pthread_barrierattr
pthread_barrierattr* attr = (pthread_barrierattr*)malloc(
sizeof(pthread_barrierattr));
pthread_barrierattr* attr = _attr != NULL ? *_attr : NULL;
pthread_barrierattr* attr;
pthread_barrierattr* attr;
static const pthread_barrierattr pthread_barrierattr_default = {
const pthread_barrierattr* attr = _attr != NULL