malloca: Silence a warning from clang's memory sanitizer.
[gnulib.git] / tests / test-wcsnrtombs.c
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1 /* Test of conversion of wide string to string.
2 Copyright (C) 2008-2017 Free Software Foundation, Inc.
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.
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.
14 You should have received a copy of the GNU General Public License
15 along with this program. If not, see <http://www.gnu.org/licenses/>. */
17 /* Written by Bruno Haible <bruno@clisp.org>, 2008. */
19 #include <config.h>
21 #include <wchar.h>
23 #include "signature.h"
24 SIGNATURE_CHECK (wcsnrtombs, size_t, (char *, wchar_t const **, size_t, size_t,
25 mbstate_t *));
27 #include <locale.h>
28 #include <stdlib.h>
29 #include <string.h>
31 #include "macros.h"
33 int
34 main (int argc, char *argv[])
36 /* configure should already have checked that the locale is supported. */
37 if (setlocale (LC_ALL, "") == NULL)
38 return 1;
40 if (argc > 1)
42 wchar_t input[10];
43 size_t n;
44 const wchar_t *src;
45 #define BUFSIZE 20
46 char buf[BUFSIZE];
47 size_t ret;
50 size_t i;
51 for (i = 0; i < BUFSIZE; i++)
52 buf[i] = '_';
55 switch (argv[1][0])
57 case '1':
58 /* Locale encoding is ISO-8859-1 or ISO-8859-15. */
60 const char original[] = "B\374\337er"; /* "Büßer" */
62 ret = mbstowcs (input, original, 10);
63 ASSERT (ret == 5);
65 for (n = 0; n < 10; n++)
67 src = input;
68 ret = wcsnrtombs (NULL, &src, 6, n, NULL);
69 ASSERT (ret == 5);
70 ASSERT (src == input);
72 src = input;
73 ret = wcsnrtombs (buf, &src, 6, n, NULL);
74 ASSERT (ret == (n <= 5 ? n : 5));
75 ASSERT (src == (n <= 5 ? input + n : NULL));
76 ASSERT (memcmp (buf, original, ret) == 0);
77 if (src == NULL)
78 ASSERT (buf[ret] == '\0');
79 ASSERT (buf[ret + (src == NULL) + 0] == '_');
80 ASSERT (buf[ret + (src == NULL) + 1] == '_');
81 ASSERT (buf[ret + (src == NULL) + 2] == '_');
84 break;
86 case '2':
87 /* Locale encoding is UTF-8. */
89 const char original[] = "B\303\274\303\237er"; /* "Büßer" */
91 ret = mbstowcs (input, original, 10);
92 ASSERT (ret == 5);
94 for (n = 0; n < 10; n++)
96 src = input;
97 ret = wcsnrtombs (NULL, &src, 6, n, NULL);
98 ASSERT (ret == 7);
99 ASSERT (src == input);
101 src = input;
102 ret = wcsnrtombs (buf, &src, 6, n, NULL);
103 ASSERT (ret == (n < 1 ? n :
104 n < 3 ? 1 :
105 n < 5 ? 3 :
106 n <= 7 ? n : 7));
107 ASSERT (src == (n < 1 ? input + n :
108 n < 3 ? input + 1 :
109 n < 5 ? input + 2 :
110 n <= 7 ? input + (n - 2) : NULL));
111 ASSERT (memcmp (buf, original, ret) == 0);
112 if (src == NULL)
113 ASSERT (buf[ret] == '\0');
114 ASSERT (buf[ret + (src == NULL) + 0] == '_');
115 ASSERT (buf[ret + (src == NULL) + 1] == '_');
116 ASSERT (buf[ret + (src == NULL) + 2] == '_');
119 break;
121 case '3':
122 /* Locale encoding is EUC-JP. */
124 const char original[] = "<\306\374\313\334\270\354>"; /* "<日本語>" */
126 ret = mbstowcs (input, original, 10);
127 ASSERT (ret == 5);
129 for (n = 0; n < 10; n++)
131 src = input;
132 ret = wcsnrtombs (NULL, &src, 6, n, NULL);
133 ASSERT (ret == 8);
134 ASSERT (src == input);
136 src = input;
137 ret = wcsnrtombs (buf, &src, 6, n, NULL);
138 ASSERT (ret == (n < 1 ? n :
139 n < 3 ? 1 :
140 n < 5 ? 3 :
141 n < 7 ? 5 :
142 n <= 8 ? n : 8));
143 ASSERT (src == (n < 1 ? input + n :
144 n < 3 ? input + 1 :
145 n < 5 ? input + 2 :
146 n < 7 ? input + 3 :
147 n <= 8 ? input + (n - 3) : NULL));
148 ASSERT (memcmp (buf, original, ret) == 0);
149 if (src == NULL)
150 ASSERT (buf[ret] == '\0');
151 ASSERT (buf[ret + (src == NULL) + 0] == '_');
152 ASSERT (buf[ret + (src == NULL) + 1] == '_');
153 ASSERT (buf[ret + (src == NULL) + 2] == '_');
156 break;
159 case '4':
160 /* Locale encoding is GB18030. */
162 const char original[] = "B\250\271\201\060\211\070er"; /* "Büßer" */
164 ret = mbstowcs (input, original, 10);
165 ASSERT (ret == 5);
167 for (n = 0; n < 10; n++)
169 src = input;
170 ret = wcsnrtombs (NULL, &src, 6, n, NULL);
171 ASSERT (ret == 9);
172 ASSERT (src == input);
174 src = input;
175 ret = wcsnrtombs (buf, &src, 6, n, NULL);
176 ASSERT (ret == (n < 1 ? n :
177 n < 3 ? 1 :
178 n < 7 ? 3 :
179 n <= 9 ? n : 9));
180 ASSERT (src == (n < 1 ? input + n :
181 n < 3 ? input + 1 :
182 n < 7 ? input + 2 :
183 n <= 9 ? input + (n - 4) : NULL));
184 ASSERT (memcmp (buf, original, ret) == 0);
185 if (src == NULL)
186 ASSERT (buf[ret] == '\0');
187 ASSERT (buf[ret + (src == NULL) + 0] == '_');
188 ASSERT (buf[ret + (src == NULL) + 1] == '_');
189 ASSERT (buf[ret + (src == NULL) + 2] == '_');
192 break;
194 default:
195 return 1;
198 return 0;
201 return 1;