASSERT(has_emphasis(), "no emphasis specified for this style");
return ems;
}
private:
FMT_CONSTEXPR text_style(bool is_foreground,
detail::color_type text_color) noexcept
: set_foreground_color(), set_background_color(), ems() {
if (is_foreground) {
foreground_color = text_color;
set_foreground_color = true;
} else {
background_color = text_color;
set_background_color = true;
}
}
friend FMT_CONSTEXPR auto fg(detail::color_type foreground) noexcept
-> text_style;
friend FMT_CONSTEXPR auto bg(detail::color_type background) noexcept
-> text_style;
detail::color_type foreground_color;
detail::color_type background_color;
bool set_foreground_color;
bool set_background_color;
emphasis ems;
};
/** Creates a text style from the foreground (text) color. */
FMT_CONSTEXPR inline auto fg(detail::color_type foreground) noexcept
-> text_style {
return text_style(true, foreground);
}
/** Creates a text style from the background color. */
FMT_CONSTEXPR inline auto bg(detail::color_type background) noexcept
-> text_style {
return text_style(false, background);
}
FMT_CONSTEXPR inline auto operator|(emphasis lhs, emphasis rhs) noexcept
-> text_style {
return text_style(lhs) | rhs;
}
namespace detail {
template <typename Char> struct ansi_color_escape {
FMT_CONSTEXPR ansi_color_escape(detail::color_type text_color,
const char* esc) noexcept {
// If we have a terminal color, we need to output another escape code
// sequence.
if (!text_color.is_rgb) {
bool is_background = esc == string_view("\x1b[48;2;");
uint32_t value = text_color.value.term_color;
// Background ASCII codes are the same as the foreground ones but with
// 10 more.
if (is_background) value += 10u;
size_t index = 0;
buffer[index++] = static_cast<Char>('\x1b');
buffer[index++] = static_cast<Char>('[');
if (value >= 100u) {
buffer[index++] = static_cast<Char>('1');
value %= 100u;
}
buffer[index++] = static_cast<Char>('0' + value / 10u);
buffer[index++] = static_cast<Char>('0' + value % 10u);
buffer[index++] = static_cast<Char>('m');
buffer[index++] = static_cast<Char>('\0');
return;
}
for (int i = 0; i < 7; i++) {
buffer[i] = static_cast<Char>(esc[i]);
}
rgb color(text_color.value.rgb_color);
to_esc(color.r, buffer + 7, ';');
to_esc(color.g, buffer + 11, ';');
to_esc(color.b, buffer + 15, 'm');
buffer[19] = static_cast<Char>(0);
}
FMT_CONSTEXPR ansi_color_escape(emphasis em) noexcept {
uint8_t em_codes[num_emphases] = {};
if (has_emphasis(em, emphasis::bold)) em_codes[0] = 1;
if (has_emphasis(em, emphasis::faint)) em_codes[1] = 2;
if (has_emphasis(em, emphasis::italic)) em_codes[2] = 3;
if (has_emphasis(em, emphasis::underline)) em_codes[3] = 4;
if (has_emphasis(em, emphasis::blink)) em_codes[4] = 5;
if (has_emphasis(em, emphasis::reverse)) em_codes[5] = 7;
if (has_emphasis(em, emphasis::conceal)) em_codes[6] = 8;
if (has_emphasis(em, emphasis::strikethrough)) em_codes[7] = 9;
size_t index = 0;
for (size_t i = 0; i < num_emphases; ++i) {
if (!em_codes[i]) continue;
buffer[index++] = static_cast<Char>('\x1b');
buffer[index++] = static_cast<Char>('[');
buffer[index++] = static_cast<Char>('0' + em_codes[i]);
buffer[index++] = static_cast<Char>('m');
}
buffer[index++] = static_cast<Char>(0);
}
FMT_CONSTEXPR operator const Char*() const noexcept { return buffer; }
FMT_CONSTEXPR auto begin() const noexcept -> const Char* { return buffer; }
FMT_CONSTEXPR_CHAR_TRAITS auto end() const noexcept -> const Char* {
return buffer + std::char_traits<Char>::length(buffer);
}
private:
static constexpr size_t num_emphases = 8;
Char buffer[7u + 3u * num_emphases + 1u];
static FMT_CONSTEXPR void to_esc(uint8_t c, Char* out,
char delimiter) noexcept {
out[0] = static_cast<Char>('0' + c / 100);
out[1] = static_cast<Char>('0' + c / 10 % 10);
out[2] = static_cast<Char>('0' + c % 10);
out[3] = static_cast<Char>(delimiter);
}
static FMT_CONSTEXPR auto has_emphasis(emphasis em, emphasis mask) noexcept
-> bool {
return static_cast<uint8_t>(em) & static_cast<uint8_t>(mask);
}
};
template <typename Char>
FMT_CONSTEXPR auto make_foreground_color(detail::color_type foreground) noexcept
-> ansi_color_escape<Char> {
return ansi_color_escape<Char>(foreground, "\x1b[38;2;");
}
template <typename Char>
FMT_CONSTEXPR auto make_background_color(detail::color_type background) noexcept
-> ansi_color_escape<Char> {
return ansi_color_escape<Char>(background, "\x1b[48;2;");
}
template <typename Char>
FMT_CONSTEXPR auto make_emphasis(emphasis em) noexcept
-> ansi_color_escape<Char> {
return ansi_color_escape<Char>(em);
}
template <typename Char> inline void reset_color(buffer<Char>& buffer) {
auto reset_color = string_view("\x1b[0m");
buffer.append(reset_color.begin(), reset_color.end());
}
template <typename T> struct styled_arg : detail::view {
const T& value;
text_style style;
styled_arg(const T& v, text_style s) : value(v), style(s) {}
};
template <typename Char>
void vformat_to(buffer<Char>& buf, const text_style& ts,
basic_string_view<Char> format_str,
basic_format_args<buffer_context<type_identity_t<Char>>> args) {
bool has_style = false;
if (ts.has_emphasis()) {
has_style = true;
auto emphasis = detail::make_emphasis<Char>(ts.get_emphasis());
buf.append(emphasis.begin(), emphasis.end());
}
if (ts.has_foreground()) {
has_style = true;
auto foreground = detail::make_foreground_color<Char>(ts.get_foreground());
buf.append(foreground.begin(), foreground.end());
}
if (ts.has_background()) {
has_style = true;
auto background = detail::make_background_color<Char>(ts.get_background());
buf.append(background.begin(), background.end());
}
detail::vformat_to(buf, format_str, args, {});
if (has_style) detail::reset_color<Char>(buf);
}
} // namespace detail
inline void vprint(std::FILE* f, const text_style& ts, string_view fmt,
format_args args) {
// Legacy wide streams are not supported.
auto buf = memory_buffer();
detail::vformat_to(buf, ts, fmt, args);
if (detail::is_utf8()) {
detail::print(f, string_view(buf.begin(), buf.size()));
return;
}
buf.push_back('\0');
int result = std::fputs(buf.data(), f);
if (result < 0)
FMT_THROW(system_error(errno, FMT_STRING("cannot write to file")));
}
/**
\rst
Formats a string and prints it to the specified file stream using ANSI
escape sequences to specify text formatting.
**Example**::
fmt::print(fmt::emphasis::bold | fg(fmt::color::red),
"Elapsed time: {0:.2f} seconds", 1.23);
\endrst
*/
template <typename S, typename... Args,
FMT_ENABLE_IF(detail::is_string<S>::value)>
void print(std::FILE* f, const text_style& ts, const S& format_str,
const Args&... args) {
vprint(f, ts, format_str,
fmt::make_format_args<buffer_context<char_t<S>>>(args...));
}
/**
\rst
Formats a string and prints it to stdout using ANSI escape sequences to
specify text formatting.
**Example**::
fmt::print(fmt::emphasis::bold | fg(fmt::color::red),
"Elapsed time: {0:.2f} seconds", 1.23);
\endrst
*/
template <typename S, typename... Args,
FMT_ENABLE_IF(detail::is_string<S>::value)>
void print(const text_style& ts, const S& format_str, const Args&... args) {
return print(stdout, ts, format_str, args...);
}
template <typename S, typename Char = char_t<S>>
inline auto vformat(
const text_style& ts, const S& format_str,
basic_format_args<buffer_context<type_identity_t<Char>>> args)
-> std::basic_string<Char> {
basic_memory_buffer<Char> buf;
detail::vformat_to(buf, ts, detail::to_string_view(format_str), args);
return fmt::to_string(buf);
}
/**
\rst
Formats arguments and returns the result as a string using ANSI
escape sequences to specify text formatting.
**Example**::
#include <fmt/color.h>
std::string message = fmt::format(fmt::emphasis::bold | fg(fmt::color::red),
"The answer is {}", 42);
\endrst
*/
template <typename S, typename... Args, typename Char = char_t<S>>
inline auto format(const text_style& ts, const S& format_str,
const Args&... args) -> std::basic_string<Char> {
return fmt::vformat(ts, detail::to_string_view(format_str),
fmt::make_format_args<buffer_context<Char>>(args...));
}
/**
Formats a string with the given text_style and writes the output to ``out``.
*/
template <typename OutputIt, typename Char,
FMT_ENABLE_IF(detail::is_output_iterator<OutputIt, Char>::value)>
auto vformat_to(OutputIt out, const text_style& ts,
basic_string_view<Char> format_str,
basic_format_args<buffer_context<type_identity_t<Char>>> args)
-> OutputIt {
auto&& buf = detail::get_buffer<Char>(out);
detail::vformat_to(buf, ts, format_str, args);
return detail::get_iterator(buf, out);
}
/**
\rst
Formats arguments with the given text_style, writes the result to the output
iterator ``out`` and returns the iterator past the end of the output range.
**Example**::
std::vector<char> out;
fmt::format_to(std::back_inserter(out),
fmt::emphasis::bold | fg(fmt::color::red), "{}", 42);
\endrst
*/
template <
typename OutputIt, typename S, typename... Args,
bool enable = detail::is_output_iterator<OutputIt, char_t<S>>::value &&
detail::is_string<S>::value>
inline auto format_to(OutputIt out, const text_style& ts, const S& format_str,
Args&&... args) ->
typename std::enable_if<enable, OutputIt>::type {
return vformat_to(out, ts, detail::to_string_view(format_str),
fmt::make_format_args<buffer_context<char_t<S>>>(args...));
}
template <typename T, typename Char>
struct formatter<detail::styled_arg<T>, Char> : formatter<T, Char> {
template <typename FormatContext>
auto format(const detail::styled_arg<T>& arg, FormatContext& ctx) const
-> decltype(ctx.out()) {
const auto& ts = arg.style;
const auto& value = arg.value;
auto out = ctx.out();
bool has_style = false;
if (ts.has_emphasis()) {
has_style = true;
auto emphasis = detail::make_emphasis<Char>(ts.get_emphasis());
out = std::copy(emphasis.begin(), emphasis.end(), out);
}
if (ts.has_foreground()) {
has_style = true;
auto foreground =
detail::make_foreground_color<Char>(ts.get_foreground());
out = std::copy(foreground.begin(), foreground.end(), out);
}
if (ts.has_background()) {
has_style = true;
auto background =
detail::make_background_color<Char>(ts.get_background());
out = std::copy(background.begin(), background.end(), out);
}
out = formatter<T, Char>::format(value, ctx);
if (has_style) {
auto reset_color = string_view("\x1b[0m");
out = std::copy(reset_color.begin(), reset_color.end(), out);
}
return out;
}
};
/**
\rst
Returns an argument that will be formatted using ANSI escape sequences,
to be used in a formatting function.
**Example**::
fmt::print("Elapsed time: {0:.2f} seconds",
fmt::styled(1.23, fmt::fg(fmt::color::green) |
fmt::bg(fmt::color::blue)));
\endrst
*/
template <typename T>
FMT_CONSTEXPR auto styled(const T& value, text_style ts)
-> detail::styled_arg<remove_cvref_t<T>> {
return detail::styled_arg<remove_cvref_t<T>>{value, ts};
}
FMT_END_EXPORT
FMT_END_NAMESPACE
#endif // FMT_COLOR_H_

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// Formatting library for C++ - experimental format string compilation
//
// Copyright (c) 2012 - present, Victor Zverovich and fmt contributors
// All rights reserved.
//
// For the license information refer to format.h.
#ifndef FMT_COMPILE_H_
#define FMT_COMPILE_H_
#include "format.h"
FMT_BEGIN_NAMESPACE
namespace detail {
template <typename Char, typename InputIt>
FMT_CONSTEXPR inline auto copy_str(InputIt begin, InputIt end,
counting_iterator it) -> counting_iterator {
return it + (end - begin);
}
// A compile-time string which is compiled into fast formatting code.
class compiled_string {};
template <typename S>
struct is_compiled_string : std::is_base_of<compiled_string, S> {};
/**
\rst
Converts a string literal *s* into a format string that will be parsed at
compile time and converted into efficient formatting code. Requires C++17
``constexpr if`` compiler support.
**Example**::
// Converts 42 into std::string using the most efficient method and no
// runtime format string processing.
std::string s = fmt::format(FMT_COMPILE("{}"), 42);
\endrst
*/
#if defined(__cpp_if_constexpr) && defined(__cpp_return_type_deduction)
# define FMT_COMPILE(s) \
FMT_STRING_IMPL(s, fmt::detail::compiled_string, explicit)
#else
# define FMT_COMPILE(s) FMT_STRING(s)
#endif
#if FMT_USE_NONTYPE_TEMPLATE_ARGS
template <typename Char, size_t N,
fmt::detail_exported::fixed_string<Char, N> Str>
struct udl_compiled_string : compiled_string {
using char_type = Char;
explicit constexpr operator basic_string_view<char_type>() const {
return {Str.data, N - 1};
}
};
#endif
template <typename T, typename... Tail>
auto first(const T& value, const Tail&...) -> const T& {
return value;
}
#if defined(__cpp_if_constexpr) && defined(__cpp_return_type_deduction)
template <typename... Args> struct type_list {};
// Returns a reference to the argument at index N from [first, rest...].
template <int N, typename T, typename... Args>
constexpr const auto& get([[maybe_unused]] const T& first,
[[maybe_unused]] const Args&... rest) {
static_assert(N < 1 + sizeof...(Args), "index is out of bounds");
if constexpr (N == 0)
return first;
else
return detail::get<N - 1>(rest...);
}
template <typename Char, typename... Args>
constexpr int get_arg_index_by_name(basic_string_view<Char> name,
type_list<Args...>) {
return get_arg_index_by_name<Args...>(name);
}
template <int N, typename> struct get_type_impl;
template <int N, typename... Args> struct get_type_impl<N, type_list<Args...>> {
using type =
remove_cvref_t<decltype(detail::get<N>(std::declval<Args>()...))>;
};
template <int N, typename T>
using get_type = typename get_type_impl<N, T>::type;
template <typename T> struct is_compiled_format : std::false_type {};
template <typename Char> struct text {
basic_string_view<Char> data;
using char_type = Char;
template <typename OutputIt, typename... Args>
constexpr OutputIt format(OutputIt out, const Args&...) const {
return write<Char>(out, data);
}
};
template <typename Char>
struct is_compiled_format<text<Char>> : std::true_type {};
template <typename Char>
constexpr text<Char> make_text(basic_string_view<Char> s, size_t pos,
size_t size) {
return {{&s[pos], size}};
}
template <typename Char> struct code_unit {
Char value;
using char_type = Char;
template <typename OutputIt, typename... Args>
constexpr OutputIt format(OutputIt out, const Args&...) const {
*out++ = value;
return out;
}
};
// This ensures that the argument type is convertible to `const T&`.
template <typename T, int N, typename... Args>
constexpr const T& get_arg_checked(const Args&... args) {
const auto& arg = detail::get<N>(args...);
if constexpr (detail::is_named_arg<remove_cvref_t<decltype(arg)>>()) {
return arg.value;
} else {
return arg;
}
}
template <typename Char>
struct is_compiled_format<code_unit<Char>> : std::true_type {};
// A replacement field that refers to argument N.
template <typename Char, typename T, int N> struct field {
using char_type = Char;
template <typename OutputIt, typename... Args>
constexpr OutputIt format(OutputIt out, const Args&... args) const {
const T& arg = get_arg_checked<T, N>(args...);
if constexpr (std::is_convertible_v<T, basic_string_view<Char>>) {
auto s = basic_string_view<Char>(arg);
return copy_str<Char>(s.begin(), s.end(), out);
}
return write<Char>(out, arg);
}
};
template <typename Char, typename T, int N>
struct is_compiled_format<field<Char, T, N>> : std::true_type {};
// A replacement field that refers to argument with name.
template <typename Char> struct runtime_named_field {
using char_type = Char;
basic_string_view<Char> name;
template <typename OutputIt, typename T>
constexpr static bool try_format_argument(
OutputIt& out,
// [[maybe_unused]] due to unused-but-set-parameter warning in GCC 7,8,9
[[maybe_unused]] basic_string_view<Char> arg_name, const T& arg) {
if constexpr (is_named_arg<typename std::remove_cv<T>::type>::value) {
if (arg_name == arg.name) {
out = write<Char>(out, arg.value);
return true;
}
}
return false;
}
template <typename OutputIt, typename... Args>
constexpr OutputIt format(OutputIt out, const Args&... args) const {
bool found = (try_format_argument(out, name, args) || ...);
if (!found) {
FMT_THROW(format_error("argument with specified name is not found"));
}
return out;
}
};
template <typename Char>
struct is_compiled_format<runtime_named_field<Char>> : std::true_type {};
// A replacement field that refers to argument N and has format specifiers.
template <typename Char, typename T, int N> struct spec_field {
using char_type = Char;
formatter<T, Char> fmt;
template <typename OutputIt, typename... Args>
constexpr FMT_INLINE OutputIt format(OutputIt out,
const Args&... args) const {
const auto& vargs =
fmt::make_format_args<basic_format_context<OutputIt, Char>>(args...);
basic_format_context<OutputIt, Char> ctx(out, vargs);
return fmt.format(get_arg_checked<T, N>(args...), ctx);
}
};
template <typename Char, typename T, int N>
struct is_compiled_format<spec_field<Char, T, N>> : std::true_type {};
template <typename L, typename R> struct concat {
L lhs;
R rhs;
using char_type = typename L::char_type;
template <typename OutputIt, typename... Args>
constexpr OutputIt format(OutputIt out, const Args&... args) const {
out = lhs.format(out, args...);
return rhs.format(out, args...);
}
};
template <typename L, typename R>
struct is_compiled_format<concat<L, R>> : std::true_type {};
template <typename L, typename R>
constexpr concat<L, R> make_concat(L lhs, R rhs) {
return {lhs, rhs};
}
struct unknown_format {};
template <typename Char>
constexpr size_t parse_text(basic_string_view<Char> str, size_t pos) {
for (size_t size = str.size(); pos != size; ++pos) {
if (str[pos] == '{' || str[pos] == '}') break;
}
return pos;
}
template <typename Args, size_t POS, int ID, typename S>
constexpr auto compile_format_string(S format_str);
template <typename Args, size_t POS, int ID, typename T, typename S>
constexpr auto parse_tail(T head, S format_str) {
if constexpr (POS !=
basic_string_view<typename S::char_type>(format_str).size()) {
constexpr auto tail = compile_format_string<Args, POS, ID>(format_str);
if constexpr (std::is_same<remove_cvref_t<decltype(tail)>,
unknown_format>())
return tail;
else
return make_concat(head, tail);
} else {
return head;
}
}
template <typename T, typename Char> struct parse_specs_result {
formatter<T, Char> fmt;
size_t end;
int next_arg_id;
};
enum { manual_indexing_id = -1 };
template <typename T, typename Char>
constexpr parse_specs_result<T, Char> parse_specs(basic_string_view<Char> str,
size_t pos, int next_arg_id) {
str.remove_prefix(pos);
auto ctx =
compile_parse_context<Char>(str, max_value<int>(), nullptr, next_arg_id);
auto f = formatter<T, Char>();
auto end = f.parse(ctx);
return {f, pos + fmt::detail::to_unsigned(end - str.data()),
next_arg_id == 0 ? manual_indexing_id : ctx.next_arg_id()};
}
template <typename Char> struct arg_id_handler {
arg_ref<Char> arg_id;
constexpr int on_auto() {
FMT_ASSERT(false, "handler cannot be used with automatic indexing");
return 0;
}
constexpr int on_index(int id) {
arg_id = arg_ref<Char>(id);
return 0;
}
constexpr int on_name(basic_string_view<Char> id) {
arg_id = arg_ref<Char>(id);
return 0;
}
};
template <typename Char> struct parse_arg_id_result {
arg_ref<Char> arg_id;
const Char* arg_id_end;
};
template <int ID, typename Char>
constexpr auto parse_arg_id(const Char* begin, const Char* end) {
auto handler = arg_id_handler<Char>{arg_ref<Char>{}};
auto arg_id_end = parse_arg_id(begin, end, handler);
return parse_arg_id_result<Char>{handler.arg_id, arg_id_end};
}
template <typename T, typename Enable = void> struct field_type {
using type = remove_cvref_t<T>;
};
template <typename T>
struct field_type<T, enable_if_t<detail::is_named_arg<T>::value>> {
using type = remove_cvref_t<decltype(T::value)>;
};
template <typename T, typename Args, size_t END_POS, int ARG_INDEX, int NEXT_ID,
typename S>
constexpr auto parse_replacement_field_then_tail(S format_str) {
using char_type = typename S::char_type;
constexpr auto str = basic_string_view<char_type>(format_str);
constexpr char_type c = END_POS != str.size() ? str[END_POS] : char_type();
if constexpr (c == '}') {
return parse_tail<Args, END_POS + 1, NEXT_ID>(
field<char_type, typename field_type<T>::type, ARG_INDEX>(),
format_str);
} else if constexpr (c != ':') {
FMT_THROW(format_error("expected ':'"));
} else {
constexpr auto result = parse_specs<typename field_type<T>::type>(
str, END_POS + 1, NEXT_ID == manual_indexing_id ? 0 : NEXT_ID);
if constexpr (result.end >= str.size() || str[result.end] != '}') {
FMT_THROW(format_error("expected '}'"));
return 0;
} else {
return parse_tail<Args, result.end + 1, result.next_arg_id>(
spec_field<char_type, typename field_type<T>::type, ARG_INDEX>{
result.fmt},
format_str);
}
}
}
// Compiles a non-empty format string and returns the compiled representation
// or unknown_format() on unrecognized input.
template <typename Args, size_t POS, int ID, typename S>
constexpr auto compile_format_string(S format_str) {
using char_type = typename S::char_type;
constexpr auto str = basic_string_view<char_type>(format_str);
if constexpr (str[POS] == '{') {
if constexpr (POS + 1 == str.size())
FMT_THROW(format_error("unmatched '{' in format string"));
if constexpr (str[POS + 1] == '{') {
return parse_tail<Args, POS + 2, ID>(make_text(str, POS, 1), format_str);
} else if constexpr (str[POS + 1] == '}' || str[POS + 1] == ':') {
static_assert(ID != manual_indexing_id,
"cannot switch from manual to automatic argument indexing");
constexpr auto next_id =
ID != manual_indexing_id ? ID + 1 : manual_indexing_id;
return parse_replacement_field_then_tail<get_type<ID, Args>, Args,
POS + 1, ID, next_id>(
format_str);
} else {
constexpr auto arg_id_result =
parse_arg_id<ID>(str.data() + POS + 1, str.data() + str.size());
constexpr auto arg_id_end_pos = arg_id_result.arg_id_end - str.data();
constexpr char_type c =
arg_id_end_pos != str.size() ? str[arg_id_end_pos] : char_type();
static_assert(c == '}' || c == ':', "missing '}' in format string");
if constexpr (arg_id_result.arg_id.kind == arg_id_kind::index) {
static_assert(
ID == manual_indexing_id || ID == 0,
"cannot switch from automatic to manual argument indexing");
constexpr auto arg_index = arg_id_result.arg_id.val.index;
return parse_replacement_field_then_tail<get_type<arg_index, Args>,
Args, arg_id_end_pos,
arg_index, manual_indexing_id>(
format_str);
} else if constexpr (arg_id_result.arg_id.kind == arg_id_kind::name) {
constexpr auto arg_index =
get_arg_index_by_name(arg_id_result.arg_id.val.name, Args{});
if constexpr (arg_index >= 0) {
constexpr auto next_id =
ID != manual_indexing_id ? ID + 1 : manual_indexing_id;
return parse_replacement_field_then_tail<
decltype(get_type<arg_index, Args>::value), Args, arg_id_end_pos,
arg_index, next_id>(format_str);
} else if constexpr (c == '}') {
return parse_tail<Args, arg_id_end_pos + 1, ID>(
runtime_named_field<char_type>{arg_id_result.arg_id.val.name},
format_str);
} else if constexpr (c == ':') {
return unknown_format(); // no type info for specs parsing
}
}
}
} else if constexpr (str[POS] == '}') {
if constexpr (POS + 1 == str.size())
FMT_THROW(format_error("unmatched '}' in format string"));
return parse_tail<Args, POS + 2, ID>(make_text(str, POS, 1), format_str);
} else {
constexpr auto end = parse_text(str, POS + 1);
if constexpr (end - POS > 1) {
return parse_tail<Args, end, ID>(make_text(str, POS, end - POS),
format_str);
} else {
return parse_tail<Args, end, ID>(code_unit<char_type>{str[POS]},
format_str);
}
}
}
template <typename... Args, typename S,
FMT_ENABLE_IF(detail::is_compiled_string<S>::value)>
constexpr auto compile(S format_str) {
constexpr auto str = basic_string_view<typename S::char_type>(format_str);
if constexpr (str.size() == 0) {
return detail::make_text(str, 0, 0);
} else {
constexpr auto result =
detail::compile_format_string<detail::type_list<Args...>, 0, 0>(
format_str);
return result;
}
}
#endif // defined(__cpp_if_constexpr) && defined(__cpp_return_type_deduction)
} // namespace detail
FMT_BEGIN_EXPORT
#if defined(__cpp_if_constexpr) && defined(__cpp_return_type_deduction)
template <typename CompiledFormat, typename... Args,
typename Char = typename CompiledFormat::char_type,
FMT_ENABLE_IF(detail::is_compiled_format<CompiledFormat>::value)>
FMT_INLINE std::basic_string<Char> format(const CompiledFormat& cf,
const Args&... args) {
auto s = std::basic_string<Char>();
cf.format(std::back_inserter(s), args...);
return s;
}
template <typename OutputIt, typename CompiledFormat, typename... Args,
FMT_ENABLE_IF(detail::is_compiled_format<CompiledFormat>::value)>
constexpr FMT_INLINE OutputIt format_to(OutputIt out, const CompiledFormat& cf,
const Args&... args) {
return cf.format(out, args...);
}
template <typename S, typename... Args,
FMT_ENABLE_IF(detail::is_compiled_string<S>::value)>
FMT_INLINE std::basic_string<typename S::char_type> format(const S&,
Args&&... args) {
if constexpr (std::is_same<typename S::char_type, char>::value) {
constexpr auto str = basic_string_view<typename S::char_type>(S());
if constexpr (str.size() == 2 && str[0] == '{' && str[1] == '}') {
const auto& first = detail::first(args...);
if constexpr (detail::is_named_arg<
remove_cvref_t<decltype(first)>>::value) {
return fmt::to_string(first.value);
} else {
return fmt::to_string(first);
}
}
}
constexpr auto compiled = detail::compile<Args...>(S());
if constexpr (std::is_same<remove_cvref_t<decltype(compiled)>,
detail::unknown_format>()) {
return fmt::format(
static_cast<basic_string_view<typename S::char_type>>(S()),
std::forward<Args>(args)...);
} else {
return fmt::format(compiled, std::forward<Args>(args)...);
}
}
template <typename OutputIt, typename S, typename... Args,
FMT_ENABLE_IF(detail::is_compiled_string<S>::value)>
FMT_CONSTEXPR OutputIt format_to(OutputIt out, const S&, Args&&... args) {
constexpr auto compiled = detail::compile<Args...>(S());
if constexpr (std::is_same<remove_cvref_t<decltype(compiled)>,
detail::unknown_format>()) {
return fmt::format_to(
out, static_cast<basic_string_view<typename S::char_type>>(S()),
std::forward<Args>(args)...);
} else {
return fmt::format_to(out, compiled, std::forward<Args>(args)...);
}
}
#endif
template <typename OutputIt, typename S, typename... Args,
FMT_ENABLE_IF(detail::is_compiled_string<S>::value)>
auto format_to_n(OutputIt out, size_t n, const S& format_str, Args&&... args)
-> format_to_n_result<OutputIt> {
using traits = detail::fixed_buffer_traits;
auto buf = detail::iterator_buffer<OutputIt, char, traits>(out, n);
fmt::format_to(std::back_inserter(buf), format_str,
std::forward<Args>(args)...);
return {buf.out(), buf.count()};
}
template <typename S, typename... Args,
FMT_ENABLE_IF(detail::is_compiled_string<S>::value)>
FMT_CONSTEXPR20 auto formatted_size(const S& format_str, const Args&... args)
-> size_t {
return fmt::format_to(detail::counting_iterator(), format_str, args...)
.count();
}
template <typename S, typename... Args,
FMT_ENABLE_IF(detail::is_compiled_string<S>::value)>
void print(std::FILE* f, const S& format_str, const Args&... args) {
memory_buffer buffer;
fmt::format_to(std::back_inserter(buffer), format_str, args...);
detail::print(f, {buffer.data(), buffer.size()});
}
template <typename S, typename... Args,
FMT_ENABLE_IF(detail::is_compiled_string<S>::value)>
void print(const S& format_str, const Args&... args) {
print(stdout, format_str, args...);
}
#if FMT_USE_NONTYPE_TEMPLATE_ARGS
inline namespace literals {
template <detail_exported::fixed_string Str> constexpr auto operator""_cf() {
using char_t = remove_cvref_t<decltype(Str.data[0])>;
return detail::udl_compiled_string<char_t, sizeof(Str.data) / sizeof(char_t),
Str>();
}
} // namespace literals
#endif
FMT_END_EXPORT
FMT_END_NAMESPACE
#endif // FMT_COMPILE_H_

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Copyright (c) 2012 - present, Victor Zverovich
Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
"Software"), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions:
The above copyright notice and this permission notice shall be
included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
--- Optional exception to the license ---
As an exception, if, as a result of your compiling your source code, portions
of this Software are embedded into a machine-executable object form of such
source code, you may redistribute such embedded portions in such object form
without including the above copyright and permission notices.

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#include "xchar.h"
#warning fmt/locale.h is deprecated, include fmt/format.h or fmt/xchar.h instead

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// Formatting library for C++ - optional OS-specific functionality
//
// Copyright (c) 2012 - present, Victor Zverovich
// All rights reserved.
//
// For the license information refer to format.h.
#ifndef FMT_OS_H_
#define FMT_OS_H_
#include <cerrno>
#include <cstddef>
#include <cstdio>
#include <system_error> // std::system_error
#include "format.h"
#if defined __APPLE__ || defined(__FreeBSD__)
# if FMT_HAS_INCLUDE(<xlocale.h>)
# include <xlocale.h> // for LC_NUMERIC_MASK on OS X
# endif
#endif
#ifndef FMT_USE_FCNTL
// UWP doesn't provide _pipe.
# if FMT_HAS_INCLUDE("winapifamily.h")
# include <winapifamily.h>
# endif
# if (FMT_HAS_INCLUDE(<fcntl.h>) || defined(__APPLE__) || \
defined(__linux__)) && \
(!defined(WINAPI_FAMILY) || \
(WINAPI_FAMILY == WINAPI_FAMILY_DESKTOP_APP))
# include <fcntl.h> // for O_RDONLY
# define FMT_USE_FCNTL 1
# else
# define FMT_USE_FCNTL 0
# endif
#endif
#ifndef FMT_POSIX
# if defined(_WIN32) && !defined(__MINGW32__)
// Fix warnings about deprecated symbols.
# define FMT_POSIX(call) _##call
# else
# define FMT_POSIX(call) call
# endif
#endif
// Calls to system functions are wrapped in FMT_SYSTEM for testability.
#ifdef FMT_SYSTEM
# define FMT_HAS_SYSTEM
# define FMT_POSIX_CALL(call) FMT_SYSTEM(call)
#else
# define FMT_SYSTEM(call) ::call
# ifdef _WIN32
// Fix warnings about deprecated symbols.
# define FMT_POSIX_CALL(call) ::_##call
# else
# define FMT_POSIX_CALL(call) ::call
# endif
#endif
// Retries the expression while it evaluates to error_result and errno
// equals to EINTR.
#ifndef _WIN32
# define FMT_RETRY_VAL(result, expression, error_result) \
do { \
(result) = (expression); \
} while ((result) == (error_result) && errno == EINTR)
#else
# define FMT_RETRY_VAL(result, expression, error_result) result = (expression)
#endif
#define FMT_RETRY(result, expression) FMT_RETRY_VAL(result, expression, -1)
FMT_BEGIN_NAMESPACE
FMT_BEGIN_EXPORT
/**
\rst
A reference to a null-terminated string. It can be constructed from a C
string or ``std::string``.
You can use one of the following type aliases for common character types:
+---------------+-----------------------------+
| Type | Definition |
+===============+=============================+
| cstring_view | basic_cstring_view<char> |
+---------------+-----------------------------+
| wcstring_view | basic_cstring_view<wchar_t> |
+---------------+-----------------------------+
This class is most useful as a parameter type to allow passing
different types of strings to a function, for example::
template <typename... Args>
std::string format(cstring_view format_str, const Args & ... args);
format("{}", 42);
format(std::string("{}"), 42);
\endrst
*/
template <typename Char> class basic_cstring_view {
private:
const Char* data_;
public:
/** Constructs a string reference object from a C string. */
basic_cstring_view(const Char* s) : data_(s) {}
/**
\rst
Constructs a string reference from an ``std::string`` object.
\endrst
*/
basic_cstring_view(const std::basic_string<Char>& s) : data_(s.c_str()) {}
/** Returns the pointer to a C string. */
auto c_str() const -> const Char* { return data_; }
};
using cstring_view = basic_cstring_view<char>;
using wcstring_view = basic_cstring_view<wchar_t>;
#ifdef _WIN32
FMT_API const std::error_category& system_category() noexcept;
namespace detail {
FMT_API void format_windows_error(buffer<char>& out, int error_code,
const char* message) noexcept;
}
FMT_API std::system_error vwindows_error(int error_code, string_view format_str,
format_args args);
/**
\rst
Constructs a :class:`std::system_error` object with the description
of the form
.. parsed-literal::
*<message>*: *<system-message>*
where *<message>* is the formatted message and *<system-message>* is the
system message corresponding to the error code.
*error_code* is a Windows error code as given by ``GetLastError``.
If *error_code* is not a valid error code such as -1, the system message
will look like "error -1".
**Example**::
// This throws a system_error with the description
// cannot open file 'madeup': The system cannot find the file specified.
// or similar (system message may vary).
const char *filename = "madeup";
LPOFSTRUCT of = LPOFSTRUCT();
HFILE file = OpenFile(filename, &of, OF_READ);
if (file == HFILE_ERROR) {
throw fmt::windows_error(GetLastError(),
"cannot open file '{}'", filename);
}
\endrst
*/
template <typename... Args>
std::system_error windows_error(int error_code, string_view message,
const Args&... args) {
return vwindows_error(error_code, message, fmt::make_format_args(args...));
}
// Reports a Windows error without throwing an exception.
// Can be used to report errors from destructors.
FMT_API void report_windows_error(int error_code, const char* message) noexcept;
#else
inline auto system_category() noexcept -> const std::error_category& {
return std::system_category();
}
#endif // _WIN32
// std::system is not available on some platforms such as iOS (#2248).
#ifdef __OSX__
template <typename S, typename... Args, typename Char = char_t<S>>
void say(const S& format_str, Args&&... args) {
std::system(format("say \"{}\"", format(format_str, args...)).c_str());
}
#endif
// A buffered file.
class buffered_file {
private:
FILE* file_;
friend class file;
explicit buffered_file(FILE* f) : file_(f) {}
public:
buffered_file(const buffered_file&) = delete;
void operator=(const buffered_file&) = delete;
// Constructs a buffered_file object which doesn't represent any file.
buffered_file() noexcept : file_(nullptr) {}
// Destroys the object closing the file it represents if any.
FMT_API ~buffered_file() noexcept;
public:
buffered_file(buffered_file&& other) noexcept : file_(other.file_) {
other.file_ = nullptr;
}
auto operator=(buffered_file&& other) -> buffered_file& {
close();
file_ = other.file_;
other.file_ = nullptr;
return *this;
}
// Opens a file.
FMT_API buffered_file(cstring_view filename, cstring_view mode);
// Closes the file.
FMT_API void close();
// Returns the pointer to a FILE object representing this file.
auto get() const noexcept -> FILE* { return file_; }
FMT_API auto descriptor() const -> int;
void vprint(string_view format_str, format_args args) {
fmt::vprint(file_, format_str, args);
}
template <typename... Args>
inline void print(string_view format_str, const Args&... args) {
vprint(format_str, fmt::make_format_args(args...));
}
};
#if FMT_USE_FCNTL
// A file. Closed file is represented by a file object with descriptor -1.
// Methods that are not declared with noexcept may throw
// fmt::system_error in case of failure. Note that some errors such as
// closing the file multiple times will cause a crash on Windows rather
// than an exception. You can get standard behavior by overriding the
// invalid parameter handler with _set_invalid_parameter_handler.
class FMT_API file {
private:
int fd_; // File descriptor.
// Constructs a file object with a given descriptor.
explicit file(int fd) : fd_(fd) {}
public:
// Possible values for the oflag argument to the constructor.
enum {
RDONLY = FMT_POSIX(O_RDONLY), // Open for reading only.
WRONLY = FMT_POSIX(O_WRONLY), // Open for writing only.
RDWR = FMT_POSIX(O_RDWR), // Open for reading and writing.
CREATE = FMT_POSIX(O_CREAT), // Create if the file doesn't exist.
APPEND = FMT_POSIX(O_APPEND), // Open in append mode.
TRUNC = FMT_POSIX(O_TRUNC) // Truncate the content of the file.
};
// Constructs a file object which doesn't represent any file.
file() noexcept : fd_(-1) {}
// Opens a file and constructs a file object representing this file.
file(cstring_view path, int oflag);
public:
file(const file&) = delete;
void operator=(const file&) = delete;
file(file&& other) noexcept : fd_(other.fd_) { other.fd_ = -1; }
// Move assignment is not noexcept because close may throw.
auto operator=(file&& other) -> file& {
close();
fd_ = other.fd_;
other.fd_ = -1;
return *this;
}
// Destroys the object closing the file it represents if any.
~file() noexcept;
// Returns the file descriptor.
auto descriptor() const noexcept -> int { return fd_; }
// Closes the file.
void close();
// Returns the file size. The size has signed type for consistency with
// stat::st_size.
auto size() const -> long long;
// Attempts to read count bytes from the file into the specified buffer.
auto read(void* buffer, size_t count) -> size_t;
// Attempts to write count bytes from the specified buffer to the file.
auto write(const void* buffer, size_t count) -> size_t;
// Duplicates a file descriptor with the dup function and returns
// the duplicate as a file object.
static auto dup(int fd) -> file;
// Makes fd be the copy of this file descriptor, closing fd first if
// necessary.
void dup2(int fd);
// Makes fd be the copy of this file descriptor, closing fd first if
// necessary.
void dup2(int fd, std::error_code& ec) noexcept;
// Creates a pipe setting up read_end and write_end file objects for reading
// and writing respectively.
// DEPRECATED! Taking files as out parameters is deprecated.
static void pipe(file& read_end, file& write_end);
// Creates a buffered_file object associated with this file and detaches
// this file object from the file.
auto fdopen(const char* mode) -> buffered_file;
# if defined(_WIN32) && !defined(__MINGW32__)
// Opens a file and constructs a file object representing this file by
// wcstring_view filename. Windows only.
static file open_windows_file(wcstring_view path, int oflag);
# endif
};
// Returns the memory page size.
auto getpagesize() -> long;
namespace detail {
struct buffer_size {
buffer_size() = default;
size_t value = 0;
auto operator=(size_t val) const -> buffer_size {
auto bs = buffer_size();
bs.value = val;
return bs;
}
};
struct ostream_params {
int oflag = file::WRONLY | file::CREATE | file::TRUNC;
size_t buffer_size = BUFSIZ > 32768 ? BUFSIZ : 32768;
ostream_params() {}
template <typename... T>
ostream_params(T... params, int new_oflag) : ostream_params(params...) {
oflag = new_oflag;
}
template <typename... T>
ostream_params(T... params, detail::buffer_size bs)
: ostream_params(params...) {
this->buffer_size = bs.value;
}
// Intel has a bug that results in failure to deduce a constructor
// for empty parameter packs.
# if defined(__INTEL_COMPILER) && __INTEL_COMPILER < 2000
ostream_params(int new_oflag) : oflag(new_oflag) {}
ostream_params(detail::buffer_size bs) : buffer_size(bs.value) {}
# endif
};
class file_buffer final : public buffer<char> {
file file_;
FMT_API void grow(size_t) override;
public:
FMT_API file_buffer(cstring_view path, const ostream_params& params);
FMT_API file_buffer(file_buffer&& other);
FMT_API ~file_buffer();
void flush() {
if (size() == 0) return;
file_.write(data(), size() * sizeof(data()[0]));
clear();
}
void close() {
flush();
file_.close();
}
};
} // namespace detail
// Added {} below to work around default constructor error known to
// occur in Xcode versions 7.2.1 and 8.2.1.
constexpr detail::buffer_size buffer_size{};
/** A fast output stream which is not thread-safe. */
class FMT_API ostream {
private:
FMT_MSC_WARNING(suppress : 4251)
detail::file_buffer buffer_;
ostream(cstring_view path, const detail::ostream_params& params)
: buffer_(path, params) {}
public:
ostream(ostream&& other) : buffer_(std::move(other.buffer_)) {}
~ostream();
void flush() { buffer_.flush(); }
template <typename... T>
friend auto output_file(cstring_view path, T... params) -> ostream;
void close() { buffer_.close(); }
/**
Formats ``args`` according to specifications in ``fmt`` and writes the
output to the file.
*/
template <typename... T> void print(format_string<T...> fmt, T&&... args) {
vformat_to(std::back_inserter(buffer_), fmt,
fmt::make_format_args(args...));
}
};
/**
\rst
Opens a file for writing. Supported parameters passed in *params*:
* ``<integer>``: Flags passed to `open
<https://pubs.opengroup.org/onlinepubs/007904875/functions/open.html>`_
(``file::WRONLY | file::CREATE | file::TRUNC`` by default)
* ``buffer_size=<integer>``: Output buffer size
**Example**::
auto out = fmt::output_file("guide.txt");
out.print("Don't {}", "Panic");
\endrst
*/
template <typename... T>
inline auto output_file(cstring_view path, T... params) -> ostream {
return {path, detail::ostream_params(params...)};
}
#endif // FMT_USE_FCNTL
FMT_END_EXPORT
FMT_END_NAMESPACE
#endif // FMT_OS_H_

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// Formatting library for C++ - std::ostream support
//
// Copyright (c) 2012 - present, Victor Zverovich
// All rights reserved.
//
// For the license information refer to format.h.
#ifndef FMT_OSTREAM_H_
#define FMT_OSTREAM_H_
#include <fstream> // std::filebuf
#ifdef _WIN32
# ifdef __GLIBCXX__
# include <ext/stdio_filebuf.h>
# include <ext/stdio_sync_filebuf.h>
# endif
# include <io.h>
#endif
#include "format.h"
FMT_BEGIN_NAMESPACE
namespace detail {
template <typename Streambuf> class formatbuf : public Streambuf {
private:
using char_type = typename Streambuf::char_type;
using streamsize = decltype(std::declval<Streambuf>().sputn(nullptr, 0));
using int_type = typename Streambuf::int_type;
using traits_type = typename Streambuf::traits_type;
buffer<char_type>& buffer_;
public:
explicit formatbuf(buffer<char_type>& buf) : buffer_(buf) {}
protected:
// The put area is always empty. This makes the implementation simpler and has
// the advantage that the streambuf and the buffer are always in sync and
// sputc never writes into uninitialized memory. A disadvantage is that each
// call to sputc always results in a (virtual) call to overflow. There is no
// disadvantage here for sputn since this always results in a call to xsputn.
auto overflow(int_type ch) -> int_type override {
if (!traits_type::eq_int_type(ch, traits_type::eof()))
buffer_.push_back(static_cast<char_type>(ch));
return ch;
}
auto xsputn(const char_type* s, streamsize count) -> streamsize override {
buffer_.append(s, s + count);
return count;
}
};
// Generate a unique explicit instantion in every translation unit using a tag
// type in an anonymous namespace.
namespace {
struct file_access_tag {};
} // namespace
template <typename Tag, typename BufType, FILE* BufType::*FileMemberPtr>
class file_access {
friend auto get_file(BufType& obj) -> FILE* { return obj.*FileMemberPtr; }
};
#if FMT_MSC_VERSION
template class file_access<file_access_tag, std::filebuf,
&std::filebuf::_Myfile>;
auto get_file(std::filebuf&) -> FILE*;
#endif
inline auto write_ostream_unicode(std::ostream& os, fmt::string_view data)
-> bool {
FILE* f = nullptr;
#if FMT_MSC_VERSION
if (auto* buf = dynamic_cast<std::filebuf*>(os.rdbuf()))
f = get_file(*buf);
else
return false;
#elif defined(_WIN32) && defined(__GLIBCXX__)
auto* rdbuf = os.rdbuf();
if (auto* sfbuf = dynamic_cast<__gnu_cxx::stdio_sync_filebuf<char>*>(rdbuf))
f = sfbuf->file();
else if (auto* fbuf = dynamic_cast<__gnu_cxx::stdio_filebuf<char>*>(rdbuf))
f = fbuf->file();
else
return false;
#else
ignore_unused(os, data, f);
#endif
#ifdef _WIN32
if (f) {
int fd = _fileno(f);
if (_isatty(fd)) {
os.flush();
return write_console(fd, data);
}
}
#endif
return false;
}
inline auto write_ostream_unicode(std::wostream&,
fmt::basic_string_view<wchar_t>) -> bool {
return false;
}
// Write the content of buf to os.
// It is a separate function rather than a part of vprint to simplify testing.
template <typename Char>
void write_buffer(std::basic_ostream<Char>& os, buffer<Char>& buf) {
const Char* buf_data = buf.data();
using unsigned_streamsize = std::make_unsigned<std::streamsize>::type;
unsigned_streamsize size = buf.size();
unsigned_streamsize max_size = to_unsigned(max_value<std::streamsize>());
do {
unsigned_streamsize n = size <= max_size ? size : max_size;
os.write(buf_data, static_cast<std::streamsize>(n));
buf_data += n;
size -= n;
} while (size != 0);
}
template <typename Char, typename T>
void format_value(buffer<Char>& buf, const T& value) {
auto&& format_buf = formatbuf<std::basic_streambuf<Char>>(buf);
auto&& output = std::basic_ostream<Char>(&format_buf);
#if !defined(FMT_STATIC_THOUSANDS_SEPARATOR)
output.imbue(std::locale::classic()); // The default is always unlocalized.
#endif
output << value;
output.exceptions(std::ios_base::failbit | std::ios_base::badbit);
}
template <typename T> struct streamed_view {
const T& value;
};
} // namespace detail
// Formats an object of type T that has an overloaded ostream operator<<.
template <typename Char>
struct basic_ostream_formatter : formatter<basic_string_view<Char>, Char> {
void set_debug_format() = delete;
template <typename T, typename OutputIt>
auto format(const T& value, basic_format_context<OutputIt, Char>& ctx) const
-> OutputIt {
auto buffer = basic_memory_buffer<Char>();
detail::format_value(buffer, value);
return formatter<basic_string_view<Char>, Char>::format(
{buffer.data(), buffer.size()}, ctx);
}
};
using ostream_formatter = basic_ostream_formatter<char>;
template <typename T, typename Char>
struct formatter<detail::streamed_view<T>, Char>
: basic_ostream_formatter<Char> {
template <typename OutputIt>
auto format(detail::streamed_view<T> view,
basic_format_context<OutputIt, Char>& ctx) const -> OutputIt {
return basic_ostream_formatter<Char>::format(view.value, ctx);
}
};
/**
\rst
Returns a view that formats `value` via an ostream ``operator<<``.
**Example**::
fmt::print("Current thread id: {}\n",
fmt::streamed(std::this_thread::get_id()));
\endrst
*/
template <typename T>
constexpr auto streamed(const T& value) -> detail::streamed_view<T> {
return {value};
}
namespace detail {
inline void vprint_directly(std::ostream& os, string_view format_str,
format_args args) {
auto buffer = memory_buffer();
detail::vformat_to(buffer, format_str, args);
detail::write_buffer(os, buffer);
}
} // namespace detail
FMT_EXPORT template <typename Char>
void vprint(std::basic_ostream<Char>& os,
basic_string_view<type_identity_t<Char>> format_str,
basic_format_args<buffer_context<type_identity_t<Char>>> args) {
auto buffer = basic_memory_buffer<Char>();
detail::vformat_to(buffer, format_str, args);
if (detail::write_ostream_unicode(os, {buffer.data(), buffer.size()})) return;
detail::write_buffer(os, buffer);
}
/**
\rst
Prints formatted data to the stream *os*.
**Example**::
fmt::print(cerr, "Don't {}!", "panic");
\endrst
*/
FMT_EXPORT template <typename... T>
void print(std::ostream& os, format_string<T...> fmt, T&&... args) {
const auto& vargs = fmt::make_format_args(args...);
if (detail::is_utf8())
vprint(os, fmt, vargs);
else
detail::vprint_directly(os, fmt, vargs);
}
FMT_EXPORT
template <typename... Args>
void print(std::wostream& os,
basic_format_string<wchar_t, type_identity_t<Args>...> fmt,
Args&&... args) {
vprint(os, fmt, fmt::make_format_args<buffer_context<wchar_t>>(args...));
}
FMT_EXPORT template <typename... T>
void println(std::ostream& os, format_string<T...> fmt, T&&... args) {
fmt::print(os, "{}\n", fmt::format(fmt, std::forward<T>(args)...));
}
FMT_EXPORT
template <typename... Args>
void println(std::wostream& os,
basic_format_string<wchar_t, type_identity_t<Args>...> fmt,
Args&&... args) {
print(os, L"{}\n", fmt::format(fmt, std::forward<Args>(args)...));
}
FMT_END_NAMESPACE
#endif // FMT_OSTREAM_H_

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// Formatting library for C++ - legacy printf implementation
//
// Copyright (c) 2012 - 2016, Victor Zverovich
// All rights reserved.
//
// For the license information refer to format.h.
#ifndef FMT_PRINTF_H_
#define FMT_PRINTF_H_
#include <algorithm> // std::max
#include <limits> // std::numeric_limits
#include "format.h"
FMT_BEGIN_NAMESPACE
FMT_BEGIN_EXPORT
template <typename T> struct printf_formatter {
printf_formatter() = delete;
};
template <typename Char> class basic_printf_context {
private:
detail::buffer_appender<Char> out_;
basic_format_args<basic_printf_context> args_;
static_assert(std::is_same<Char, char>::value ||
std::is_same<Char, wchar_t>::value,
"Unsupported code unit type.");
public:
using char_type = Char;
using parse_context_type = basic_format_parse_context<Char>;
template <typename T> using formatter_type = printf_formatter<T>;
/**
\rst
Constructs a ``printf_context`` object. References to the arguments are
stored in the context object so make sure they have appropriate lifetimes.
\endrst
*/
basic_printf_context(detail::buffer_appender<Char> out,
basic_format_args<basic_printf_context> args)
: out_(out), args_(args) {}
auto out() -> detail::buffer_appender<Char> { return out_; }
void advance_to(detail::buffer_appender<Char>) {}
auto locale() -> detail::locale_ref { return {}; }
auto arg(int id) const -> basic_format_arg<basic_printf_context> {
return args_.get(id);
}
FMT_CONSTEXPR void on_error(const char* message) {
detail::error_handler().on_error(message);
}
};
namespace detail {
// Checks if a value fits in int - used to avoid warnings about comparing
// signed and unsigned integers.
template <bool IsSigned> struct int_checker {
template <typename T> static auto fits_in_int(T value) -> bool {
unsigned max = max_value<int>();
return value <= max;
}
static auto fits_in_int(bool) -> bool { return true; }
};
template <> struct int_checker<true> {
template <typename T> static auto fits_in_int(T value) -> bool {
return value >= (std::numeric_limits<int>::min)() &&
value <= max_value<int>();
}
static auto fits_in_int(int) -> bool { return true; }
};
struct printf_precision_handler {
template <typename T, FMT_ENABLE_IF(std::is_integral<T>::value)>
auto operator()(T value) -> int {
if (!int_checker<std::numeric_limits<T>::is_signed>::fits_in_int(value))
throw_format_error("number is too big");
return (std::max)(static_cast<int>(value), 0);
}
template <typename T, FMT_ENABLE_IF(!std::is_integral<T>::value)>
auto operator()(T) -> int {
throw_format_error("precision is not integer");
return 0;
}
};
// An argument visitor that returns true iff arg is a zero integer.
struct is_zero_int {
template <typename T, FMT_ENABLE_IF(std::is_integral<T>::value)>
auto operator()(T value) -> bool {
return value == 0;
}
template <typename T, FMT_ENABLE_IF(!std::is_integral<T>::value)>
auto operator()(T) -> bool {
return false;
}
};
template <typename T> struct make_unsigned_or_bool : std::make_unsigned<T> {};
template <> struct make_unsigned_or_bool<bool> {
using type = bool;
};
template <typename T, typename Context> class arg_converter {
private:
using char_type = typename Context::char_type;
basic_format_arg<Context>& arg_;
char_type type_;
public:
arg_converter(basic_format_arg<Context>& arg, char_type type)
: arg_(arg), type_(type) {}
void operator()(bool value) {
if (type_ != 's') operator()<bool>(value);
}
template <typename U, FMT_ENABLE_IF(std::is_integral<U>::value)>
void operator()(U value) {
bool is_signed = type_ == 'd' || type_ == 'i';
using target_type = conditional_t<std::is_same<T, void>::value, U, T>;
if (const_check(sizeof(target_type) <= sizeof(int))) {
// Extra casts are used to silence warnings.
if (is_signed) {
auto n = static_cast<int>(static_cast<target_type>(value));
arg_ = detail::make_arg<Context>(n);
} else {
using unsigned_type = typename make_unsigned_or_bool<target_type>::type;
auto n = static_cast<unsigned>(static_cast<unsigned_type>(value));
arg_ = detail::make_arg<Context>(n);
}
} else {
if (is_signed) {
// glibc's printf doesn't sign extend arguments of smaller types:
// std::printf("%lld", -42); // prints "4294967254"
// but we don't have to do the same because it's a UB.
auto n = static_cast<long long>(value);
arg_ = detail::make_arg<Context>(n);
} else {
auto n = static_cast<typename make_unsigned_or_bool<U>::type>(value);
arg_ = detail::make_arg<Context>(n);
}
}
}
template <typename U, FMT_ENABLE_IF(!std::is_integral<U>::value)>
void operator()(U) {} // No conversion needed for non-integral types.
};
// Converts an integer argument to T for printf, if T is an integral type.
// If T is void, the argument is converted to corresponding signed or unsigned
// type depending on the type specifier: 'd' and 'i' - signed, other -
// unsigned).
template <typename T, typename Context, typename Char>
void convert_arg(basic_format_arg<Context>& arg, Char type) {
visit_format_arg(arg_converter<T, Context>(arg, type), arg);
}
// Converts an integer argument to char for printf.
template <typename Context> class char_converter {
private:
basic_format_arg<Context>& arg_;
public:
explicit char_converter(basic_format_arg<Context>& arg) : arg_(arg) {}
template <typename T, FMT_ENABLE_IF(std::is_integral<T>::value)>
void operator()(T value) {
auto c = static_cast<typename Context::char_type>(value);
arg_ = detail::make_arg<Context>(c);
}
template <typename T, FMT_ENABLE_IF(!std::is_integral<T>::value)>
void operator()(T) {} // No conversion needed for non-integral types.
};
// An argument visitor that return a pointer to a C string if argument is a
// string or null otherwise.
template <typename Char> struct get_cstring {
template <typename T> auto operator()(T) -> const Char* { return nullptr; }
auto operator()(const Char* s) -> const Char* { return s; }
};
// Checks if an argument is a valid printf width specifier and sets
// left alignment if it is negative.
template <typename Char> class printf_width_handler {
private:
format_specs<Char>& specs_;
public:
explicit printf_width_handler(format_specs<Char>& specs) : specs_(specs) {}
template <typename T, FMT_ENABLE_IF(std::is_integral<T>::value)>
auto operator()(T value) -> unsigned {
auto width = static_cast<uint32_or_64_or_128_t<T>>(value);
if (detail::is_negative(value)) {
specs_.align = align::left;
width = 0 - width;
}
unsigned int_max = max_value<int>();
if (width > int_max) throw_format_error("number is too big");
return static_cast<unsigned>(width);
}
template <typename T, FMT_ENABLE_IF(!std::is_integral<T>::value)>
auto operator()(T) -> unsigned {
throw_format_error("width is not integer");
return 0;
}
};
// Workaround for a bug with the XL compiler when initializing
// printf_arg_formatter's base class.
template <typename Char>
auto make_arg_formatter(buffer_appender<Char> iter, format_specs<Char>& s)
-> arg_formatter<Char> {
return {iter, s, locale_ref()};
}
// The ``printf`` argument formatter.
template <typename Char>
class printf_arg_formatter : public arg_formatter<Char> {
private:
using base = arg_formatter<Char>;
using context_type = basic_printf_context<Char>;
context_type& context_;
void write_null_pointer(bool is_string = false) {
auto s = this->specs;
s.type = presentation_type::none;
write_bytes(this->out, is_string ? "(null)" : "(nil)", s);
}
public:
printf_arg_formatter(buffer_appender<Char> iter, format_specs<Char>& s,
context_type& ctx)
: base(make_arg_formatter(iter, s)), context_(ctx) {}
void operator()(monostate value) { base::operator()(value); }
template <typename T, FMT_ENABLE_IF(detail::is_integral<T>::value)>
void operator()(T value) {
// MSVC2013 fails to compile separate overloads for bool and Char so use
// std::is_same instead.
if (!std::is_same<T, Char>::value) {
base::operator()(value);
return;
}
format_specs<Char> fmt_specs = this->specs;
if (fmt_specs.type != presentation_type::none &&
fmt_specs.type != presentation_type::chr) {
return (*this)(static_cast<int>(value));
}
fmt_specs.sign = sign::none;
fmt_specs.alt = false;
fmt_specs.fill[0] = ' '; // Ignore '0' flag for char types.
// align::numeric needs to be overwritten here since the '0' flag is
// ignored for non-numeric types
if (fmt_specs.align == align::none || fmt_specs.align == align::numeric)
fmt_specs.align = align::right;
write<Char>(this->out, static_cast<Char>(value), fmt_specs);
}
template <typename T, FMT_ENABLE_IF(std::is_floating_point<T>::value)>
void operator()(T value) {
base::operator()(value);
}
/** Formats a null-terminated C string. */
void operator()(const char* value) {
if (value)
base::operator()(value);
else
write_null_pointer(this->specs.type != presentation_type::pointer);
}
/** Formats a null-terminated wide C string. */
void operator()(const wchar_t* value) {
if (value)
base::operator()(value);
else
write_null_pointer(this->specs.type != presentation_type::pointer);
}
void operator()(basic_string_view<Char> value) { base::operator()(value); }
/** Formats a pointer. */
void operator()(const void* value) {
if (value)
base::operator()(value);
else
write_null_pointer();
}
/** Formats an argument of a custom (user-defined) type. */
void operator()(typename basic_format_arg<context_type>::handle handle) {
auto parse_ctx = basic_format_parse_context<Char>({});
handle.format(parse_ctx, context_);
}
};
template <typename Char>
void parse_flags(format_specs<Char>& specs, const Char*& it, const Char* end) {
for (; it != end; ++it) {
switch (*it) {
case '-':
specs.align = align::left;
break;
case '+':
specs.sign = sign::plus;
break;
case '0':
specs.fill[0] = '0';
break;
case ' ':
if (specs.sign != sign::plus) specs.sign = sign::space;
break;
case '#':
specs.alt = true;
break;
default:
return;
}
}
}
template <typename Char, typename GetArg>
auto parse_header(const Char*& it, const Char* end, format_specs<Char>& specs,
GetArg get_arg) -> int {
int arg_index = -1;
Char c = *it;
if (c >= '0' && c <= '9') {
// Parse an argument index (if followed by '$') or a width possibly
// preceded with '0' flag(s).
int value = parse_nonnegative_int(it, end, -1);
if (it != end && *it == '$') { // value is an argument index
++it;
arg_index = value != -1 ? value : max_value<int>();
} else {
if (c == '0') specs.fill[0] = '0';
if (value != 0) {
// Nonzero value means that we parsed width and don't need to
// parse it or flags again, so return now.
if (value == -1) throw_format_error("number is too big");
specs.width = value;
return arg_index;
}
}
}
parse_flags(specs, it, end);
// Parse width.
if (it != end) {
if (*it >= '0' && *it <= '9') {
specs.width = parse_nonnegative_int(it, end, -1);
if (specs.width == -1) throw_format_error("number is too big");
} else if (*it == '*') {
++it;
specs.width = static_cast<int>(visit_format_arg(
detail::printf_width_handler<Char>(specs), get_arg(-1)));
}
}
return arg_index;
}
inline auto parse_printf_presentation_type(char c, type t)
-> presentation_type {
using pt = presentation_type;
constexpr auto integral_set = sint_set | uint_set | bool_set | char_set;
switch (c) {
case 'd':
return in(t, integral_set) ? pt::dec : pt::none;
case 'o':
return in(t, integral_set) ? pt::oct : pt::none;
case 'x':
return in(t, integral_set) ? pt::hex_lower : pt::none;
case 'X':
return in(t, integral_set) ? pt::hex_upper : pt::none;
case 'a':
return in(t, float_set) ? pt::hexfloat_lower : pt::none;
case 'A':
return in(t, float_set) ? pt::hexfloat_upper : pt::none;
case 'e':
return in(t, float_set) ? pt::exp_lower : pt::none;
case 'E':
return in(t, float_set) ? pt::exp_upper : pt::none;
case 'f':
return in(t, float_set) ? pt::fixed_lower : pt::none;
case 'F':
return in(t, float_set) ? pt::fixed_upper : pt::none;
case 'g':
return in(t, float_set) ? pt::general_lower : pt::none;
case 'G':
return in(t, float_set) ? pt::general_upper : pt::none;
case 'c':
return in(t, integral_set) ? pt::chr : pt::none;
case 's':
return in(t, string_set | cstring_set) ? pt::string : pt::none;
case 'p':
return in(t, pointer_set | cstring_set) ? pt::pointer : pt::none;
default:
return pt::none;
}
}
template <typename Char, typename Context>
void vprintf(buffer<Char>& buf, basic_string_view<Char> format,
basic_format_args<Context> args) {
using iterator = buffer_appender<Char>;
auto out = iterator(buf);
auto context = basic_printf_context<Char>(out, args);
auto parse_ctx = basic_format_parse_context<Char>(format);
// Returns the argument with specified index or, if arg_index is -1, the next
// argument.
auto get_arg = [&](int arg_index) {
if (arg_index < 0)
arg_index = parse_ctx.next_arg_id();
else
parse_ctx.check_arg_id(--arg_index);
return detail::get_arg(context, arg_index);
};
const Char* start = parse_ctx.begin();
const Char* end = parse_ctx.end();
auto it = start;
while (it != end) {
if (!find<false, Char>(it, end, '%', it)) {
it = end; // find leaves it == nullptr if it doesn't find '%'.
break;
}
Char c = *it++;
if (it != end && *it == c) {
write(out, basic_string_view<Char>(start, to_unsigned(it - start)));
start = ++it;
continue;
}
write(out, basic_string_view<Char>(start, to_unsigned(it - 1 - start)));
auto specs = format_specs<Char>();
specs.align = align::right;
// Parse argument index, flags and width.
int arg_index = parse_header(it, end, specs, get_arg);
if (arg_index == 0) throw_format_error("argument not found");
// Parse precision.
if (it != end && *it == '.') {
++it;
c = it != end ? *it : 0;
if ('0' <= c && c <= '9') {
specs.precision = parse_nonnegative_int(it, end, 0);
} else if (c == '*') {
++it;
specs.precision = static_cast<int>(
visit_format_arg(printf_precision_handler(), get_arg(-1)));
} else {
specs.precision = 0;
}
}
auto arg = get_arg(arg_index);
// For d, i, o, u, x, and X conversion specifiers, if a precision is
// specified, the '0' flag is ignored
if (specs.precision >= 0 && arg.is_integral()) {
// Ignore '0' for non-numeric types or if '-' present.
specs.fill[0] = ' ';
}
if (specs.precision >= 0 && arg.type() == type::cstring_type) {
auto str = visit_format_arg(get_cstring<Char>(), arg);
auto str_end = str + specs.precision;
auto nul = std::find(str, str_end, Char());
auto sv = basic_string_view<Char>(
str, to_unsigned(nul != str_end ? nul - str : specs.precision));
arg = make_arg<basic_printf_context<Char>>(sv);
}
if (specs.alt && visit_format_arg(is_zero_int(), arg)) specs.alt = false;
if (specs.fill[0] == '0') {
if (arg.is_arithmetic() && specs.align != align::left)
specs.align = align::numeric;
else
specs.fill[0] = ' '; // Ignore '0' flag for non-numeric types or if '-'
// flag is also present.
}
// Parse length and convert the argument to the required type.
c = it != end ? *it++ : 0;
Char t = it != end ? *it : 0;
switch (c) {
case 'h':
if (t == 'h') {
++it;
t = it != end ? *it : 0;
convert_arg<signed char>(arg, t);
} else {
convert_arg<short>(arg, t);
}
break;
case 'l':
if (t == 'l') {
++it;
t = it != end ? *it : 0;
convert_arg<long long>(arg, t);
} else {
convert_arg<long>(arg, t);
}
break;
case 'j':
convert_arg<intmax_t>(arg, t);
break;
case 'z':
convert_arg<size_t>(arg, t);
break;
case 't':
convert_arg<std::ptrdiff_t>(arg, t);
break;
case 'L':
// printf produces garbage when 'L' is omitted for long double, no
// need to do the same.
break;
default:
--it;
convert_arg<void>(arg, c);
}
// Parse type.
if (it == end) throw_format_error("invalid format string");
char type = static_cast<char>(*it++);
if (arg.is_integral()) {
// Normalize type.
switch (type) {
case 'i':
case 'u':
type = 'd';
break;
case 'c':
visit_format_arg(char_converter<basic_printf_context<Char>>(arg), arg);
break;
}
}
specs.type = parse_printf_presentation_type(type, arg.type());
if (specs.type == presentation_type::none)
throw_format_error("invalid format specifier");
start = it;
// Format argument.
visit_format_arg(printf_arg_formatter<Char>(out, specs, context), arg);
}
write(out, basic_string_view<Char>(start, to_unsigned(it - start)));
}
} // namespace detail
using printf_context = basic_printf_context<char>;
using wprintf_context = basic_printf_context<wchar_t>;
using printf_args = basic_format_args<printf_context>;
using wprintf_args = basic_format_args<wprintf_context>;
/**
\rst
Constructs an `~fmt::format_arg_store` object that contains references to
arguments and can be implicitly converted to `~fmt::printf_args`.
\endrst
*/
template <typename... T>
inline auto make_printf_args(const T&... args)
-> format_arg_store<printf_context, T...> {
return {args...};
}
// DEPRECATED!
template <typename... T>
inline auto make_wprintf_args(const T&... args)
-> format_arg_store<wprintf_context, T...> {
return {args...};
}
template <typename Char>
inline auto vsprintf(
basic_string_view<Char> fmt,
basic_format_args<basic_printf_context<type_identity_t<Char>>> args)
-> std::basic_string<Char> {
auto buf = basic_memory_buffer<Char>();
detail::vprintf(buf, fmt, args);
return to_string(buf);
}
/**
\rst
Formats arguments and returns the result as a string.
**Example**::
std::string message = fmt::sprintf("The answer is %d", 42);
\endrst
*/
template <typename S, typename... T,
typename Char = enable_if_t<detail::is_string<S>::value, char_t<S>>>
inline auto sprintf(const S& fmt, const T&... args) -> std::basic_string<Char> {
return vsprintf(detail::to_string_view(fmt),
fmt::make_format_args<basic_printf_context<Char>>(args...));
}
template <typename Char>
inline auto vfprintf(
std::FILE* f, basic_string_view<Char> fmt,
basic_format_args<basic_printf_context<type_identity_t<Char>>> args)
-> int {
auto buf = basic_memory_buffer<Char>();
detail::vprintf(buf, fmt, args);
size_t size = buf.size();
return std::fwrite(buf.data(), sizeof(Char), size, f) < size
? -1
: static_cast<int>(size);
}
/**
\rst
Prints formatted data to the file *f*.
**Example**::
fmt::fprintf(stderr, "Don't %s!", "panic");
\endrst
*/
template <typename S, typename... T, typename Char = char_t<S>>
inline auto fprintf(std::FILE* f, const S& fmt, const T&... args) -> int {
return vfprintf(f, detail::to_string_view(fmt),
fmt::make_format_args<basic_printf_context<Char>>(args...));
}
template <typename Char>
FMT_DEPRECATED inline auto vprintf(
basic_string_view<Char> fmt,
basic_format_args<basic_printf_context<type_identity_t<Char>>> args)
-> int {
return vfprintf(stdout, fmt, args);
}
/**
\rst
Prints formatted data to ``stdout``.
**Example**::
fmt::printf("Elapsed time: %.2f seconds", 1.23);
\endrst
*/
template <typename... T>
inline auto printf(string_view fmt, const T&... args) -> int {
return vfprintf(stdout, fmt, make_printf_args(args...));
}
template <typename... T>
FMT_DEPRECATED inline auto printf(basic_string_view<wchar_t> fmt,
const T&... args) -> int {
return vfprintf(stdout, fmt, make_wprintf_args(args...));
}
FMT_END_EXPORT
FMT_END_NAMESPACE
#endif // FMT_PRINTF_H_

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// Formatting library for C++ - range and tuple support
//
// Copyright (c) 2012 - present, Victor Zverovich and {fmt} contributors
// All rights reserved.
//
// For the license information refer to format.h.
#ifndef FMT_RANGES_H_
#define FMT_RANGES_H_
#include <initializer_list>
#include <tuple>
#include <type_traits>
#include "format.h"
FMT_BEGIN_NAMESPACE
namespace detail {
template <typename Range, typename OutputIt>
auto copy(const Range& range, OutputIt out) -> OutputIt {
for (auto it = range.begin(), end = range.end(); it != end; ++it)
*out++ = *it;
return out;
}
template <typename OutputIt>
auto copy(const char* str, OutputIt out) -> OutputIt {
while (*str) *out++ = *str++;
return out;
}
template <typename OutputIt> auto copy(char ch, OutputIt out) -> OutputIt {
*out++ = ch;
return out;
}
template <typename OutputIt> auto copy(wchar_t ch, OutputIt out) -> OutputIt {
*out++ = ch;
return out;
}
// Returns true if T has a std::string-like interface, like std::string_view.
template <typename T> class is_std_string_like {
template <typename U>
static auto check(U* p)
-> decltype((void)p->find('a'), p->length(), (void)p->data(), int());
template <typename> static void check(...);
public:
static constexpr const bool value =
is_string<T>::value ||
std::is_convertible<T, std_string_view<char>>::value ||
!std::is_void<decltype(check<T>(nullptr))>::value;
};
template <typename Char>
struct is_std_string_like<fmt::basic_string_view<Char>> : std::true_type {};
template <typename T> class is_map {
template <typename U> static auto check(U*) -> typename U::mapped_type;
template <typename> static void check(...);
public:
#ifdef FMT_FORMAT_MAP_AS_LIST // DEPRECATED!
static constexpr const bool value = false;
#else
static constexpr const bool value =
!std::is_void<decltype(check<T>(nullptr))>::value;
#endif
};
template <typename T> class is_set {
template <typename U> static auto check(U*) -> typename U::key_type;
template <typename> static void check(...);
public:
#ifdef FMT_FORMAT_SET_AS_LIST // DEPRECATED!
static constexpr const bool value = false;
#else
static constexpr const bool value =
!std::is_void<decltype(check<T>(nullptr))>::value && !is_map<T>::value;
#endif
};
template <typename... Ts> struct conditional_helper {};
template <typename T, typename _ = void> struct is_range_ : std::false_type {};
#if !FMT_MSC_VERSION || FMT_MSC_VERSION > 1800
# define FMT_DECLTYPE_RETURN(val) \
->decltype(val) { return val; } \
static_assert( \
true, "") // This makes it so that a semicolon is required after the
// macro, which helps clang-format handle the formatting.
// C array overload
template <typename T, std::size_t N>
auto range_begin(const T (&arr)[N]) -> const T* {
return arr;
}
template <typename T, std::size_t N>
auto range_end(const T (&arr)[N]) -> const T* {
return arr + N;
}
template <typename T, typename Enable = void>
struct has_member_fn_begin_end_t : std::false_type {};
template <typename T>
struct has_member_fn_begin_end_t<T, void_t<decltype(std::declval<T>().begin()),
decltype(std::declval<T>().end())>>
: std::true_type {};
// Member function overload
template <typename T>
auto range_begin(T&& rng) FMT_DECLTYPE_RETURN(static_cast<T&&>(rng).begin());
template <typename T>
auto range_end(T&& rng) FMT_DECLTYPE_RETURN(static_cast<T&&>(rng).end());
// ADL overload. Only participates in overload resolution if member functions
// are not found.
template <typename T>
auto range_begin(T&& rng)
-> enable_if_t<!has_member_fn_begin_end_t<T&&>::value,
decltype(begin(static_cast<T&&>(rng)))> {
return begin(static_cast<T&&>(rng));
}
template <typename T>
auto range_end(T&& rng) -> enable_if_t<!has_member_fn_begin_end_t<T&&>::value,
decltype(end(static_cast<T&&>(rng)))> {
return end(static_cast<T&&>(rng));
}
template <typename T, typename Enable = void>
struct has_const_begin_end : std::false_type {};
template <typename T, typename Enable = void>
struct has_mutable_begin_end : std::false_type {};
template <typename T>
struct has_const_begin_end<
T,
void_t<
decltype(detail::range_begin(std::declval<const remove_cvref_t<T>&>())),
decltype(detail::range_end(std::declval<const remove_cvref_t<T>&>()))>>
: std::true_type {};
template <typename T>
struct has_mutable_begin_end<
T, void_t<decltype(detail::range_begin(std::declval<T>())),
decltype(detail::range_end(std::declval<T>())),
// the extra int here is because older versions of MSVC don't
// SFINAE properly unless there are distinct types
int>> : std::true_type {};
template <typename T>
struct is_range_<T, void>
: std::integral_constant<bool, (has_const_begin_end<T>::value ||
has_mutable_begin_end<T>::value)> {};
# undef FMT_DECLTYPE_RETURN
#endif
// tuple_size and tuple_element check.
template <typename T> class is_tuple_like_ {
template <typename U>
static auto check(U* p) -> decltype(std::tuple_size<U>::value, int());
template <typename> static void check(...);
public:
static constexpr const bool value =
!std::is_void<decltype(check<T>(nullptr))>::value;
};
// Check for integer_sequence
#if defined(__cpp_lib_integer_sequence) || FMT_MSC_VERSION >= 1900
template <typename T, T... N>
using integer_sequence = std::integer_sequence<T, N...>;
template <size_t... N> using index_sequence = std::index_sequence<N...>;
template <size_t N> using make_index_sequence = std::make_index_sequence<N>;
#else
template <typename T, T... N> struct integer_sequence {
using value_type = T;
static FMT_CONSTEXPR auto size() -> size_t { return sizeof...(N); }
};
template <size_t... N> using index_sequence = integer_sequence<size_t, N...>;
template <typename T, size_t N, T... Ns>
struct make_integer_sequence : make_integer_sequence<T, N - 1, N - 1, Ns...> {};
template <typename T, T... Ns>
struct make_integer_sequence<T, 0, Ns...> : integer_sequence<T, Ns...> {};
template <size_t N>
using make_index_sequence = make_integer_sequence<size_t, N>;
#endif
template <typename T>
using tuple_index_sequence = make_index_sequence<std::tuple_size<T>::value>;
template <typename T, typename C, bool = is_tuple_like_<T>::value>
class is_tuple_formattable_ {
public:
static constexpr const bool value = false;
};
template <typename T, typename C> class is_tuple_formattable_<T, C, true> {
template <std::size_t... Is>
static auto check2(index_sequence<Is...>,
integer_sequence<bool, (Is == Is)...>) -> std::true_type;
static auto check2(...) -> std::false_type;
template <std::size_t... Is>
static auto check(index_sequence<Is...>) -> decltype(check2(
index_sequence<Is...>{},
integer_sequence<bool,
(is_formattable<typename std::tuple_element<Is, T>::type,
C>::value)...>{}));
public:
static constexpr const bool value =
decltype(check(tuple_index_sequence<T>{}))::value;
};
template <typename Tuple, typename F, size_t... Is>
FMT_CONSTEXPR void for_each(index_sequence<Is...>, Tuple&& t, F&& f) {
using std::get;
// Using a free function get<Is>(Tuple) now.
const int unused[] = {0, ((void)f(get<Is>(t)), 0)...};
ignore_unused(unused);
}
template <typename Tuple, typename F>
FMT_CONSTEXPR void for_each(Tuple&& t, F&& f) {
for_each(tuple_index_sequence<remove_cvref_t<Tuple>>(),
std::forward<Tuple>(t), std::forward<F>(f));
}
template <typename Tuple1, typename Tuple2, typename F, size_t... Is>
void for_each2(index_sequence<Is...>, Tuple1&& t1, Tuple2&& t2, F&& f) {
using std::get;
const int unused[] = {0, ((void)f(get<Is>(t1), get<Is>(t2)), 0)...};
ignore_unused(unused);
}
template <typename Tuple1, typename Tuple2, typename F>
void for_each2(Tuple1&& t1, Tuple2&& t2, F&& f) {
for_each2(tuple_index_sequence<remove_cvref_t<Tuple1>>(),
std::forward<Tuple1>(t1), std::forward<Tuple2>(t2),
std::forward<F>(f));
}
namespace tuple {
// Workaround a bug in MSVC 2019 (v140).
template <typename Char, typename... T>
using result_t = std::tuple<formatter<remove_cvref_t<T>, Char>...>;
using std::get;
template <typename Tuple, typename Char, std::size_t... Is>
auto get_formatters(index_sequence<Is...>)
-> result_t<Char, decltype(get<Is>(std::declval<Tuple>()))...>;
} // namespace tuple
#if FMT_MSC_VERSION && FMT_MSC_VERSION < 1920
// Older MSVC doesn't get the reference type correctly for arrays.
template <typename R> struct range_reference_type_impl {
using type = decltype(*detail::range_begin(std::declval<R&>()));
};
template <typename T, std::size_t N> struct range_reference_type_impl<T[N]> {
using type = T&;
};
template <typename T>
using range_reference_type = typename range_reference_type_impl<T>::type;
#else
template <typename Range>
using range_reference_type =
decltype(*detail::range_begin(std::declval<Range&>()));
#endif
// We don't use the Range's value_type for anything, but we do need the Range's
// reference type, with cv-ref stripped.
template <typename Range>
using uncvref_type = remove_cvref_t<range_reference_type<Range>>;
template <typename Formatter>
FMT_CONSTEXPR auto maybe_set_debug_format(Formatter& f, bool set)
-> decltype(f.set_debug_format(set)) {
f.set_debug_format(set);
}
template <typename Formatter>
FMT_CONSTEXPR void maybe_set_debug_format(Formatter&, ...) {}
// These are not generic lambdas for compatibility with C++11.
template <typename ParseContext> struct parse_empty_specs {
template <typename Formatter> FMT_CONSTEXPR void operator()(Formatter& f) {
f.parse(ctx);
detail::maybe_set_debug_format(f, true);
}
ParseContext& ctx;
};
template <typename FormatContext> struct format_tuple_element {
using char_type = typename FormatContext::char_type;
template <typename T>
void operator()(const formatter<T, char_type>& f, const T& v) {
if (i > 0)
ctx.advance_to(detail::copy_str<char_type>(separator, ctx.out()));
ctx.advance_to(f.format(v, ctx));
++i;
}
int i;
FormatContext& ctx;
basic_string_view<char_type> separator;
};
} // namespace detail
template <typename T> struct is_tuple_like {
static constexpr const bool value =
detail::is_tuple_like_<T>::value && !detail::is_range_<T>::value;
};
template <typename T, typename C> struct is_tuple_formattable {
static constexpr const bool value =
detail::is_tuple_formattable_<T, C>::value;
};
template <typename Tuple, typename Char>
struct formatter<Tuple, Char,
enable_if_t<fmt::is_tuple_like<Tuple>::value &&
fmt::is_tuple_formattable<Tuple, Char>::value>> {
private:
decltype(detail::tuple::get_formatters<Tuple, Char>(
detail::tuple_index_sequence<Tuple>())) formatters_;
basic_string_view<Char> separator_ = detail::string_literal<Char, ',', ' '>{};
basic_string_view<Char> opening_bracket_ =
detail::string_literal<Char, '('>{};
basic_string_view<Char> closing_bracket_ =
detail::string_literal<Char, ')'>{};
public:
FMT_CONSTEXPR formatter() {}
FMT_CONSTEXPR void set_separator(basic_string_view<Char> sep) {
separator_ = sep;
}
FMT_CONSTEXPR void set_brackets(basic_string_view<Char> open,
basic_string_view<Char> close) {
opening_bracket_ = open;
closing_bracket_ = close;
}
template <typename ParseContext>
FMT_CONSTEXPR auto parse(ParseContext& ctx) -> decltype(ctx.begin()) {
auto it = ctx.begin();
if (it != ctx.end() && *it != '}')
FMT_THROW(format_error("invalid format specifier"));
detail::for_each(formatters_, detail::parse_empty_specs<ParseContext>{ctx});
return it;
}
template <typename FormatContext>
auto format(const Tuple& value, FormatContext& ctx) const
-> decltype(ctx.out()) {
ctx.advance_to(detail::copy_str<Char>(opening_bracket_, ctx.out()));
detail::for_each2(
formatters_, value,
detail::format_tuple_element<FormatContext>{0, ctx, separator_});
return detail::copy_str<Char>(closing_bracket_, ctx.out());
}
};
template <typename T, typename Char> struct is_range {
static constexpr const bool value =
detail::is_range_<T>::value && !detail::is_std_string_like<T>::value &&
!std::is_convertible<T, std::basic_string<Char>>::value &&
!std::is_convertible<T, detail::std_string_view<Char>>::value;
};
namespace detail {
template <typename Context> struct range_mapper {
using mapper = arg_mapper<Context>;
template <typename T,
FMT_ENABLE_IF(has_formatter<remove_cvref_t<T>, Context>::value)>
static auto map(T&& value) -> T&& {
return static_cast<T&&>(value);
}
template <typename T,
FMT_ENABLE_IF(!has_formatter<remove_cvref_t<T>, Context>::value)>
static auto map(T&& value)
-> decltype(mapper().map(static_cast<T&&>(value))) {
return mapper().map(static_cast<T&&>(value));
}
};
template <typename Char, typename Element>
using range_formatter_type =
formatter<remove_cvref_t<decltype(range_mapper<buffer_context<Char>>{}.map(
std::declval<Element>()))>,
Char>;
template <typename R>
using maybe_const_range =
conditional_t<has_const_begin_end<R>::value, const R, R>;
// Workaround a bug in MSVC 2015 and earlier.
#if !FMT_MSC_VERSION || FMT_MSC_VERSION >= 1910
template <typename R, typename Char>
struct is_formattable_delayed
: is_formattable<uncvref_type<maybe_const_range<R>>, Char> {};
#endif
} // namespace detail
template <typename...> struct conjunction : std::true_type {};
template <typename P> struct conjunction<P> : P {};
template <typename P1, typename... Pn>
struct conjunction<P1, Pn...>
: conditional_t<bool(P1::value), conjunction<Pn...>, P1> {};
template <typename T, typename Char, typename Enable = void>
struct range_formatter;
template <typename T, typename Char>
struct range_formatter<
T, Char,
enable_if_t<conjunction<std::is_same<T, remove_cvref_t<T>>,
is_formattable<T, Char>>::value>> {
private:
detail::range_formatter_type<Char, T> underlying_;
basic_string_view<Char> separator_ = detail::string_literal<Char, ',', ' '>{};
basic_string_view<Char> opening_bracket_ =
detail::string_literal<Char, '['>{};
basic_string_view<Char> closing_bracket_ =
detail::string_literal<Char, ']'>{};
public:
FMT_CONSTEXPR range_formatter() {}
FMT_CONSTEXPR auto underlying() -> detail::range_formatter_type<Char, T>& {
return underlying_;
}
FMT_CONSTEXPR void set_separator(basic_string_view<Char> sep) {
separator_ = sep;
}
FMT_CONSTEXPR void set_brackets(basic_string_view<Char> open,
basic_string_view<Char> close) {
opening_bracket_ = open;
closing_bracket_ = close;
}
template <typename ParseContext>
FMT_CONSTEXPR auto parse(ParseContext& ctx) -> decltype(ctx.begin()) {
auto it = ctx.begin();
auto end = ctx.end();
if (it != end && *it == 'n') {
set_brackets({}, {});
++it;
}
if (it != end && *it != '}') {
if (*it != ':') FMT_THROW(format_error("invalid format specifier"));
++it;
} else {
detail::maybe_set_debug_format(underlying_, true);
}
ctx.advance_to(it);
return underlying_.parse(ctx);
}
template <typename R, typename FormatContext>
auto format(R&& range, FormatContext& ctx) const -> decltype(ctx.out()) {
detail::range_mapper<buffer_context<Char>> mapper;
auto out = ctx.out();
out = detail::copy_str<Char>(opening_bracket_, out);
int i = 0;
auto it = detail::range_begin(range);
auto end = detail::range_end(range);
for (; it != end; ++it) {
if (i > 0) out = detail::copy_str<Char>(separator_, out);
ctx.advance_to(out);
auto&& item = *it;
out = underlying_.format(mapper.map(item), ctx);
++i;
}
out = detail::copy_str<Char>(closing_bracket_, out);
return out;
}
};
enum class range_format { disabled, map, set, sequence, string, debug_string };
namespace detail {
template <typename T>
struct range_format_kind_
: std::integral_constant<range_format,
std::is_same<uncvref_type<T>, T>::value
? range_format::disabled
: is_map<T>::value ? range_format::map
: is_set<T>::value ? range_format::set
: range_format::sequence> {};
template <range_format K, typename R, typename Char, typename Enable = void>
struct range_default_formatter;
template <range_format K>
using range_format_constant = std::integral_constant<range_format, K>;
template <range_format K, typename R, typename Char>
struct range_default_formatter<
K, R, Char,
enable_if_t<(K == range_format::sequence || K == range_format::map ||
K == range_format::set)>> {
using range_type = detail::maybe_const_range<R>;
range_formatter<detail::uncvref_type<range_type>, Char> underlying_;
FMT_CONSTEXPR range_default_formatter() { init(range_format_constant<K>()); }
FMT_CONSTEXPR void init(range_format_constant<range_format::set>) {
underlying_.set_brackets(detail::string_literal<Char, '{'>{},
detail::string_literal<Char, '}'>{});
}
FMT_CONSTEXPR void init(range_format_constant<range_format::map>) {
underlying_.set_brackets(detail::string_literal<Char, '{'>{},
detail::string_literal<Char, '}'>{});
underlying_.underlying().set_brackets({}, {});
underlying_.underlying().set_separator(
detail::string_literal<Char, ':', ' '>{});
}
FMT_CONSTEXPR void init(range_format_constant<range_format::sequence>) {}
template <typename ParseContext>
FMT_CONSTEXPR auto parse(ParseContext& ctx) -> decltype(ctx.begin()) {
return underlying_.parse(ctx);
}
template <typename FormatContext>
auto format(range_type& range, FormatContext& ctx) const
-> decltype(ctx.out()) {
return underlying_.format(range, ctx);
}
};
} // namespace detail
template <typename T, typename Char, typename Enable = void>
struct range_format_kind
: conditional_t<
is_range<T, Char>::value, detail::range_format_kind_<T>,
std::integral_constant<range_format, range_format::disabled>> {};
template <typename R, typename Char>
struct formatter<
R, Char,
enable_if_t<conjunction<bool_constant<range_format_kind<R, Char>::value !=
range_format::disabled>
// Workaround a bug in MSVC 2015 and earlier.
#if !FMT_MSC_VERSION || FMT_MSC_VERSION >= 1910
,
detail::is_formattable_delayed<R, Char>
#endif
>::value>>
: detail::range_default_formatter<range_format_kind<R, Char>::value, R,
Char> {
};
template <typename Char, typename... T> struct tuple_join_view : detail::view {
const std::tuple<T...>& tuple;
basic_string_view<Char> sep;
tuple_join_view(const std::tuple<T...>& t, basic_string_view<Char> s)
: tuple(t), sep{s} {}
};
// Define FMT_TUPLE_JOIN_SPECIFIERS to enable experimental format specifiers
// support in tuple_join. It is disabled by default because of issues with
// the dynamic width and precision.
#ifndef FMT_TUPLE_JOIN_SPECIFIERS
# define FMT_TUPLE_JOIN_SPECIFIERS 0
#endif
template <typename Char, typename... T>
struct formatter<tuple_join_view<Char, T...>, Char> {
template <typename ParseContext>
FMT_CONSTEXPR auto parse(ParseContext& ctx) -> decltype(ctx.begin()) {
return do_parse(ctx, std::integral_constant<size_t, sizeof...(T)>());
}
template <typename FormatContext>
auto format(const tuple_join_view<Char, T...>& value,
FormatContext& ctx) const -> typename FormatContext::iterator {
return do_format(value, ctx,
std::integral_constant<size_t, sizeof...(T)>());
}
private:
std::tuple<formatter<typename std::decay<T>::type, Char>...> formatters_;
template <typename ParseContext>
FMT_CONSTEXPR auto do_parse(ParseContext& ctx,
std::integral_constant<size_t, 0>)
-> decltype(ctx.begin()) {
return ctx.begin();
}
template <typename ParseContext, size_t N>
FMT_CONSTEXPR auto do_parse(ParseContext& ctx,
std::integral_constant<size_t, N>)
-> decltype(ctx.begin()) {
auto end = ctx.begin();
#if FMT_TUPLE_JOIN_SPECIFIERS
end = std::get<sizeof...(T) - N>(formatters_).parse(ctx);
if (N > 1) {
auto end1 = do_parse(ctx, std::integral_constant<size_t, N - 1>());
if (end != end1)
FMT_THROW(format_error("incompatible format specs for tuple elements"));
}
#endif
return end;
}
template <typename FormatContext>
auto do_format(const tuple_join_view<Char, T...>&, FormatContext& ctx,
std::integral_constant<size_t, 0>) const ->
typename FormatContext::iterator {
return ctx.out();
}
template <typename FormatContext, size_t N>
auto do_format(const tuple_join_view<Char, T...>& value, FormatContext& ctx,
std::integral_constant<size_t, N>) const ->
typename FormatContext::iterator {
auto out = std::get<sizeof...(T) - N>(formatters_)
.format(std::get<sizeof...(T) - N>(value.tuple), ctx);
if (N > 1) {
out = std::copy(value.sep.begin(), value.sep.end(), out);
ctx.advance_to(out);
return do_format(value, ctx, std::integral_constant<size_t, N - 1>());
}
return out;
}
};
namespace detail {
// Check if T has an interface like a container adaptor (e.g. std::stack,
// std::queue, std::priority_queue).
template <typename T> class is_container_adaptor_like {
template <typename U> static auto check(U* p) -> typename U::container_type;
template <typename> static void check(...);
public:
static constexpr const bool value =
!std::is_void<decltype(check<T>(nullptr))>::value;
};
template <typename Container> struct all {
const Container& c;
auto begin() const -> typename Container::const_iterator { return c.begin(); }
auto end() const -> typename Container::const_iterator { return c.end(); }
};
} // namespace detail
template <typename T, typename Char>
struct formatter<
T, Char,
enable_if_t<conjunction<detail::is_container_adaptor_like<T>,
bool_constant<range_format_kind<T, Char>::value ==
range_format::disabled>>::value>>
: formatter<detail::all<typename T::container_type>, Char> {
using all = detail::all<typename T::container_type>;
template <typename FormatContext>
auto format(const T& t, FormatContext& ctx) const -> decltype(ctx.out()) {
struct getter : T {
static auto get(const T& t) -> all {
return {t.*(&getter::c)}; // Access c through the derived class.
}
};
return formatter<all>::format(getter::get(t), ctx);
}
};
FMT_BEGIN_EXPORT
/**
\rst
Returns an object that formats `tuple` with elements separated by `sep`.
**Example**::
std::tuple<int, char> t = {1, 'a'};
fmt::print("{}", fmt::join(t, ", "));
// Output: "1, a"
\endrst
*/
template <typename... T>
FMT_CONSTEXPR auto join(const std::tuple<T...>& tuple, string_view sep)
-> tuple_join_view<char, T...> {
return {tuple, sep};
}
template <typename... T>
FMT_CONSTEXPR auto join(const std::tuple<T...>& tuple,
basic_string_view<wchar_t> sep)
-> tuple_join_view<wchar_t, T...> {
return {tuple, sep};
}
/**
\rst
Returns an object that formats `initializer_list` with elements separated by
`sep`.
**Example**::
fmt::print("{}", fmt::join({1, 2, 3}, ", "));
// Output: "1, 2, 3"
\endrst
*/
template <typename T>
auto join(std::initializer_list<T> list, string_view sep)
-> join_view<const T*, const T*> {
return join(std::begin(list), std::end(list), sep);
}
FMT_END_EXPORT
FMT_END_NAMESPACE
#endif // FMT_RANGES_H_

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// Formatting library for C++ - formatters for standard library types
//
// Copyright (c) 2012 - present, Victor Zverovich
// All rights reserved.
//
// For the license information refer to format.h.
#ifndef FMT_STD_H_
#define FMT_STD_H_
#include <atomic>
#include <bitset>
#include <cstdlib>
#include <exception>
#include <memory>
#include <thread>
#include <type_traits>
#include <typeinfo>
#include <utility>
#include <vector>
#include "format.h"
#include "ostream.h"
#if FMT_HAS_INCLUDE(<version>)
# include <version>
#endif
// Checking FMT_CPLUSPLUS for warning suppression in MSVC.
#if FMT_CPLUSPLUS >= 201703L
# if FMT_HAS_INCLUDE(<filesystem>)
# include <filesystem>
# endif
# if FMT_HAS_INCLUDE(<variant>)
# include <variant>
# endif
# if FMT_HAS_INCLUDE(<optional>)
# include <optional>
# endif
#endif
#if FMT_CPLUSPLUS > 201703L && FMT_HAS_INCLUDE(<source_location>)
# include <source_location>
#endif
// GCC 4 does not support FMT_HAS_INCLUDE.
#if FMT_HAS_INCLUDE(<cxxabi.h>) || defined(__GLIBCXX__)
# include <cxxabi.h>
// Android NDK with gabi++ library on some architectures does not implement
// abi::__cxa_demangle().
# ifndef __GABIXX_CXXABI_H__
# define FMT_HAS_ABI_CXA_DEMANGLE
# endif
#endif
// Check if typeid is available.
#ifndef FMT_USE_TYPEID
// __RTTI is for EDG compilers. In MSVC typeid is available without RTTI.
# if defined(__GXX_RTTI) || FMT_HAS_FEATURE(cxx_rtti) || FMT_MSC_VERSION || \
defined(__INTEL_RTTI__) || defined(__RTTI)
# define FMT_USE_TYPEID 1
# else
# define FMT_USE_TYPEID 0
# endif
#endif
// For older Xcode versions, __cpp_lib_xxx flags are inaccurately defined.
#ifndef FMT_CPP_LIB_FILESYSTEM
# ifdef __cpp_lib_filesystem
# define FMT_CPP_LIB_FILESYSTEM __cpp_lib_filesystem
# else
# define FMT_CPP_LIB_FILESYSTEM 0
# endif
#endif
#ifndef FMT_CPP_LIB_VARIANT
# ifdef __cpp_lib_variant
# define FMT_CPP_LIB_VARIANT __cpp_lib_variant
# else
# define FMT_CPP_LIB_VARIANT 0
# endif
#endif
#if FMT_CPP_LIB_FILESYSTEM
FMT_BEGIN_NAMESPACE
namespace detail {
template <typename Char, typename PathChar>
auto get_path_string(const std::filesystem::path& p,
const std::basic_string<PathChar>& native) {
if constexpr (std::is_same_v<Char, char> && std::is_same_v<PathChar, wchar_t>)
return to_utf8<wchar_t>(native, to_utf8_error_policy::replace);
else
return p.string<Char>();
}
template <typename Char, typename PathChar>
void write_escaped_path(basic_memory_buffer<Char>& quoted,
const std::filesystem::path& p,
const std::basic_string<PathChar>& native) {
if constexpr (std::is_same_v<Char, char> &&
std::is_same_v<PathChar, wchar_t>) {
auto buf = basic_memory_buffer<wchar_t>();
write_escaped_string<wchar_t>(std::back_inserter(buf), native);
bool valid = to_utf8<wchar_t>::convert(quoted, {buf.data(), buf.size()});
FMT_ASSERT(valid, "invalid utf16");
} else if constexpr (std::is_same_v<Char, PathChar>) {
write_escaped_string<std::filesystem::path::value_type>(
std::back_inserter(quoted), native);
} else {
write_escaped_string<Char>(std::back_inserter(quoted), p.string<Char>());
}
}
} // namespace detail
FMT_EXPORT
template <typename Char> struct formatter<std::filesystem::path, Char> {
private:
format_specs<Char> specs_;
detail::arg_ref<Char> width_ref_;
bool debug_ = false;
char path_type_ = 0;
public:
FMT_CONSTEXPR void set_debug_format(bool set = true) { debug_ = set; }
template <typename ParseContext> FMT_CONSTEXPR auto parse(ParseContext& ctx) {
auto it = ctx.begin(), end = ctx.end();
if (it == end) return it;
it = detail::parse_align(it, end, specs_);
if (it == end) return it;
it = detail::parse_dynamic_spec(it, end, specs_.width, width_ref_, ctx);
if (it != end && *it == '?') {
debug_ = true;
++it;
}
if (it != end && (*it == 'g')) path_type_ = *it++;
return it;
}
template <typename FormatContext>
auto format(const std::filesystem::path& p, FormatContext& ctx) const {
auto specs = specs_;
# ifdef _WIN32
auto path_string = !path_type_ ? p.native() : p.generic_wstring();
# else
auto path_string = !path_type_ ? p.native() : p.generic_string();
# endif
detail::handle_dynamic_spec<detail::width_checker>(specs.width, width_ref_,
ctx);
if (!debug_) {
auto s = detail::get_path_string<Char>(p, path_string);
return detail::write(ctx.out(), basic_string_view<Char>(s), specs);
}
auto quoted = basic_memory_buffer<Char>();
detail::write_escaped_path(quoted, p, path_string);
return detail::write(ctx.out(),
basic_string_view<Char>(quoted.data(), quoted.size()),
specs);
}
};
FMT_END_NAMESPACE
#endif // FMT_CPP_LIB_FILESYSTEM
FMT_BEGIN_NAMESPACE
FMT_EXPORT
template <std::size_t N, typename Char>
struct formatter<std::bitset<N>, Char> : nested_formatter<string_view> {
private:
// Functor because C++11 doesn't support generic lambdas.
struct writer {
const std::bitset<N>& bs;
template <typename OutputIt>
FMT_CONSTEXPR auto operator()(OutputIt out) -> OutputIt {
for (auto pos = N; pos > 0; --pos) {
out = detail::write<Char>(out, bs[pos - 1] ? Char('1') : Char('0'));
}
return out;
}
};
public:
template <typename FormatContext>
auto format(const std::bitset<N>& bs, FormatContext& ctx) const
-> decltype(ctx.out()) {
return write_padded(ctx, writer{bs});
}
};
FMT_EXPORT
template <typename Char>
struct formatter<std::thread::id, Char> : basic_ostream_formatter<Char> {};
FMT_END_NAMESPACE
#ifdef __cpp_lib_optional
FMT_BEGIN_NAMESPACE
FMT_EXPORT
template <typename T, typename Char>
struct formatter<std::optional<T>, Char,
std::enable_if_t<is_formattable<T, Char>::value>> {
private:
formatter<T, Char> underlying_;
static constexpr basic_string_view<Char> optional =
detail::string_literal<Char, 'o', 'p', 't', 'i', 'o', 'n', 'a', 'l',
'('>{};
static constexpr basic_string_view<Char> none =
detail::string_literal<Char, 'n', 'o', 'n', 'e'>{};
template <class U>
FMT_CONSTEXPR static auto maybe_set_debug_format(U& u, bool set)
-> decltype(u.set_debug_format(set)) {
u.set_debug_format(set);
}
template <class U>
FMT_CONSTEXPR static void maybe_set_debug_format(U&, ...) {}
public:
template <typename ParseContext> FMT_CONSTEXPR auto parse(ParseContext& ctx) {
maybe_set_debug_format(underlying_, true);
return underlying_.parse(ctx);
}
template <typename FormatContext>
auto format(const std::optional<T>& opt, FormatContext& ctx) const
-> decltype(ctx.out()) {
if (!opt) return detail::write<Char>(ctx.out(), none);
auto out = ctx.out();
out = detail::write<Char>(out, optional);
ctx.advance_to(out);
out = underlying_.format(*opt, ctx);
return detail::write(out, ')');
}
};
FMT_END_NAMESPACE
#endif // __cpp_lib_optional
#ifdef __cpp_lib_source_location
FMT_BEGIN_NAMESPACE
FMT_EXPORT
template <> struct formatter<std::source_location> {
template <typename ParseContext> FMT_CONSTEXPR auto parse(ParseContext& ctx) {
return ctx.begin();
}
template <typename FormatContext>
auto format(const std::source_location& loc, FormatContext& ctx) const
-> decltype(ctx.out()) {
auto out = ctx.out();
out = detail::write(out, loc.file_name());
out = detail::write(out, ':');
out = detail::write<char>(out, loc.line());
out = detail::write(out, ':');
out = detail::write<char>(out, loc.column());
out = detail::write(out, ": ");
out = detail::write(out, loc.function_name());
return out;
}
};
FMT_END_NAMESPACE
#endif
#if FMT_CPP_LIB_VARIANT
FMT_BEGIN_NAMESPACE
namespace detail {
template <typename T>
using variant_index_sequence =
std::make_index_sequence<std::variant_size<T>::value>;
template <typename> struct is_variant_like_ : std::false_type {};
template <typename... Types>
struct is_variant_like_<std::variant<Types...>> : std::true_type {};
// formattable element check.
template <typename T, typename C> class is_variant_formattable_ {
template <std::size_t... Is>
static std::conjunction<
is_formattable<std::variant_alternative_t<Is, T>, C>...>
check(std::index_sequence<Is...>);
public:
static constexpr const bool value =
decltype(check(variant_index_sequence<T>{}))::value;
};
template <typename Char, typename OutputIt, typename T>
auto write_variant_alternative(OutputIt out, const T& v) -> OutputIt {
if constexpr (is_string<T>::value)
return write_escaped_string<Char>(out, detail::to_string_view(v));
else if constexpr (std::is_same_v<T, Char>)
return write_escaped_char(out, v);
else
return write<Char>(out, v);
}
} // namespace detail
template <typename T> struct is_variant_like {
static constexpr const bool value = detail::is_variant_like_<T>::value;
};
template <typename T, typename C> struct is_variant_formattable {
static constexpr const bool value =
detail::is_variant_formattable_<T, C>::value;
};
FMT_EXPORT
template <typename Char> struct formatter<std::monostate, Char> {
template <typename ParseContext>
FMT_CONSTEXPR auto parse(ParseContext& ctx) -> decltype(ctx.begin()) {
return ctx.begin();
}
template <typename FormatContext>
auto format(const std::monostate&, FormatContext& ctx) const
-> decltype(ctx.out()) {
return detail::write<Char>(ctx.out(), "monostate");
}
};
FMT_EXPORT
template <typename Variant, typename Char>
struct formatter<
Variant, Char,
std::enable_if_t<std::conjunction_v<
is_variant_like<Variant>, is_variant_formattable<Variant, Char>>>> {
template <typename ParseContext>
FMT_CONSTEXPR auto parse(ParseContext& ctx) -> decltype(ctx.begin()) {
return ctx.begin();
}
template <typename FormatContext>
auto format(const Variant& value, FormatContext& ctx) const
-> decltype(ctx.out()) {
auto out = ctx.out();
out = detail::write<Char>(out, "variant(");
FMT_TRY {
std::visit(
[&](const auto& v) {
out = detail::write_variant_alternative<Char>(out, v);
},
value);
}
FMT_CATCH(const std::bad_variant_access&) {
detail::write<Char>(out, "valueless by exception");
}
*out++ = ')';
return out;
}
};
FMT_END_NAMESPACE
#endif // FMT_CPP_LIB_VARIANT
FMT_BEGIN_NAMESPACE
FMT_EXPORT
template <typename Char> struct formatter<std::error_code, Char> {
template <typename ParseContext>
FMT_CONSTEXPR auto parse(ParseContext& ctx) -> decltype(ctx.begin()) {
return ctx.begin();
}
template <typename FormatContext>
FMT_CONSTEXPR auto format(const std::error_code& ec, FormatContext& ctx) const
-> decltype(ctx.out()) {
auto out = ctx.out();
out = detail::write_bytes(out, ec.category().name(), format_specs<Char>());
out = detail::write<Char>(out, Char(':'));
out = detail::write<Char>(out, ec.value());
return out;
}
};
FMT_EXPORT
template <typename T, typename Char>
struct formatter<
T, Char, // DEPRECATED! Mixing code unit types.
typename std::enable_if<std::is_base_of<std::exception, T>::value>::type> {
private:
bool with_typename_ = false;
public:
FMT_CONSTEXPR auto parse(basic_format_parse_context<Char>& ctx)
-> decltype(ctx.begin()) {
auto it = ctx.begin();
auto end = ctx.end();
if (it == end || *it == '}') return it;
if (*it == 't') {
++it;
with_typename_ = FMT_USE_TYPEID != 0;
}
return it;
}
template <typename OutputIt>
auto format(const std::exception& ex,
basic_format_context<OutputIt, Char>& ctx) const -> OutputIt {
format_specs<Char> spec;
auto out = ctx.out();
if (!with_typename_)
return detail::write_bytes(out, string_view(ex.what()), spec);
#if FMT_USE_TYPEID
const std::type_info& ti = typeid(ex);
# ifdef FMT_HAS_ABI_CXA_DEMANGLE
int status = 0;
std::size_t size = 0;
std::unique_ptr<char, void (*)(void*)> demangled_name_ptr(
abi::__cxa_demangle(ti.name(), nullptr, &size, &status), &std::free);
string_view demangled_name_view;
if (demangled_name_ptr) {
demangled_name_view = demangled_name_ptr.get();
// Normalization of stdlib inline namespace names.
// libc++ inline namespaces.
// std::__1::* -> std::*
// std::__1::__fs::* -> std::*
// libstdc++ inline namespaces.
// std::__cxx11::* -> std::*
// std::filesystem::__cxx11::* -> std::filesystem::*
if (demangled_name_view.starts_with("std::")) {
char* begin = demangled_name_ptr.get();
char* to = begin + 5; // std::
for (char *from = to, *end = begin + demangled_name_view.size();
from < end;) {
// This is safe, because demangled_name is NUL-terminated.
if (from[0] == '_' && from[1] == '_') {
char* next = from + 1;
while (next < end && *next != ':') next++;
if (next[0] == ':' && next[1] == ':') {
from = next + 2;
continue;
}
}
*to++ = *from++;
}
demangled_name_view = {begin, detail::to_unsigned(to - begin)};
}
} else {
demangled_name_view = string_view(ti.name());
}
out = detail::write_bytes(out, demangled_name_view, spec);
# elif FMT_MSC_VERSION
string_view demangled_name_view(ti.name());
if (demangled_name_view.starts_with("class "))
demangled_name_view.remove_prefix(6);
else if (demangled_name_view.starts_with("struct "))
demangled_name_view.remove_prefix(7);
out = detail::write_bytes(out, demangled_name_view, spec);
# else
out = detail::write_bytes(out, string_view(ti.name()), spec);
# endif
*out++ = ':';
*out++ = ' ';
return detail::write_bytes(out, string_view(ex.what()), spec);
#endif
}
};
namespace detail {
template <typename T, typename Enable = void>
struct has_flip : std::false_type {};
template <typename T>
struct has_flip<T, void_t<decltype(std::declval<T>().flip())>>
: std::true_type {};
template <typename T> struct is_bit_reference_like {
static constexpr const bool value =
std::is_convertible<T, bool>::value &&
std::is_nothrow_assignable<T, bool>::value && has_flip<T>::value;
};
#ifdef _LIBCPP_VERSION
// Workaround for libc++ incompatibility with C++ standard.
// According to the Standard, `bitset::operator[] const` returns bool.
template <typename C>
struct is_bit_reference_like<std::__bit_const_reference<C>> {
static constexpr const bool value = true;
};
#endif
} // namespace detail
// We can't use std::vector<bool, Allocator>::reference and
// std::bitset<N>::reference because the compiler can't deduce Allocator and N
// in partial specialization.
FMT_EXPORT
template <typename BitRef, typename Char>
struct formatter<BitRef, Char,
enable_if_t<detail::is_bit_reference_like<BitRef>::value>>
: formatter<bool, Char> {
template <typename FormatContext>
FMT_CONSTEXPR auto format(const BitRef& v, FormatContext& ctx) const
-> decltype(ctx.out()) {
return formatter<bool, Char>::format(v, ctx);
}
};
FMT_EXPORT
template <typename T, typename Char>
struct formatter<std::atomic<T>, Char,
enable_if_t<is_formattable<T, Char>::value>>
: formatter<T, Char> {
template <typename FormatContext>
auto format(const std::atomic<T>& v, FormatContext& ctx) const
-> decltype(ctx.out()) {
return formatter<T, Char>::format(v.load(), ctx);
}
};
#ifdef __cpp_lib_atomic_flag_test
FMT_EXPORT
template <typename Char>
struct formatter<std::atomic_flag, Char> : formatter<bool, Char> {
template <typename FormatContext>
auto format(const std::atomic_flag& v, FormatContext& ctx) const
-> decltype(ctx.out()) {
return formatter<bool, Char>::format(v.test(), ctx);
}
};
#endif // __cpp_lib_atomic_flag_test
FMT_END_NAMESPACE
#endif // FMT_STD_H_

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// Formatting library for C++ - optional wchar_t and exotic character support
//
// Copyright (c) 2012 - present, Victor Zverovich
// All rights reserved.
//
// For the license information refer to format.h.
#ifndef FMT_XCHAR_H_
#define FMT_XCHAR_H_
#include <cwchar>
#include "format.h"
#ifndef FMT_STATIC_THOUSANDS_SEPARATOR
# include <locale>
#endif
FMT_BEGIN_NAMESPACE
namespace detail {
template <typename T>
using is_exotic_char = bool_constant<!std::is_same<T, char>::value>;
inline auto write_loc(std::back_insert_iterator<detail::buffer<wchar_t>> out,
loc_value value, const format_specs<wchar_t>& specs,
locale_ref loc) -> bool {
#ifndef FMT_STATIC_THOUSANDS_SEPARATOR
auto& numpunct =
std::use_facet<std::numpunct<wchar_t>>(loc.get<std::locale>());
auto separator = std::wstring();
auto grouping = numpunct.grouping();
if (!grouping.empty()) separator = std::wstring(1, numpunct.thousands_sep());
return value.visit(loc_writer<wchar_t>{out, specs, separator, grouping, {}});
#endif
return false;
}
} // namespace detail
FMT_BEGIN_EXPORT
using wstring_view = basic_string_view<wchar_t>;
using wformat_parse_context = basic_format_parse_context<wchar_t>;
using wformat_context = buffer_context<wchar_t>;
using wformat_args = basic_format_args<wformat_context>;
using wmemory_buffer = basic_memory_buffer<wchar_t>;
#if FMT_GCC_VERSION && FMT_GCC_VERSION < 409
// Workaround broken conversion on older gcc.
template <typename... Args> using wformat_string = wstring_view;
inline auto runtime(wstring_view s) -> wstring_view { return s; }
#else
template <typename... Args>
using wformat_string = basic_format_string<wchar_t, type_identity_t<Args>...>;
inline auto runtime(wstring_view s) -> runtime_format_string<wchar_t> {
return {{s}};
}
#endif
template <> struct is_char<wchar_t> : std::true_type {};
template <> struct is_char<detail::char8_type> : std::true_type {};
template <> struct is_char<char16_t> : std::true_type {};
template <> struct is_char<char32_t> : std::true_type {};
template <typename... T>
constexpr auto make_wformat_args(const T&... args)
-> format_arg_store<wformat_context, T...> {
return {args...};
}
inline namespace literals {
#if FMT_USE_USER_DEFINED_LITERALS && !FMT_USE_NONTYPE_TEMPLATE_ARGS
constexpr auto operator""_a(const wchar_t* s, size_t)
-> detail::udl_arg<wchar_t> {
return {s};
}
#endif
} // namespace literals
template <typename It, typename Sentinel>
auto join(It begin, Sentinel end, wstring_view sep)
-> join_view<It, Sentinel, wchar_t> {
return {begin, end, sep};
}
template <typename Range>
auto join(Range&& range, wstring_view sep)
-> join_view<detail::iterator_t<Range>, detail::sentinel_t<Range>,
wchar_t> {
return join(std::begin(range), std::end(range), sep);
}
template <typename T>
auto join(std::initializer_list<T> list, wstring_view sep)
-> join_view<const T*, const T*, wchar_t> {
return join(std::begin(list), std::end(list), sep);
}
template <typename Char, FMT_ENABLE_IF(!std::is_same<Char, char>::value)>
auto vformat(basic_string_view<Char> format_str,
basic_format_args<buffer_context<type_identity_t<Char>>> args)
-> std::basic_string<Char> {
auto buf = basic_memory_buffer<Char>();
detail::vformat_to(buf, format_str, args);
return to_string(buf);
}
template <typename... T>
auto format(wformat_string<T...> fmt, T&&... args) -> std::wstring {
return vformat(fmt::wstring_view(fmt), fmt::make_wformat_args(args...));
}
// Pass char_t as a default template parameter instead of using
// std::basic_string<char_t<S>> to reduce the symbol size.
template <typename S, typename... T, typename Char = char_t<S>,
FMT_ENABLE_IF(!std::is_same<Char, char>::value &&
!std::is_same<Char, wchar_t>::value)>
auto format(const S& format_str, T&&... args) -> std::basic_string<Char> {
return vformat(detail::to_string_view(format_str),
fmt::make_format_args<buffer_context<Char>>(args...));
}
template <typename Locale, typename S, typename Char = char_t<S>,
FMT_ENABLE_IF(detail::is_locale<Locale>::value&&
detail::is_exotic_char<Char>::value)>
inline auto vformat(
const Locale& loc, const S& format_str,
basic_format_args<buffer_context<type_identity_t<Char>>> args)
-> std::basic_string<Char> {
return detail::vformat(loc, detail::to_string_view(format_str), args);
}
template <typename Locale, typename S, typename... T, typename Char = char_t<S>,
FMT_ENABLE_IF(detail::is_locale<Locale>::value&&
detail::is_exotic_char<Char>::value)>
inline auto format(const Locale& loc, const S& format_str, T&&... args)
-> std::basic_string<Char> {
return detail::vformat(loc, detail::to_string_view(format_str),
fmt::make_format_args<buffer_context<Char>>(args...));
}
template <typename OutputIt, typename S, typename Char = char_t<S>,
FMT_ENABLE_IF(detail::is_output_iterator<OutputIt, Char>::value&&
detail::is_exotic_char<Char>::value)>
auto vformat_to(OutputIt out, const S& format_str,
basic_format_args<buffer_context<type_identity_t<Char>>> args)
-> OutputIt {
auto&& buf = detail::get_buffer<Char>(out);
detail::vformat_to(buf, detail::to_string_view(format_str), args);
return detail::get_iterator(buf, out);
}
template <typename OutputIt, typename S, typename... T,
typename Char = char_t<S>,
FMT_ENABLE_IF(detail::is_output_iterator<OutputIt, Char>::value&&
detail::is_exotic_char<Char>::value)>
inline auto format_to(OutputIt out, const S& fmt, T&&... args) -> OutputIt {
return vformat_to(out, detail::to_string_view(fmt),
fmt::make_format_args<buffer_context<Char>>(args...));
}
template <typename Locale, typename S, typename OutputIt, typename... Args,
typename Char = char_t<S>,
FMT_ENABLE_IF(detail::is_output_iterator<OutputIt, Char>::value&&
detail::is_locale<Locale>::value&&
detail::is_exotic_char<Char>::value)>
inline auto vformat_to(
OutputIt out, const Locale& loc, const S& format_str,
basic_format_args<buffer_context<type_identity_t<Char>>> args) -> OutputIt {
auto&& buf = detail::get_buffer<Char>(out);
vformat_to(buf, detail::to_string_view(format_str), args,
detail::locale_ref(loc));
return detail::get_iterator(buf, out);
}
template <typename OutputIt, typename Locale, typename S, typename... T,
typename Char = char_t<S>,
bool enable = detail::is_output_iterator<OutputIt, Char>::value &&
detail::is_locale<Locale>::value &&
detail::is_exotic_char<Char>::value>
inline auto format_to(OutputIt out, const Locale& loc, const S& format_str,
T&&... args) ->
typename std::enable_if<enable, OutputIt>::type {
return vformat_to(out, loc, detail::to_string_view(format_str),
fmt::make_format_args<buffer_context<Char>>(args...));
}
template <typename OutputIt, typename Char, typename... Args,
FMT_ENABLE_IF(detail::is_output_iterator<OutputIt, Char>::value&&
detail::is_exotic_char<Char>::value)>
inline auto vformat_to_n(
OutputIt out, size_t n, basic_string_view<Char> format_str,
basic_format_args<buffer_context<type_identity_t<Char>>> args)
-> format_to_n_result<OutputIt> {
using traits = detail::fixed_buffer_traits;
auto buf = detail::iterator_buffer<OutputIt, Char, traits>(out, n);
detail::vformat_to(buf, format_str, args);
return {buf.out(), buf.count()};
}
template <typename OutputIt, typename S, typename... T,
typename Char = char_t<S>,
FMT_ENABLE_IF(detail::is_output_iterator<OutputIt, Char>::value&&
detail::is_exotic_char<Char>::value)>
inline auto format_to_n(OutputIt out, size_t n, const S& fmt, T&&... args)
-> format_to_n_result<OutputIt> {
return vformat_to_n(out, n, detail::to_string_view(fmt),
fmt::make_format_args<buffer_context<Char>>(args...));
}
template <typename S, typename... T, typename Char = char_t<S>,
FMT_ENABLE_IF(detail::is_exotic_char<Char>::value)>
inline auto formatted_size(const S& fmt, T&&... args) -> size_t {
auto buf = detail::counting_buffer<Char>();
detail::vformat_to(buf, detail::to_string_view(fmt),
fmt::make_format_args<buffer_context<Char>>(args...));
return buf.count();
}
inline void vprint(std::FILE* f, wstring_view fmt, wformat_args args) {
auto buf = wmemory_buffer();
detail::vformat_to(buf, fmt, args);
buf.push_back(L'\0');
if (std::fputws(buf.data(), f) == -1)
FMT_THROW(system_error(errno, FMT_STRING("cannot write to file")));
}
inline void vprint(wstring_view fmt, wformat_args args) {
vprint(stdout, fmt, args);
}
template <typename... T>
void print(std::FILE* f, wformat_string<T...> fmt, T&&... args) {
return vprint(f, wstring_view(fmt), fmt::make_wformat_args(args...));
}
template <typename... T> void print(wformat_string<T...> fmt, T&&... args) {
return vprint(wstring_view(fmt), fmt::make_wformat_args(args...));
}
template <typename... T>
void println(std::FILE* f, wformat_string<T...> fmt, T&&... args) {
return print(f, L"{}\n", fmt::format(fmt, std::forward<T>(args)...));
}
template <typename... T> void println(wformat_string<T...> fmt, T&&... args) {
return print(L"{}\n", fmt::format(fmt, std::forward<T>(args)...));
}
/**
Converts *value* to ``std::wstring`` using the default format for type *T*.
*/
template <typename T> inline auto to_wstring(const T& value) -> std::wstring {
return format(FMT_STRING(L"{}"), value);
}
FMT_END_EXPORT
FMT_END_NAMESPACE
#endif // FMT_XCHAR_H_

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