1/* Test program for character classes and mappings.
2 Copyright (C) 1999-2022 Free Software Foundation, Inc.
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
17 <https://www.gnu.org/licenses/>. */
18
19#include <ctype.h>
20#include <locale.h>
21#include <wchar.h>
22
23
24int
25main (void)
26{
27 const char lower[] = "abcdefghijklmnopqrstuvwxyz";
28 const char upper[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
29#define LEN (sizeof (upper) - 1)
30 const wchar_t wlower[] = L"abcdefghijklmnopqrstuvwxyz";
31 const wchar_t wupper[] = L"ABCDEFGHIJKLMNOPQRSTUVWXYZ";
32 int i;
33 int result = 0;
34
35 setlocale (LC_ALL, "test6");
36
37 for (i = 0; i < LEN; ++i)
38 {
39 /* Test basic table handling (basic == not more than 256 characters).
40 The charmaps swaps the normal lower-upper case meaning of the
41 ASCII characters used in the source code while the Unicode mapping
42 in the repertoire map has the normal correspondents. This test
43 shows the independence of the tables for `char' and `wchar_t'
44 characters. */
45
46 if (islower (lower[i]))
47 {
48 printf ("islower ('%c') false\n", lower[i]);
49 result = 1;
50 }
51 if (! isupper (lower[i]))
52 {
53 printf ("isupper ('%c') false\n", lower[i]);
54 result = 1;
55 }
56
57 if (! islower (upper[i]))
58 {
59 printf ("islower ('%c') false\n", upper[i]);
60 result = 1;
61 }
62 if (isupper (upper[i]))
63 {
64 printf ("isupper ('%c') false\n", upper[i]);
65 result = 1;
66 }
67
68 if (toupper (lower[i]) != lower[i])
69 {
70 printf ("toupper ('%c') false\n", lower[i]);
71 result = 1;
72 }
73 if (tolower (lower[i]) != upper[i])
74 {
75 printf ("tolower ('%c') false\n", lower[i]);
76 result = 1;
77 }
78
79 if (tolower (upper[i]) != upper[i])
80 {
81 printf ("tolower ('%c') false\n", upper[i]);
82 result = 1;
83 }
84 if (toupper (upper[i]) != lower[i])
85 {
86 printf ("toupper ('%c') false\n", upper[i]);
87 result = 1;
88 }
89
90 if (iswlower (wupper[i]))
91 {
92 printf ("iswlower (L'%c') false\n", upper[i]);
93 result = 1;
94 }
95 if (! iswupper (wupper[i]))
96 {
97 printf ("iswupper (L'%c') false\n", upper[i]);
98 result = 1;
99 }
100
101 if (iswupper (wlower[i]))
102 {
103 printf ("iswupper (L'%c') false\n", lower[i]);
104 result = 1;
105 }
106 if (! iswlower (wlower[i]))
107 {
108 printf ("iswlower (L'%c') false\n", lower[i]);
109 result = 1;
110 }
111
112 if (towupper (wlower[i]) != wupper[i])
113 {
114 printf ("towupper ('%c') false\n", lower[i]);
115 result = 1;
116 }
117 if (towlower (wlower[i]) != wlower[i])
118 {
119 printf ("towlower ('%c') false\n", lower[i]);
120 result = 1;
121 }
122
123 if (towlower (wupper[i]) != wlower[i])
124 {
125 printf ("towlower ('%c') false\n", upper[i]);
126 result = 1;
127 }
128 if (towupper (wupper[i]) != wupper[i])
129 {
130 printf ("towupper ('%c') false\n", upper[i]);
131 result = 1;
132 }
133 }
134
135 return result;
136}
137

source code of glibc/localedata/tests/test6.c