summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
-rw-r--r--include/setjmp.h32
1 files changed, 22 insertions, 10 deletions
diff --git a/include/setjmp.h b/include/setjmp.h
index 99e3dc8cd..fb9c078f7 100644
--- a/include/setjmp.h
+++ b/include/setjmp.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991-1999, 2001 Free Software Foundation, Inc.
+/* Copyright (C) 1991-1999,2001,2002,2007,2009 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@@ -30,8 +30,9 @@ __BEGIN_DECLS
#include <bits/setjmp.h> /* Get `__jmp_buf'. */
#include <bits/sigset.h> /* Get `__sigset_t'. */
+
/* Calling environment, plus possibly a saved signal mask. */
-typedef struct __jmp_buf_tag /* C++ doesn't like tagless structs. */
+struct __jmp_buf_tag
{
/* NOTE: The machine-dependent definitions of `__sigsetjmp'
assume that a `jmp_buf' begins with a `__jmp_buf' and that
@@ -40,23 +41,29 @@ typedef struct __jmp_buf_tag /* C++ doesn't like tagless structs. */
__jmp_buf __jmpbuf; /* Calling environment. */
int __mask_was_saved; /* Saved the signal mask? */
__sigset_t __saved_mask; /* Saved signal mask. */
- } jmp_buf[1];
+ };
+
+
+__BEGIN_NAMESPACE_STD
+typedef struct __jmp_buf_tag jmp_buf[1];
/* Store the calling environment in ENV, also saving the signal mask.
Return 0. */
extern int setjmp (jmp_buf __env) __THROW;
-/* Store the calling environment in ENV, not saving the signal mask.
- Return 0. */
-extern int _setjmp (jmp_buf __env) __THROW;
+__END_NAMESPACE_STD
/* Store the calling environment in ENV, also saving the
signal mask if SAVEMASK is nonzero. Return 0.
This is the internal name for `sigsetjmp'. */
-extern int __sigsetjmp (jmp_buf __env, int __savemask) __THROW;
+extern int __sigsetjmp (struct __jmp_buf_tag __env[1], int __savemask) __THROW;
#ifndef __FAVOR_BSD
+/* Store the calling environment in ENV, not saving the signal mask.
+ Return 0. */
+extern int _setjmp (struct __jmp_buf_tag __env[1]) __THROW;
+
/* Do not save the signal mask. This is equivalent to the `_setjmp'
BSD function. */
# define setjmp(env) _setjmp (env)
@@ -68,15 +75,20 @@ extern int __sigsetjmp (jmp_buf __env, int __savemask) __THROW;
#endif /* Favor BSD. */
+__BEGIN_NAMESPACE_STD
+
/* Jump to the environment saved in ENV, making the
`setjmp' call there return VAL, or 1 if VAL is 0. */
-extern void longjmp (jmp_buf __env, int __val)
+extern void longjmp (struct __jmp_buf_tag __env[1], int __val)
__THROW __attribute__ ((__noreturn__));
+
+__END_NAMESPACE_STD
+
#if defined __USE_BSD || defined __USE_XOPEN
/* Same. Usually `_longjmp' is used with `_setjmp', which does not save
the signal mask. But it is how ENV was saved that determines whether
`longjmp' restores the mask; `_longjmp' is just an alias. */
-extern void _longjmp (jmp_buf __env, int __val)
+extern void _longjmp (struct __jmp_buf_tag __env[1], int __val)
__THROW __attribute__ ((__noreturn__));
#endif
@@ -85,7 +97,7 @@ extern void _longjmp (jmp_buf __env, int __val)
/* Use the same type for `jmp_buf' and `sigjmp_buf'.
The `__mask_was_saved' flag determines whether
or not `longjmp' will restore the signal mask. */
-typedef jmp_buf sigjmp_buf;
+typedef struct __jmp_buf_tag sigjmp_buf[1];
/* Store the calling environment in ENV, also saving the
signal mask if SAVEMASK is nonzero. Return 0. */