1 /** \file test-integers.c
2 * \brief Check assumptions about integer types (sizes, ranges).
3 *
4 * Copyright (C) 2007 Hans Ulrich Niedermann <gp@n-dimensional.de>
5 *
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2 of the License, or (at your option) any later version.
10 *
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the
18 * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
19 * Boston, MA 02110-1301 USA.
20 */
21
22
23 #include "libexif/_stdint.h"
24 #include <stdlib.h>
25 #include <stdio.h>
26
27
28 typedef enum {
29 EN_A,
30 EN_B,
31 EN_C,
32 EN_D,
33 EN_E,
34 EN_F
35 } enum_t;
36
37
38 #if defined(__GNUC__) && (__GNUC__ >= 4)
39 # define CHECK(condition) \
40 if (!(condition)) { \
41 fprintf(stderr, "%s:%d: check failed: %s\n", \
42 __FILE__, __LINE__, #condition); \
43 errors++; \
44 }
45 #else
46 # define CHECK(condition) \
47 if (!(condition)) { \
48 abort(); \
49 }
50 #endif
51
52
main()53 int main()
54 {
55 unsigned int errors = 0;
56
57 /* libexif assumes unsigned ints are not smaller than 32bit in many places */
58 CHECK(sizeof(unsigned int) >= sizeof(uint32_t));
59
60 /* libexif assumes that enums fit into ints */
61 CHECK(sizeof(enum_t) <= sizeof(int));
62
63 return (errors>0)?1:0;
64 }
65