Linux Standard Base Core Specification 3.0Preview1
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sigisemptyset

Name

sigisemptyset -- check for empty signal set

Synopsis

#include <signal.h>

int sigisemptyset(const sigset_t * set);

Description

The sigisemptyset() function shall check for empty signal set referenced by set.

Return Value

The sigisemptyset() function shall return a positive non-zero value if the signal set referenced by set is empty, or zero if this set is empty. On error, sigisemptyset() shall return -1 and set errno to indicate the error.

Errors

EINVAL

set is a null pointer.

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sigandsetUpsigorset