1#define _GNU_SOURCE
2#include <signal.h>
3#include <string.h>
4
5int sigisemptyset(const sigset_t *set)
6{
7 for (size_t i=0; i<_NSIG/8/sizeof *set->__bits; i++)
8 if (set->__bits[i]) return 0;
9 return 1;
10}