]>
Commit | Line | Data |
---|---|---|
a292f45a | 1 | /* Test integer width macros. |
04277e02 | 2 | Copyright (C) 2016-2019 Free Software Foundation, Inc. |
a292f45a JM |
3 | This file is part of the GNU C Library. |
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 | |
16 | License along with the GNU C Library; if not, see | |
5a82c748 | 17 | <https://www.gnu.org/licenses/>. */ |
a292f45a JM |
18 | |
19 | #include <limits.h> | |
20 | #include <stdio.h> | |
21 | ||
22 | #define CHECK_WIDTH(TYPE, MAX, WIDTH) \ | |
23 | do \ | |
24 | { \ | |
25 | if ((MAX >> ((TYPE) -1 < 0 ? (WIDTH - 2) : (WIDTH - 1))) != 1) \ | |
26 | { \ | |
27 | puts ("bad width of " #TYPE); \ | |
28 | result = 1; \ | |
29 | } \ | |
30 | else \ | |
31 | puts ("width of " #TYPE " OK"); \ | |
32 | } \ | |
33 | while (0) | |
34 | ||
35 | static int | |
36 | do_test (void) | |
37 | { | |
38 | int result = 0; | |
39 | #ifndef CHAR_WIDTH | |
40 | # error "missing CHAR_WIDTH" | |
41 | #endif | |
42 | CHECK_WIDTH (char, CHAR_MAX, CHAR_WIDTH); | |
43 | #ifndef SCHAR_WIDTH | |
44 | # error "missing SCHAR_WIDTH" | |
45 | #endif | |
46 | CHECK_WIDTH (signed char, SCHAR_MAX, SCHAR_WIDTH); | |
47 | #ifndef UCHAR_WIDTH | |
48 | # error "missing UCHAR_WIDTH" | |
49 | #endif | |
50 | CHECK_WIDTH (unsigned char, UCHAR_MAX, UCHAR_WIDTH); | |
51 | #ifndef SHRT_WIDTH | |
52 | # error "missing SHRT_WIDTH" | |
53 | #endif | |
54 | CHECK_WIDTH (signed short, SHRT_MAX, SHRT_WIDTH); | |
55 | #ifndef USHRT_WIDTH | |
56 | # error "missing USHRT_WIDTH" | |
57 | #endif | |
58 | CHECK_WIDTH (unsigned short, USHRT_MAX, USHRT_WIDTH); | |
59 | #ifndef INT_WIDTH | |
60 | # error "missing INT_WIDTH" | |
61 | #endif | |
62 | CHECK_WIDTH (signed int, INT_MAX, INT_WIDTH); | |
63 | #ifndef UINT_WIDTH | |
64 | # error "missing UINT_WIDTH" | |
65 | #endif | |
66 | CHECK_WIDTH (unsigned int, UINT_MAX, UINT_WIDTH); | |
67 | #ifndef LONG_WIDTH | |
68 | # error "missing LONG_WIDTH" | |
69 | #endif | |
70 | CHECK_WIDTH (signed long, LONG_MAX, LONG_WIDTH); | |
71 | #ifndef ULONG_WIDTH | |
72 | # error "missing ULONG_WIDTH" | |
73 | #endif | |
74 | CHECK_WIDTH (unsigned long, ULONG_MAX, ULONG_WIDTH); | |
75 | #ifndef LLONG_WIDTH | |
76 | # error "missing LLONG_WIDTH" | |
77 | #endif | |
78 | CHECK_WIDTH (signed long long, LLONG_MAX, LLONG_WIDTH); | |
79 | #ifndef ULLONG_WIDTH | |
80 | # error "missing ULLONG_WIDTH" | |
81 | #endif | |
82 | CHECK_WIDTH (unsigned long long, ULLONG_MAX, ULLONG_WIDTH); | |
83 | return result; | |
84 | } | |
85 | ||
86 | #define TEST_FUNCTION do_test () | |
87 | #include "../test-skeleton.c" |