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cb343854 | 1 | /* Copyright (C) 1991, 1992, 1997, 1998 Free Software Foundation, Inc. |
c84142e8 | 2 | This file is part of the GNU C Library. |
28f540f4 | 3 | |
c84142e8 UD |
4 | The GNU C Library is free software; you can redistribute it and/or |
5 | modify it under the terms of the GNU Library General Public License as | |
6 | published by the Free Software Foundation; either version 2 of the | |
7 | License, or (at your option) any later version. | |
28f540f4 | 8 | |
c84142e8 UD |
9 | The GNU C Library is distributed in the hope that it will be useful, |
10 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
12 | Library General Public License for more details. | |
28f540f4 | 13 | |
c84142e8 UD |
14 | You should have received a copy of the GNU Library General Public |
15 | License along with the GNU C Library; see the file COPYING.LIB. If not, | |
16 | write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
17 | Boston, MA 02111-1307, USA. */ | |
28f540f4 | 18 | |
28f540f4 RM |
19 | #include <stdio.h> |
20 | #include <setjmp.h> | |
21 | #include <stdlib.h> | |
22 | ||
23 | static jmp_buf env; | |
24 | static int last_value = -1, lose = 0; | |
25 | ||
26 | void | |
c84142e8 | 27 | jump (int val) |
28f540f4 | 28 | { |
c84142e8 | 29 | longjmp (env, val); |
28f540f4 RM |
30 | } |
31 | ||
32 | int | |
c84142e8 | 33 | main (void) |
28f540f4 RM |
34 | { |
35 | int value; | |
36 | ||
c84142e8 | 37 | value = setjmp (env); |
28f540f4 RM |
38 | if (value != last_value + 1) |
39 | { | |
40 | fputs("Shouldn't have ", stdout); | |
41 | lose = 1; | |
42 | } | |
43 | last_value = value; | |
44 | switch (value) | |
45 | { | |
46 | case 0: | |
47 | puts("Saved environment."); | |
c84142e8 | 48 | jump (0); |
28f540f4 | 49 | default: |
c84142e8 | 50 | printf ("Jumped to %d.\n", value); |
28f540f4 | 51 | if (value < 10) |
c84142e8 | 52 | jump (value + 1); |
28f540f4 RM |
53 | } |
54 | ||
e61abf83 UD |
55 | if (!lose && value == 10) |
56 | { | |
c57abfa7 UD |
57 | /* Do a second test, this time without `setjmp' being a macro. |
58 | This is not required by ISO C but we have this for compatibility. */ | |
e61abf83 | 59 | #undef setjmp |
c57abfa7 UD |
60 | extern int setjmp (jmp_buf); |
61 | ||
62 | last_value = -1; | |
63 | lose = 0; | |
64 | ||
e61abf83 UD |
65 | value = setjmp (env); |
66 | if (value != last_value + 1) | |
67 | { | |
68 | fputs("Shouldn't have ", stdout); | |
69 | lose = 1; | |
70 | } | |
71 | last_value = value; | |
72 | switch (value) | |
73 | { | |
74 | case 0: | |
75 | puts("Saved environment."); | |
76 | jump (0); | |
77 | default: | |
78 | printf ("Jumped to %d.\n", value); | |
79 | if (value < 10) | |
80 | jump (value + 1); | |
81 | } | |
82 | } | |
83 | ||
c57abfa7 UD |
84 | if (!lose && value == 10) |
85 | { | |
cb343854 UD |
86 | /* And again for the `_setjmp' function. */ |
87 | #ifndef _setjmp | |
88 | extern int _setjmp (jmp_buf); | |
89 | #endif | |
c57abfa7 UD |
90 | last_value = -1; |
91 | lose = 0; | |
92 | ||
cb343854 | 93 | value = _setjmp (env); |
c57abfa7 UD |
94 | if (value != last_value + 1) |
95 | { | |
96 | fputs("Shouldn't have ", stdout); | |
97 | lose = 1; | |
98 | } | |
99 | last_value = value; | |
100 | switch (value) | |
101 | { | |
102 | case 0: | |
103 | puts("Saved environment."); | |
104 | jump (0); | |
105 | default: | |
106 | printf ("Jumped to %d.\n", value); | |
107 | if (value < 10) | |
108 | jump (value + 1); | |
109 | } | |
110 | } | |
111 | ||
28f540f4 | 112 | if (lose || value != 10) |
c84142e8 | 113 | puts ("Test FAILED!"); |
28f540f4 | 114 | else |
c84142e8 UD |
115 | puts ("Test succeeded!"); |
116 | exit (lose ? EXIT_FAILURE : EXIT_SUCCESS); | |
28f540f4 | 117 | } |