如何通過條件編譯，利用不同編譯器的預置宏定義來區分不同編譯器，實現跨平台編譯？

想要VS Dev Codeblocks Linux的預置宏定義

就是#if

.....

#elif

.....

#endlif...

謝謝！！

關於各種編譯器的預定義宏，boost的文檔中有一份很好的總結：http://www.boost.org/doc/libs/1_65_1/doc/html/predef/reference.html

比如說這些是比較常見的：

_WIN32 // Windows
__linux // Linux

__clang__ // Clang
__GNUC__ // GCC(需要注意的是Clang也會定義這個宏）
_MSC_VER // MSVC


定義：

paltform_config.h：

#pragma once

#if !(defined(DEBUG) || defined(_DEBUG)) !defined(NDEBUG)

#define NDEBUG

#endif

#if !(defined(DEBUG) || defined(_DEBUG)) !defined(_NDEBUG)

#define _NDEBUG

#endif

#if(__cplusplus &< 201103L !defined(_MSC_VER)) || (defined(_MSC_VER) (_MSC_VER &< 1700)) ||

(defined(__GLIBCXX__) __GLIBCXX__ &< 20130322L)

#define $cpp11 $no

#define $cpp03 $yes

#else

#define $cpp11 $yes

#define $cpp03 $no

#endif

// Thread Local Storage

#if defined(__MINGW32__) || defined(__SUNPRO_C) || defined(__xlc__) || defined(__GNUC__) ||

defined(__clang__) || defined(__GNUC__) // __INTEL_COMPILER on linux

// MingW, Solaris Studio C/C++, IBM XL C/C++,[3] GNU C,[4] Clang[5] and Intel

// C++ Compiler (Linux systems)

#define $tls(x) __thread x

#else

// Visual C++,[7] Intel C/C++ (Windows systems),[8] C++Builder, and Digital

// Mars C++

#define $tls(x) __declspec(thread) x

#endif

// OS utils. Here is where the fun starts... good luck

#define $quote(...) #__VA_ARGS__

#define $comment(...) $no

#define $uncomment(...) $yes

#define $yes(...) __VA_ARGS__

#define $no(...)

#define $on(v) (0 v(+1)) // usage: #if $on($msvc)

#define $is $on // usage: #if $is($debug)

#define $has(...) $clang(__has_feature(__VA_ARGS__)) $celse(__VA_ARGS__) // usage: #if $has(cxx_exceptions)

#if defined(_WIN32)

#define $windows $yes

#define $welse $no

#else

#define $windows $no

#define $welse $yes

#endif

#ifdef __APPLE__

#define $apple $yes

#define $aelse $no

#else

#define $apple $no

#define $aelse $yes

#endif

#ifdef __linux__

#define $linux $yes

#define $lelse $no

#else

#define $linux $no

#define $lelse $yes

#endif

#ifdef __ANDROID__

#define $android $yes

#define $aelse $no

#else

#define $android $no

#define $aelse $yes

#endif

// Compiler utils

#if ULONG_MAX == 4294967295

#define $bits64 $yes

#define $bits32 $no

#else

#define $bits64 $no

#define $bits32 $yes

#endif

#if defined(NDEBUG) || defined(_NDEBUG) || defined(RELEASE)

#define $release $yes

#define $debug $no

#else

#define $release $no

#define $debug $yes

#endif

#if defined(NDEVEL) || defined(_NDEVEL) || defined(PUBLIC)

#define $public $yes

#define $devel $no

#else

#define $public $no

#define $devel $yes

#endif

#if defined(__GNUC__) || defined(__MINGW32__)

#define $gnuc $yes

#define $gelse $no

#else

#define $gnuc $no

#define $gelse $yes

#endif

#if defined(__MINGW32__)

#define $mingw $yes

#else

#define $mingw $no

#endif

#ifdef _MSC_VER

#define $msvc $yes

#define $melse $no

#else

#define $msvc $no

#define $melse $yes

#endif

#ifdef __clang__

#define $clang $yes

#define $celse $no

#else

#define $clang $no

#define $celse $yes

#endif

#if $on($msvc) || $on($gnuc) || $on($clang)

#define $undefined_compiler $no

#else

#define $undefined_compiler $yes

#endif

#if $on($windows) || $on($linux) || $on($apple) || $on($android)

#define $undefined_os $no

#else

#define $undefined_os $yes

#endif

template &

inline bool eval()

{

return true;

}

template &<&>

inline bool eval&()

{

return false;

}

#define runtime_eval(_x) eval&()

使用：

#include "paltform_config.h"

#if $on($windows)

.....

#elif $on($apple)

....

#elif $on($linux)

....

#else

....

#endif