c++ - __attribute__((destructor)) 在 VC 中等效？

Question

我看过__attribute__((constructor)) equivalent in VC?和 CRT Initialization ，这对特定于 gcc 的 __attribute__((constructor)) 都有帮助。但是 __attribute__((destructor)) 呢？是否有等效的 VC？

Answer 1

如果你正在制作一个动态链接库，你可以制作你的DllMain entry point处理这个:

BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved)
{
    if (fdwReason == DLL_PROCESS_ATTACH)
    {
        // equivalent of __attribute__((constructor))...

        // return TRUE if succeeded, FALSE if you failed to initialize properly
        return TRUE; // I'm assuming you succeeded.
    }
    else if (fdwReason == DLL_PROCESS_DETACH)
    {
        // equivalent of __attribute__((destructor))...
    }

    // Return value is ignored when fdwReason isn't DLL_PROCESS_ATTACH, so we'll
    // just return TRUE.
    return TRUE;
}