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() function, 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 siglongjmp()  is  only  significant  for
       programs which use sigaction(), sigprocmask(), or sigsuspend().

RATIONALE

       None.

FUTURE DIRECTIONS

       None.

SEE ALSO

       longjmp(), pthread_sigmask(), setjmp(), sigsetjmp(), sigsuspend()

       The Base Definitions volume of POSIX.1‐2017, <setjmp.h>

COPYRIGHT

       Portions of this text are reprinted and reproduced in electronic form from IEEE Std 1003.1-2017, Standard
       for Information  Technology  --  Portable  Operating  System  Interface  (POSIX),  The  Open  Group  Base
       Specifications  Issue  7, 2018 Edition, Copyright (C) 2018 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 .

       Any typographical or formatting errors that appear in this page are most likely to have  been  introduced
       during   the   conversion  of  the  source  files  to  man  page  format.  To  report  such  errors,  see
       https://www.kernel.org/doc/man-pages/reporting_bugs.html .