1 /* Test of conversion of wide character to multibyte character.
2 Copyright (C) 2008-2023 Free Software Foundation, Inc.
3
4 This program is free software: you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation, either version 3 of the License, or
7 (at your option) any later version.
8
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
13
14 You should have received a copy of the GNU General Public License
15 along with this program. If not, see <https://www.gnu.org/licenses/>. */
16
17 /* Written by Bruno Haible <bruno@clisp.org>, 2008. */
18
19 #include <config.h>
20
21 #include <wchar.h>
22
23 #include "signature.h"
24 SIGNATURE_CHECK (wcrtomb, size_t, (char *, wchar_t, mbstate_t *));
25
26 #include <locale.h>
27 #include <stdlib.h>
28 #include <string.h>
29
30 #include "macros.h"
31
32 /* Check the multibyte character s[0..n-1]. */
33 static void
34 check_character (const char *s, size_t n)
35 {
36 wchar_t wc;
37 char buf[64];
38 int iret;
39 size_t ret;
40
41 wc = (wchar_t) 0xBADFACE;
42 iret = mbtowc (&wc, s, n);
43 ASSERT (iret == n);
44
45 ret = wcrtomb (buf, wc, NULL);
46 ASSERT (ret == n);
47 ASSERT (memcmp (buf, s, n) == 0);
48
49 /* Test special calling convention, passing a NULL pointer. */
50 ret = wcrtomb (NULL, wc, NULL);
51 ASSERT (ret == 1);
52 }
53
54 int
55 main (int argc, char *argv[])
56 {
57 char buf[64];
58 size_t ret;
59
60 /* configure should already have checked that the locale is supported. */
61 if (setlocale (LC_ALL, "") == NULL)
62 return 1;
63
64 /* Test NUL character. */
65 {
66 buf[0] = 'x';
67 ret = wcrtomb (buf, 0, NULL);
68 ASSERT (ret == 1);
69 ASSERT (buf[0] == '\0');
70 }
71
72 /* Test single bytes. */
73 {
74 int c;
75
76 for (c = 0; c < 0x100; c++)
77 switch (c)
78 {
79 case '\t': case '\v': case '\f':
80 case ' ': case '!': case '"': case '#': case '%':
81 case '&': case '\'': case '(': case ')': case '*':
82 case '+': case ',': case '-': case '.': case '/':
83 case '0': case '1': case '2': case '3': case '4':
84 case '5': case '6': case '7': case '8': case '9':
85 case ':': case ';': case '<': case '=': case '>':
86 case '?':
87 case 'A': case 'B': case 'C': case 'D': case 'E':
88 case 'F': case 'G': case 'H': case 'I': case 'J':
89 case 'K': case 'L': case 'M': case 'N': case 'O':
90 case 'P': case 'Q': case 'R': case 'S': case 'T':
91 case 'U': case 'V': case 'W': case 'X': case 'Y':
92 case 'Z':
93 case '[': case '\\': case ']': case '^': case '_':
94 case 'a': case 'b': case 'c': case 'd': case 'e':
95 case 'f': case 'g': case 'h': case 'i': case 'j':
96 case 'k': case 'l': case 'm': case 'n': case 'o':
97 case 'p': case 'q': case 'r': case 's': case 't':
98 case 'u': case 'v': case 'w': case 'x': case 'y':
99 case 'z': case '{': case '|': case '}': case '~':
100 /* c is in the ISO C "basic character set". */
101 ret = wcrtomb (buf, btowc (c), NULL);
102 ASSERT (ret == 1);
103 ASSERT (buf[0] == (char) c);
104 break;
105 }
106 }
107
108 /* Test special calling convention, passing a NULL pointer. */
109 {
110 ret = wcrtomb (NULL, '\0', NULL);
111 ASSERT (ret == 1);
112 ret = wcrtomb (NULL, btowc ('x'), NULL);
113 ASSERT (ret == 1);
114 }
115
116 if (argc > 1)
117 switch (argv[1][0])
118 {
119 case '1':
120 /* Locale encoding is ISO-8859-1 or ISO-8859-15. */
121 {
122 const char input[] = "B\374\337er"; /* "Büßer" */
123
124 check_character (input + 1, 1);
125 check_character (input + 2, 1);
126 }
127 return 0;
128
129 case '2':
130 /* Locale encoding is UTF-8. */
131 {
132 const char input[] = "B\303\274\303\237er"; /* "Büßer" */
133
134 check_character (input + 1, 2);
135 check_character (input + 3, 2);
136 }
137 return 0;
138
139 case '3':
140 /* Locale encoding is EUC-JP. */
141 {
142 const char input[] = "<\306\374\313\334\270\354>"; /* "<日本語>" */
143
144 check_character (input + 1, 2);
145 check_character (input + 3, 2);
146 check_character (input + 5, 2);
147 }
148 return 0;
149
150 case '4':
151 /* Locale encoding is GB18030. */
152 {
153 const char input[] = "B\250\271\201\060\211\070er"; /* "Büßer" */
154
155 check_character (input + 1, 2);
156 check_character (input + 3, 4);
157 }
158 return 0;
159
160 case '5':
161 /* C locale; tested above. */
162 return 0;
163 }
164
165 return 1;
166 }