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SIGLONGJMP(P)		   POSIX Programmer's Manual		 SIGLONGJMP(P)

PROLOG
       This  manual  page is part of the POSIX Programmer's Manual.  The Linux
       implementation of this interface may differ (consult the	 corresponding
       Linux  manual page for details of Linux behavior), or the interface may
       not be implemented on Linux.

NAME
       siglongjmp - non-local goto with signal handling

SYNOPSIS
       #include <setjmp.h>

       void siglongjmp(sigjmp_buf env, int val);

DESCRIPTION
       The siglongjmp() function shall be equivalent to	 the  longjmp()	 func‐
       tion, except as follows:

	* References to setjmp() shall be equivalent to sigsetjmp().

	* The siglongjmp() function shall restore the saved signal mask if and
	  only if the env argument was initialized by a	 call  to  sigsetjmp()
	  with a non-zero savemask argument.

RETURN VALUE
       After siglongjmp() is completed, program execution shall continue as if
       the corresponding invocation of sigsetjmp() had just returned the value
       specified by val. The siglongjmp() function shall not cause sigsetjmp()
       to return 0; if val is 0, sigsetjmp() shall return the value 1.

ERRORS
       No errors are defined.

       The following sections are informative.

EXAMPLES
       None.

APPLICATION USAGE
       The distinction between setjmp() or longjmp() and sigsetjmp()  or  sig‐
       longjmp()  is only significant for programs which use sigaction(), sig‐
       procmask(), or sigsuspend().

RATIONALE
       None.

FUTURE DIRECTIONS
       None.

SEE ALSO
       longjmp() , setjmp() , sigprocmask() , sigsetjmp() , sigsuspend() , the
       Base Definitions volume of IEEE Std 1003.1-2001, <setjmp.h>

COPYRIGHT
       Portions	 of  this text are reprinted and reproduced in electronic form
       from IEEE Std 1003.1, 2003 Edition, Standard for Information Technology
       --  Portable  Operating	System	Interface (POSIX), The Open Group Base
       Specifications Issue 6, Copyright (C) 2001-2003	by  the	 Institute  of
       Electrical  and	Electronics  Engineers, Inc and The Open Group. In the
       event of any discrepancy between this version and the original IEEE and
       The  Open Group Standard, the original IEEE and The Open Group Standard
       is the referee document. The original Standard can be  obtained	online
       at http://www.opengroup.org/unix/online.html .

IEEE/The Open Group		     2003			 SIGLONGJMP(P)
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