sigisemptyset
Name
sigisemptyset -- check for empty signal set
Synopsis
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.