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sigaddset()

add a signal to a set

Synopsis:

#include <signal.h>
int sigaddset( sigset_t *set, int signo );

Description:

The sigaddset() function adds signo to the set pointed to by set.

Returns:

0
Success
-1
An error occurred. errno is set to indicate the error.

Errors:

EINVAL
The signal signo isn't valid.

Examples:

See sigemptyset().

Classification:

POSIX 1003.1

Safety:
Interrupt handler Yes
Signal handler Yes, but modifies errno
Thread Yes

See also:

errno, kill(), raise(), sigaction(), sigdelset(), sigemptyset(), sigfillset(), sigismember(), signal(), sigpending(), sigprocmask()


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