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04277e02 | 1 | /* Copyright (C) 2005-2019 Free Software Foundation, Inc. |
bfc832cc UD |
2 | This file is part of the GNU C Library. |
3 | Contributed by Jakub Jelinek <jakub@redhat.com>, 2005. | |
4 | ||
5 | The GNU C Library is free software; you can redistribute it and/or | |
6 | modify it under the terms of the GNU Lesser General Public | |
7 | License as published by the Free Software Foundation; either | |
8 | version 2.1 of the License, or (at your option) any later version. | |
9 | ||
10 | The GNU C Library is distributed in the hope that it will be useful, | |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
13 | Lesser General Public License for more details. | |
14 | ||
15 | You should have received a copy of the GNU Lesser General Public | |
59ba27a6 PE |
16 | License along with the GNU C Library; if not, see |
17 | <http://www.gnu.org/licenses/>. */ | |
bfc832cc UD |
18 | |
19 | #include <errno.h> | |
20 | #include <stdio.h> | |
21 | #include <stdlib.h> | |
e15f7de6 | 22 | #include <libc-diag.h> |
bfc832cc UD |
23 | |
24 | static int errors = 0; | |
25 | ||
26 | static void | |
27 | merror (const char *msg) | |
28 | { | |
29 | ++errors; | |
30 | printf ("Error: %s\n", msg); | |
31 | } | |
32 | ||
29955b5d AS |
33 | static int |
34 | do_test (void) | |
bfc832cc UD |
35 | { |
36 | void *p, *q; | |
37 | ||
38 | errno = 0; | |
39 | ||
3d7229c2 JM |
40 | DIAG_PUSH_NEEDS_COMMENT; |
41 | #if __GNUC_PREREQ (7, 0) | |
42 | /* GCC 7 warns about too-large allocations; here we want to test | |
43 | that they fail. */ | |
44 | DIAG_IGNORE_NEEDS_COMMENT (7, "-Walloc-size-larger-than="); | |
45 | #endif | |
bfc832cc | 46 | p = malloc (-1); |
3d7229c2 | 47 | DIAG_POP_NEEDS_COMMENT; |
bfc832cc UD |
48 | |
49 | if (p != NULL) | |
50 | merror ("malloc (-1) succeeded."); | |
51 | else if (errno != ENOMEM) | |
52 | merror ("errno is not set correctly."); | |
53 | ||
54 | p = malloc (10); | |
55 | if (p == NULL) | |
56 | merror ("malloc (10) failed."); | |
57 | ||
58 | p = realloc (p, 0); | |
59 | if (p != NULL) | |
60 | merror ("realloc (p, 0) failed."); | |
61 | ||
62 | p = malloc (0); | |
63 | if (p == NULL) | |
64 | merror ("malloc (0) failed."); | |
65 | ||
66 | p = realloc (p, 0); | |
67 | if (p != NULL) | |
68 | merror ("realloc (p, 0) failed."); | |
69 | ||
70 | q = malloc (256); | |
71 | if (q == NULL) | |
72 | merror ("malloc (256) failed."); | |
73 | ||
74 | p = malloc (512); | |
75 | if (p == NULL) | |
76 | merror ("malloc (512) failed."); | |
77 | ||
3d7229c2 JM |
78 | DIAG_PUSH_NEEDS_COMMENT; |
79 | #if __GNUC_PREREQ (7, 0) | |
80 | /* GCC 7 warns about too-large allocations; here we want to test | |
81 | that they fail. */ | |
82 | DIAG_IGNORE_NEEDS_COMMENT (7, "-Walloc-size-larger-than="); | |
83 | #endif | |
bfc832cc UD |
84 | if (realloc (p, -256) != NULL) |
85 | merror ("realloc (p, -256) succeeded."); | |
86 | else if (errno != ENOMEM) | |
87 | merror ("errno is not set correctly."); | |
3d7229c2 | 88 | DIAG_POP_NEEDS_COMMENT; |
bfc832cc UD |
89 | |
90 | free (p); | |
91 | ||
92 | p = malloc (512); | |
93 | if (p == NULL) | |
94 | merror ("malloc (512) failed."); | |
95 | ||
3d7229c2 JM |
96 | DIAG_PUSH_NEEDS_COMMENT; |
97 | #if __GNUC_PREREQ (7, 0) | |
98 | /* GCC 7 warns about too-large allocations; here we want to test | |
99 | that they fail. */ | |
100 | DIAG_IGNORE_NEEDS_COMMENT (7, "-Walloc-size-larger-than="); | |
101 | #endif | |
bfc832cc UD |
102 | if (realloc (p, -1) != NULL) |
103 | merror ("realloc (p, -1) succeeded."); | |
104 | else if (errno != ENOMEM) | |
105 | merror ("errno is not set correctly."); | |
3d7229c2 | 106 | DIAG_POP_NEEDS_COMMENT; |
bfc832cc UD |
107 | |
108 | free (p); | |
109 | free (q); | |
110 | ||
111 | return errors != 0; | |
112 | } | |
29955b5d AS |
113 | |
114 | #define TEST_FUNCTION do_test () | |
115 | #include "../test-skeleton.c" |