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 .

IEEE/The Open Group                                   2003                                         <setjmp.h>(P)