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688903eb | 1 | /* Copyright (C) 1999-2018 Free Software Foundation, Inc. |
d7807bfa UD |
2 | This file is part of the GNU C Library. |
3 | Contributed by Andreas Jaeger <aj@arthur.rhein-neckar.de>, 1999. | |
4 | ||
5 | The GNU C Library is free software; you can redistribute it and/or | |
41bdb6e2 AJ |
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. | |
d7807bfa UD |
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 | |
41bdb6e2 | 13 | Lesser General Public License for more details. |
d7807bfa | 14 | |
41bdb6e2 | 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/>. */ | |
d7807bfa UD |
18 | |
19 | #include <errno.h> | |
20 | #include <malloc.h> | |
21 | #include <stdio.h> | |
e15f7de6 | 22 | #include <libc-diag.h> |
d7807bfa 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) | |
d7807bfa | 35 | { |
7463d5cb | 36 | void *p, *q; |
d7807bfa UD |
37 | int save; |
38 | ||
39 | errno = 0; | |
40 | ||
3d7229c2 JM |
41 | DIAG_PUSH_NEEDS_COMMENT; |
42 | #if __GNUC_PREREQ (7, 0) | |
43 | /* GCC 7 warns about too-large allocations; here we want to test | |
44 | that they fail. */ | |
45 | DIAG_IGNORE_NEEDS_COMMENT (7, "-Walloc-size-larger-than="); | |
46 | #endif | |
d7807bfa | 47 | p = malloc (-1); |
3d7229c2 | 48 | DIAG_POP_NEEDS_COMMENT; |
d7807bfa UD |
49 | save = errno; |
50 | ||
51 | if (p != NULL) | |
52 | merror ("malloc (-1) succeeded."); | |
53 | ||
54 | if (p == NULL && save != ENOMEM) | |
55 | merror ("errno is not set correctly"); | |
56 | ||
57 | p = malloc (10); | |
58 | if (p == NULL) | |
59 | merror ("malloc (10) failed."); | |
60 | ||
61 | /* realloc (p, 0) == free (p). */ | |
62 | p = realloc (p, 0); | |
63 | if (p != NULL) | |
64 | merror ("realloc (p, 0) failed."); | |
65 | ||
66 | p = malloc (0); | |
67 | if (p == NULL) | |
68 | merror ("malloc (0) failed."); | |
69 | ||
70 | p = realloc (p, 0); | |
71 | if (p != NULL) | |
72 | merror ("realloc (p, 0) failed."); | |
73 | ||
7463d5cb UD |
74 | p = malloc (513 * 1024); |
75 | if (p == NULL) | |
76 | merror ("malloc (513K) 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 | |
7463d5cb | 84 | q = malloc (-512 * 1024); |
3d7229c2 | 85 | DIAG_POP_NEEDS_COMMENT; |
7463d5cb UD |
86 | if (q != NULL) |
87 | merror ("malloc (-512K) succeeded."); | |
88 | ||
89 | free (p); | |
90 | ||
d7807bfa UD |
91 | return errors != 0; |
92 | } | |
29955b5d AS |
93 | |
94 | #define TEST_FUNCTION do_test () | |
95 | #include "../test-skeleton.c" |