setjmp.h

<setjmp.h>(P)							<setjmp.h>(P)



NAME
       setjmp.h - stack environment declarations

SYNOPSIS
       #include <setjmp.h>

DESCRIPTION
       Some of the functionality described on this reference page extends the
       ISO C standard. Applications shall define the appropriate feature test
       macro  (see the System Interfaces volume of IEEE Std 1003.1-2001, Sec-
       tion 2.2, The Compilation Environment) to  enable  the  visibility  of
       these symbols in this header.

       The  <setjmp.h>	header	shall  define  the  array  types  jmp_buf and
       sigjmp_buf.

       The following shall be declared as functions and may also  be  defined
       as macros. Function prototypes shall be provided.


	      void   longjmp(jmp_buf, int);

	      void   siglongjmp(sigjmp_buf, int);


	      void  _longjmp(jmp_buf, int);


       The following may be declared as a function, or defined as a macro, or
       both. Function prototypes shall be provided.


	      int    setjmp(jmp_buf);

	      int    sigsetjmp(sigjmp_buf, int);


	      int   _setjmp(jmp_buf);


       The following sections are informative.

APPLICATION USAGE
       None.

RATIONALE
       None.

FUTURE DIRECTIONS
       None.

SEE ALSO
       The  System  Interfaces	volume	of  IEEE Std 1003.1-2001,  longjmp(),
       _longjmp(), setjmp(), siglongjmp(), sigsetjmp()

COPYRIGHT
       Portions	 of this text are reprinted and reproduced in electronic form
       from IEEE Std 1003.1, 2003 Edition, Standard for Information  Technol-
       ogy  --	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 .



POSIX				     2003			<setjmp.h>(P)