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dd1a8dbed435c290da29b8269040f7a51627fbab
[musl]
/
src
/
signal
/
sigismember.c
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#include <signal.h>
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#include <errno.h>
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int sigismember(const sigset_t *set, int sig)
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{
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unsigned s = sig-1;
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if (s >= _NSIG-1) return 0;
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return !!(set->__bits[s/8/sizeof *set->__bits] & 1UL<<(s&8*sizeof *set->__bits-1));
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}