# C++ Predefined Macros (Cross-Platform) As we know there is no standard way in compilers to standardize macros with compilers and different operating systems So I created this library that contains standardized macros and more. [Github Repository](https://github.com/xeerx/cpp-predefined) --- **Contents :** - **[Architecture](#architecture)**
This section contains some macros that can detect **more than 20 architecture**. - **[Operating System](#operating-system)**
This section contains some macros that can detect **more than 66 operating system**. - **[Compiler](#compiler)**
This section contains some macros that can detect **more than 75 compiler and its version**. - **[Library](#library)**
This section contains some macros that can detect **more than 11 library and its version**. - **[Standard](#standard)**
This section contains the standard macros **more than 35 macro**. - **[Has Macros](#has-macros)**
This section contains the `__has` macros **more than 4 macros**. - **[Attributes](#attributes)**
This section contains some standard and common attributes **more than 13 attribute**. - **[Controllers](#controllers)**
This section contains some macros that can manage some things in C/C++ **more than 7 controllers**. - **[Helpers Macros](#helpers-macros)**
This section contains some macros that may be useful while writting this library. --- ## Quick Examples - [Architecture](/docs/architectures.md) ```cpp /* Print architecture name */ cout << X_ARCH << endl; // 👉 "x86_64" /* Check for specific architecture using ID/Macro */ #ifdef X_ARCH_ ... ``` - [Operating System](/docs/operating-system.md) ```cpp /* Print operating system name */ cout << X_OS << endl; // 👉 "GNU/Linux" /* Check for specific OS using ID/Macro */ #ifdef X_OS_ ... ``` - [Compiler](/docs/compiler.md) ```cpp /* Print compiler info */ cout << X_COMP << endl; // 👉 "GCC" cout << X_COMP_MAJOR << endl; // 👉 12 cout << X_COMP_MINOR << endl; // 👉 1 cout << X_COMP_PATCH << endl; // 👉 0 cout << X_COMP_VERSION << endl; // 👉 201392128 cout << X_COMP_ORG_VERSION << endl; // 👉 12 /* Check for specific compiler using ID/Macro */ #ifdef X_COMP_ ... ``` - [Library](/docs/library.md) ```cpp /* Print lib info */ cout << X_LIB << endl; // 👉 "GNU glibc" cout << X_LIB_MAJOR << endl; // 👉 2 cout << X_LIB_MINOR << endl; // 👉 35 cout << X_LIB_PATCH << endl; // 👉 0 cout << X_LIB_VERSION << endl; // 👉 35848192 cout << X_LIB_ORG_VERSION << endl; // 👉 2 /* Check for specific lib using ID/Macro */ #ifdef X_LIB_ ... ``` - [Standard](/docs/standards.md) ```cpp /* Print some info */ cout << X_STD_CPP << endl; // 👉 20 cout << X_STD_FILE << endl; // 👉 "path/main.cpp" cout << X_STD_FUNC << endl; // 👉 "main()" cout << X_STD_LINE << endl; // 👉 4 cout << X_STD_TIME << endl; // 👉 "10:19:16" cout << X_STD_DATE << endl; // 👉 "Oct 30 2022" /* Check for specific Version */ #if X_STD_CPP >= 20 // you can use (X_STD_C) for c language ... ``` - [Has-Macros](/docs/has-macros.md) ```cpp /* Check for Attribute */ #if X_HAS_ATTR(noreturn) ... /* Check for Feature */ #if X_HAS_FEATURE(cxx_rvalue_references) ... /* Check for Include */ #if X_HAS_INCLUDE("iostream") ... /* Check for Builtin */ #if X_HAS_BUILTIN(__builtin_clz) ... ``` - [Attributes](/docs/attributes.md) ```cpp /* Usage of Attributes */ X_ATTR_DEPRECATED("old version") X_ATTR_INLINE X_ATTR_HIDDEN void func(X_ATTR_MAYBE_UNUSED int i = 0) ... ``` - [Controllers](/docs/controllers.md) ```cpp /* Manage Exceptions */ X_CONSTEXPR void func() X_NOEXCEPT // IF C++ && X_EXCEPTIONS => constexpr void func() noexcept // ELSE => void func() ... /* Throw An Exception */ X_THROW(exception); // IF C++ && X_EXCEPTIONS => throw an exception // ELSE IF C++ => assert an error with exception message // ELSE => assert an error without message ``` - [Helpers Macros](/docs/helpers-macros.md) ```cpp /* Version Normalization (major, minor, patch) */ #define version X_VER(9,3,7) ``` --- ### Tests This library has been tested on all of the following: #### Operating System - `Linux` Ubuntu 22.04.1 LTS - `Windows` Windows 10 pro #### Compiler - `GCC` 12.1 - `Clang` 15.0.0 - `MSVC` 19.0 --- #### References - https://sourceforge.net/p/predef/wiki/Home/ - https://gcc.gnu.org/onlinedocs/gcc/ - https://learn.microsoft.com/en-us/cpp/preprocessor/

xeerx

C++ (Cross-Platform) Predefined Library

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