sigismember() -- Signal Function (libc)

Check if a signal is a member of a set
#include <signal.h>
int sigismember (set, signo)
sigset_t *set;
int signo;

sigismembeer() is one of a set of signalling functions that manipulate data
objects addressable  by the application, instead of a  set of signals known
to the system.  It tests whether the signal signo is a member of the set of
signals to which set points.

If signo is  a member of set, sigismember() returns  zero.  If signo is set
to an invalid or unsupported value, it returns -1 and sets errno to EINVAL.

See Also

libc,
sigaction(),
sigaddset(),
sigdelset(),
sigemptyset(),
sigfillset()

Notes

If  your program  is  compiled using  the  System V  Release 4  compilation
environment, this  is a  function that  is linked in  from libc. If  not, a
macro form is used.

© 2012 by Stephen A. Ness