diff options
Diffstat (limited to 'setjmp')
| -rw-r--r-- | setjmp/setjmp.h | 6 | ||||
| -rw-r--r-- | setjmp/tst-setjmp.c | 35 |
2 files changed, 37 insertions, 4 deletions
diff --git a/setjmp/setjmp.h b/setjmp/setjmp.h index 75abb18..eb4305f 100644 --- a/setjmp/setjmp.h +++ b/setjmp/setjmp.h @@ -1,4 +1,4 @@ -/* Copyright (C) 1991, 92, 93, 94, 95, 96 Free Software Foundation, Inc. +/* Copyright (C) 1991, 92, 93, 94, 95, 96, 97 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 @@ -51,7 +51,7 @@ extern int __sigsetjmp __P ((jmp_buf __env, int __savemask)); #ifndef __FAVOR_BSD /* Set ENV to the current position and return 0, not saving the signal mask. This is just like `sigsetjmp (ENV, 0)'. - The ANSI C standard says `setjmp' is a macro. */ + The ISO C standard says `setjmp' is a macro. */ #define setjmp(env) __sigsetjmp ((env), 0) #else /* We are in 4.3 BSD-compatibility mode in which `setjmp' @@ -61,7 +61,7 @@ extern int __sigsetjmp __P ((jmp_buf __env, int __savemask)); #ifdef __USE_BSD /* Set ENV to the current position and return 0, not saving the signal mask. - This is the 4.3 BSD name for ANSI `setjmp'. */ + This is the 4.3 BSD name for ISO `setjmp'. */ #define _setjmp(env) __sigsetjmp ((env), 0) #endif diff --git a/setjmp/tst-setjmp.c b/setjmp/tst-setjmp.c index 6147ae9..b4cba11 100644 --- a/setjmp/tst-setjmp.c +++ b/setjmp/tst-setjmp.c @@ -54,8 +54,14 @@ main (void) if (!lose && value == 10) { - /* Do a second test, this time without `setjmp' being a macro. */ + /* Do a second test, this time without `setjmp' being a macro. + This is not required by ISO C but we have this for compatibility. */ #undef setjmp + extern int setjmp (jmp_buf); + + last_value = -1; + lose = 0; + value = setjmp (env); if (value != last_value + 1) { @@ -75,6 +81,33 @@ main (void) } } + if (!lose && value == 10) + { + /* And again for the `__setjmp' function. */ + extern int __setjmp (jmp_buf); + + last_value = -1; + lose = 0; + + value = __setjmp (env); + if (value != last_value + 1) + { + fputs("Shouldn't have ", stdout); + lose = 1; + } + last_value = value; + switch (value) + { + case 0: + puts("Saved environment."); + jump (0); + default: + printf ("Jumped to %d.\n", value); + if (value < 10) + jump (value + 1); + } + } + if (lose || value != 10) puts ("Test FAILED!"); else |