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https://github.com/fluencelabs/musl
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13 lines
262 B
C
13 lines
262 B
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 >= 8*sizeof(sigset_t)) {
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errno = EINVAL;
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return -1;
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}
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return !!(set->__bits[s/8/sizeof *set->__bits] & 1UL<<(s&8*sizeof *set->__bits-1));
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}
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