NAME

setjmp.h — stack environment declarations

SYNOPSIS

#include <setjmp.h>

DESCRIPTION

^[CX] Some of the functionality described on this reference page extends the ISO C standard. Applications shall define the appropriate feature test macro (see XSH 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 ^[CX] sigjmp_buf.

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

_Noreturn void   longjmp(jmp_buf, int);
[CX]
_Noreturn void   siglongjmp(sigjmp_buf, int);

The following may be declared as functions, or defined as macros, or both. If functions are declared, function prototypes shall be provided.

int    setjmp(jmp_buf);
[CX]
int    sigsetjmp(sigjmp_buf, int);

APPLICATION USAGE

None.

RATIONALE

None.

FUTURE DIRECTIONS

None.

SEE ALSO

XSH 2.2 The Compilation Environment , longjmp , setjmp , siglongjmp , sigsetjmp

CHANGE HISTORY

First released in Issue 1.

Issue 6

Extensions beyond the ISO C standard are marked.

Issue 7

SD5-XBD-ERN-6 is applied.

Issue 8

Austin Group Defect 1302 is applied, adding _Noreturn to longjmp() and siglongjmp().

Austin Group Defect 1330 is applied, removing obsolescent interfaces.