include/setjmp.h

   1 #ifndef _SETJMP_H
   2 #define _SETJMP_H
   3
   4 #ifdef __cplusplus
   5 extern "C" {
   6 #endif
   7
   8 #include <features.h>
   9
  10 #include <bits/setjmp.h>
  11
  12 typedef 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)
  27 typedef jmp_buf sigjmp_buf;
  28 int 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)
  34 int _setjmp (jmp_buf) __setjmp_attr;
  35 _Noreturn void _longjmp (jmp_buf, int);
  36 #endif
  37
  38 int 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