1#ifndef _SETJMP_H
2#define _SETJMP_H
3
4#ifdef __cplusplus
5extern "C" {
6#endif
7
8#include <features.h>
9
10#include <bits/setjmp.h>
11
12typedef struct __jmp_buf_tag {
13 __jmp_buf __jb;
14 unsigned long __fl;
15 unsigned long __ss[128/sizeof(long)];
16} jmp_buf[1];
17
18#if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 1)
19#define __setjmp_attr __attribute__((__returns_twice__))
20#else
21#define __setjmp_attr
22#endif
23
24#if defined(_POSIX_SOURCE) || defined(_POSIX_C_SOURCE) \
25 || defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE) \
26 || defined(_BSD_SOURCE)
27typedef jmp_buf sigjmp_buf;
28int sigsetjmp (sigjmp_buf, int) __setjmp_attr;
29_Noreturn void siglongjmp (sigjmp_buf, int);
30#endif
31
32#if defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE) \
33 || defined(_BSD_SOURCE)
34int _setjmp (jmp_buf) __setjmp_attr;
35_Noreturn void _longjmp (jmp_buf, int);
36#endif
37
38int setjmp (jmp_buf) __setjmp_attr;
39_Noreturn void longjmp (jmp_buf, int);
40
41#define setjmp setjmp
42
43#undef __setjmp_attr
44
45#ifdef __cplusplus
46}
47#endif
48
49#endif