--- /dev/null
+/* Test of conversion of wide string to string.
+ Copyright (C) 2008 Free Software Foundation, Inc.
+
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
+
+/* Written by Bruno Haible <bruno@clisp.org>, 2008. */
+
+#include <config.h>
+
+#include <wchar.h>
+
+#include <locale.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#define ASSERT(expr) \
+ do \
+ { \
+ if (!(expr)) \
+ { \
+ fprintf (stderr, "%s:%d: assertion failed\n", __FILE__, __LINE__); \
+ fflush (stderr); \
+ abort (); \
+ } \
+ } \
+ while (0)
+
+int
+main (int argc, char *argv[])
+{
+ /* configure should already have checked that the locale is supported. */
+ if (setlocale (LC_ALL, "") == NULL)
+ return 1;
+
+ if (argc > 1)
+ {
+ wchar_t input[10];
+ size_t n;
+ const wchar_t *src;
+ #define BUFSIZE 20
+ char buf[BUFSIZE];
+ size_t ret;
+
+ {
+ size_t i;
+ for (i = 0; i < BUFSIZE; i++)
+ buf[i] = '_';
+ }
+
+ switch (argv[1][0])
+ {
+ case '1':
+ /* Locale encoding is ISO-8859-1 or ISO-8859-15. */
+ {
+ const char original[] = "B\374\337er"; /* "Büßer" */
+
+ ret = mbstowcs (input, original, 10);
+ ASSERT (ret == 5);
+
+ for (n = 0; n < 10; n++)
+ {
+ src = input;
+ ret = wcsrtombs (NULL, &src, n, NULL);
+ ASSERT (ret == 5);
+ ASSERT (src == input);
+
+ src = input;
+ ret = wcsrtombs (buf, &src, n, NULL);
+ ASSERT (ret == (n <= 5 ? n : 5));
+ ASSERT (src == (n <= 5 ? input + n : NULL));
+ ASSERT (memcmp (buf, original, ret) == 0);
+ if (src == NULL)
+ ASSERT (buf[ret] == '\0');
+ ASSERT (buf[ret + (src == NULL) + 0] == '_');
+ ASSERT (buf[ret + (src == NULL) + 1] == '_');
+ ASSERT (buf[ret + (src == NULL) + 2] == '_');
+ }
+ }
+ break;
+
+ case '2':
+ /* Locale encoding is UTF-8. */
+ {
+ const char original[] = "B\303\274\303\237er"; /* "Büßer" */
+
+ ret = mbstowcs (input, original, 10);
+ ASSERT (ret == 5);
+
+ for (n = 0; n < 10; n++)
+ {
+ src = input;
+ ret = wcsrtombs (NULL, &src, n, NULL);
+ ASSERT (ret == 7);
+ ASSERT (src == input);
+
+ src = input;
+ ret = wcsrtombs (buf, &src, n, NULL);
+ ASSERT (ret == (n < 1 ? n :
+ n < 3 ? 1 :
+ n < 5 ? 3 :
+ n <= 7 ? n : 7));
+ ASSERT (src == (n < 1 ? input + n :
+ n < 3 ? input + 1 :
+ n < 5 ? input + 2 :
+ n <= 7 ? input + (n - 2) : NULL));
+ ASSERT (memcmp (buf, original, ret) == 0);
+ if (src == NULL)
+ ASSERT (buf[ret] == '\0');
+ ASSERT (buf[ret + (src == NULL) + 0] == '_');
+ ASSERT (buf[ret + (src == NULL) + 1] == '_');
+ ASSERT (buf[ret + (src == NULL) + 2] == '_');
+ }
+ }
+ break;
+
+ case '3':
+ /* Locale encoding is EUC-JP. */
+ {
+ const char original[] = "<\306\374\313\334\270\354>"; /* "<日本語>" */
+
+ ret = mbstowcs (input, original, 10);
+ ASSERT (ret == 5);
+
+ for (n = 0; n < 10; n++)
+ {
+ src = input;
+ ret = wcsrtombs (NULL, &src, n, NULL);
+ ASSERT (ret == 8);
+ ASSERT (src == input);
+
+ src = input;
+ ret = wcsrtombs (buf, &src, n, NULL);
+ ASSERT (ret == (n < 1 ? n :
+ n < 3 ? 1 :
+ n < 5 ? 3 :
+ n < 7 ? 5 :
+ n <= 8 ? n : 8));
+ ASSERT (src == (n < 1 ? input + n :
+ n < 3 ? input + 1 :
+ n < 5 ? input + 2 :
+ n < 7 ? input + 3 :
+ n <= 8 ? input + (n - 3) : NULL));
+ ASSERT (memcmp (buf, original, ret) == 0);
+ if (src == NULL)
+ ASSERT (buf[ret] == '\0');
+ ASSERT (buf[ret + (src == NULL) + 0] == '_');
+ ASSERT (buf[ret + (src == NULL) + 1] == '_');
+ ASSERT (buf[ret + (src == NULL) + 2] == '_');
+ }
+ }
+ break;
+
+
+ case '4':
+ /* Locale encoding is GB18030. */
+ {
+ const char original[] = "B\250\271\201\060\211\070er"; /* "Büßer" */
+
+ ret = mbstowcs (input, original, 10);
+ ASSERT (ret == 5);
+
+ for (n = 0; n < 10; n++)
+ {
+ src = input;
+ ret = wcsrtombs (NULL, &src, n, NULL);
+ ASSERT (ret == 9);
+ ASSERT (src == input);
+
+ src = input;
+ ret = wcsrtombs (buf, &src, n, NULL);
+ ASSERT (ret == (n < 1 ? n :
+ n < 3 ? 1 :
+ n < 7 ? 3 :
+ n <= 9 ? n : 9));
+ ASSERT (src == (n < 1 ? input + n :
+ n < 3 ? input + 1 :
+ n < 7 ? input + 2 :
+ n <= 9 ? input + (n - 4) : NULL));
+ ASSERT (memcmp (buf, original, ret) == 0);
+ if (src == NULL)
+ ASSERT (buf[ret] == '\0');
+ ASSERT (buf[ret + (src == NULL) + 0] == '_');
+ ASSERT (buf[ret + (src == NULL) + 1] == '_');
+ ASSERT (buf[ret + (src == NULL) + 2] == '_');
+ }
+ }
+ break;
+
+ default:
+ return 1;
+ }
+
+ return 0;
+ }
+
+ return 1;
+}
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