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C言語でマルチプラットフォーム対応のコンストラクタ処理(MSVCでの__attribute__((constructor))相当など) ref: http://qiita.com/tenmyo/items/c3dd91af04d10d185a9a
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// Initializer/finalizer sample for MSVC and GCC/Clang. | |
// 2010-2016 Joe Lowe. Released into the public domain. | |
#include <stdio.h> | |
#include <stdlib.h> | |
#ifdef __cplusplus | |
#define INITIALIZER(f) \ | |
static void f(void); \ | |
struct f##_t_ { f##_t_(void) { f(); } }; static f##_t_ f##_; \ | |
static void f(void) | |
#elif defined(_MSC_VER) | |
#pragma section(".CRT$XCU",read) | |
#define INITIALIZER2_(f,p) \ | |
static void f(void); \ | |
__declspec(allocate(".CRT$XCU")) void (*f##_)(void) = f; \ | |
__pragma(comment(linker,"/include:" p #f "_")) \ | |
static void f(void) | |
#ifdef _WIN64 | |
#define INITIALIZER(f) INITIALIZER2_(f,"") | |
#else | |
#define INITIALIZER(f) INITIALIZER2_(f,"_") | |
#endif | |
#else | |
#define INITIALIZER(f) \ | |
static void f(void) __attribute__((constructor)); \ | |
static void f(void) | |
#endif | |
static void finalize(void) | |
{ | |
printf( "finalize\n"); | |
} | |
INITIALIZER( initialize) | |
{ | |
printf( "initialize\n"); | |
atexit( finalize); | |
} | |
int main( int argc, char** argv) | |
{ | |
printf( "main\n"); | |
return 0; | |
} |
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