sigaddset man page on Solaris

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sigsetops(3C)		 Standard C Library Functions		 sigsetops(3C)

NAME
       sigsetops, sigemptyset, sigfillset, sigaddset, sigdelset, sigismember -
       manipulate sets of signals

SYNOPSIS
       #include <signal.h>

       int sigemptyset(sigset_t *set);

       int sigfillset(sigset_t *set);

       int sigaddset(sigset_t *set, int signo);

       int sigdelset(sigset_t *set, int signo);

       int sigismember(sigset_t *set, int signo);

DESCRIPTION
       These functions manipulate sigset_t data types, representing the set of
       signals supported by the implementation.

       The  sigemptyset()  function  initializes  the set pointed to by set to
       exclude all signals defined by the system.

       The sigfillset() function initializes the set  pointed  to  by  set  to
       include all signals defined by the system.

       The  sigaddset()	 function  adds the individual signal specified by the
       value of signo to the set pointed to by set.

       The sigdelset() function deletes the individual signal specified by the
       value of signo from the set pointed to by set.

       The  sigismember()  function checks whether the signal specified by the
       value of signo is a member of the set pointed to by set.

       Any object of type sigset_t must	 be  initialized  by  applying	either
       sigemptyset() or sigfillset() before applying any other operation.

RETURN VALUES
       Upon successful completion, the sigismember() function returns 1 if the
       specified signal is a member of the specified set, or 0 if it is not.

       Upon successful completion, the other functions return 0. Otherwise  −1
       is returned and errno is set to indicate the error.

ERRORS
       The sigaddset(), sigdelset(), and sigismember() functions will fail if:

       EINVAL	       The  value  of the signo argument is not a valid signal
		       number.

       The sigfillset() function will fail if:

       EFAULT	       The set argument specifies an invalid address.

ATTRIBUTES
       See attributes(5) for descriptions of the following attributes:

       ┌─────────────────────────────┬─────────────────────────────┐
       │      ATTRIBUTE TYPE	     │	    ATTRIBUTE VALUE	   │
       ├─────────────────────────────┼─────────────────────────────┤
       │Interface Stability	     │Standard			   │
       ├─────────────────────────────┼─────────────────────────────┤
       │MT-Level		     │Async-Signal-Safe		   │
       └─────────────────────────────┴─────────────────────────────┘

SEE ALSO
       sigaction(2),  sigpending(2),   sigprocmask(2),	 sigsuspend(2),	  sig‐
       nal.h(3HEAD), attributes(5), standards(5)

SunOS 5.10			  19 Dec 2003			 sigsetops(3C)
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