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/* $OpenBSD: sigpending.c,v 1.1 2020/09/16 14:02:24 mpi Exp $ */
/*
* Written by Matthew Dempsky, 2012.
* Public domain.
*/
#include <assert.h>
#include <signal.h>
#include <stddef.h>
int
main()
{
sigset_t set;
assert(sigemptyset(&set) == 0);
assert(sigaddset(&set, SIGUSR1) == 0);
assert(sigprocmask(SIG_BLOCK, &set, NULL) == 0);
assert(raise(SIGUSR1) == 0);
assert(sigemptyset(&set) == 0);
assert(sigpending(&set) == 0);
assert(sigismember(&set, SIGUSR1) == 1);
return (0);
}
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