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,  Section 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 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 .