void SDL_AudioQuit(void)
int i;
for (i = 0; i < SDL_GetNumAudioDrivers(); ++i) {
    const char* driver_name = SDL_GetAudioDriver(i);
    if (SDL_AudioInit(driver_name)) {
        printf("オーディオドライバの初期化に失敗した: %s¥n", driver_name);
        continue;
    }
    SDL_AudioQuit();
}