/* TAGS: threads c */ #include #include #include int main() { pthread_mutex_t mtx = PTHREAD_MUTEX_INITIALIZER; int r = pthread_mutex_lock( &mtx ); assert( r == 0 ); r = pthread_mutex_unlock( &mtx ); assert( r == 0 ); r = pthread_mutex_destroy( &mtx ); assert( r == 0 ); r = pthread_mutex_init( &mtx, NULL ); assert( r == 0 ); }