src/tests/system/libroot/posix/gnulib-test-wcsrtombs.c

   1 /* Test of conversion of wide string to string.
   2    Copyright (C) 2008-2011 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 <http://www.gnu.org/licenses/>.  */
  16
  17 /* Written by Bruno Haible <bruno@clisp.org>, 2008.  */
  18
  19 #undef NDEBUG
  20 #include <assert.h>
  21 #include <locale.h>
  22 #include <stdio.h>
  23 #include <stdlib.h>
  24 #include <string.h>
  25 #include <wchar.h>
  26
  27
  28 #define BUFSIZE 20
  29
  30
  31 int
  32 main (int argc, char *argv[])
  33 {
  34   int mode;
  35
  36   for (mode = '0'; mode <= '4'; ++mode)
  37     {
  38       wchar_t input[10];
  39       size_t n;
  40       const wchar_t *src;
  41       char buf[BUFSIZE];
  42       size_t ret;
  43
  44       {
  45         size_t i;
  46         for (i = 0; i < BUFSIZE; i++)
  47           buf[i] = '_';
  48       }
  49
  50       switch (mode)
  51         {
  52         case '0':
  53           /* Locale encoding is POSIX  */
  54           printf("POSIX ...\n");
  55           {
  56             const char original[] = "Buesser";
  57
  58             ret = mbstowcs (input, original, 10);
  59             assert(ret == 7);
  60
  61             for (n = 0; n < 10; n++)
  62               {
  63                 src = input;
  64                 ret = wcsrtombs (NULL, &src, n, NULL);
  65                 assert(ret == 7);
  66                 assert(src == input);
  67
  68                 src = input;
  69                 ret = wcsrtombs (buf, &src, n, NULL);
  70                 assert(ret == (n <= 7 ? n : 7));
  71                 assert(src == (n <= 7 ? input + n : NULL));
  72                 assert(memcmp (buf, original, ret) == 0);
  73                 if (src == NULL)
  74                   assert(buf[ret] == '\0');
  75                 assert(buf[ret + (src == NULL) + 0] == '_');
  76                 assert(buf[ret + (src == NULL) + 1] == '_');
  77                 assert(buf[ret + (src == NULL) + 2] == '_');
  78               }
  79
  80             input[2] = 0xDEADBEEFul;
  81                         src = input;
  82                         ret = wcsrtombs(buf, &src, BUFSIZE, NULL);
  83                         assert(ret == (size_t)-1);
  84                         assert(src == input + 2);
  85           }
  86           break;
  87
  88         case '1':
  89           /* Locale encoding is ISO-8859-1 or ISO-8859-15.  */
  90           printf("ISO8859-1 ...\n");
  91           {
  92             const char original[] = "B\374\337er"; /* "Büßer" */
  93
  94             if (setlocale (LC_ALL, "en_US.ISO8859-1") == NULL)
  95               {
  96                     fprintf(stderr, "unable to set ISO8859-1 locale, skipping\n");
  97                     break;
  98               }
  99
 100             ret = mbstowcs (input, original, 10);
 101             assert(ret == 5);
 102
 103             for (n = 0; n < 10; n++)
 104               {
 105                 src = input;
 106                 ret = wcsrtombs (NULL, &src, n, NULL);
 107                 assert(ret == 5);
 108                 assert(src == input);
 109
 110                 src = input;
 111                 ret = wcsrtombs (buf, &src, n, NULL);
 112                 assert(ret == (n <= 5 ? n : 5));
 113                 assert(src == (n <= 5 ? input + n : NULL));
 114                 assert(memcmp (buf, original, ret) == 0);
 115                 if (src == NULL)
 116                   assert(buf[ret] == '\0');
 117                 assert(buf[ret + (src == NULL) + 0] == '_');
 118                 assert(buf[ret + (src == NULL) + 1] == '_');
 119                 assert(buf[ret + (src == NULL) + 2] == '_');
 120               }
 121           }
 122           break;
 123
 124         case '2':
 125           /* Locale encoding is UTF-8.  */
 126           printf("UTF-8 ... \n");
 127           {
 128             const char original[] = "B\303\274\303\237er"; /* "Büßer" */
 129
 130             if (setlocale (LC_ALL, "en_US.UTF-8") == NULL)
 131               {
 132                     fprintf(stderr, "unable to set UTF-8 locale, skipping\n");
 133                     break;
 134               }
 135
 136             ret = mbstowcs (input, original, 10);
 137             assert(ret == 5);
 138
 139             for (n = 0; n < 10; n++)
 140               {
 141                 src = input;
 142                 ret = wcsrtombs (NULL, &src, n, NULL);
 143                 assert(ret == 7);
 144                 assert(src == input);
 145
 146                 src = input;
 147                 ret = wcsrtombs (buf, &src, n, NULL);
 148                 assert(ret == (n < 1 ? n :
 149                                 n < 3 ? 1 :
 150                                 n < 5 ? 3 :
 151                                 n <= 7 ? n : 7));
 152                 assert(src == (n < 1 ? input + n :
 153                                 n < 3 ? input + 1 :
 154                                 n < 5 ? input + 2 :
 155                                 n <= 7 ? input + (n - 2) : NULL));
 156                 assert(memcmp (buf, original, ret) == 0);
 157                 if (src == NULL)
 158                   assert(buf[ret] == '\0');
 159                 assert(buf[ret + (src == NULL) + 0] == '_');
 160                 assert(buf[ret + (src == NULL) + 1] == '_');
 161                 assert(buf[ret + (src == NULL) + 2] == '_');
 162               }
 163
 164             input[2] = 0xDEADBEEFul;
 165                         src = input;
 166                         ret = wcsrtombs(buf, &src, BUFSIZE, NULL);
 167                         assert(ret == (size_t)-1);
 168                         assert(src == input + 2);
 169           }
 170           break;
 171
 172         case '3':
 173           /* Locale encoding is EUC-JP.  */
 174           printf("EUC-JP ... \n");
 175           {
 176             const char original[] = "<\306\374\313\334\270\354>"; /* "<日本語>" */
 177
 178             if (setlocale (LC_ALL, "en_US.EUC-JP") == NULL)
 179               {
 180                     fprintf(stderr, "unable to set EUC-JP locale, skipping\n");
 181                     break;
 182               }
 183
 184             ret = mbstowcs (input, original, 10);
 185             assert(ret == 5);
 186
 187             for (n = 0; n < 10; n++)
 188               {
 189                 src = input;
 190                 ret = wcsrtombs (NULL, &src, n, NULL);
 191                 assert(ret == 8);
 192                 assert(src == input);
 193
 194                 src = input;
 195                 ret = wcsrtombs (buf, &src, n, NULL);
 196                 assert(ret == (n < 1 ? n :
 197                                 n < 3 ? 1 :
 198                                 n < 5 ? 3 :
 199                                 n < 7 ? 5 :
 200                                 n <= 8 ? n : 8));
 201                 assert(src == (n < 1 ? input + n :
 202                                 n < 3 ? input + 1 :
 203                                 n < 5 ? input + 2 :
 204                                 n < 7 ? input + 3 :
 205                                 n <= 8 ? input + (n - 3) : NULL));
 206                 assert(memcmp (buf, original, ret) == 0);
 207                 if (src == NULL)
 208                   assert(buf[ret] == '\0');
 209                 assert(buf[ret + (src == NULL) + 0] == '_');
 210                 assert(buf[ret + (src == NULL) + 1] == '_');
 211                 assert(buf[ret + (src == NULL) + 2] == '_');
 212               }
 213           }
 214           break;
 215
 216
 217         case '4':
 218           printf("GB18030 ... \n");
 219           /* Locale encoding is GB18030.  */
 220           {
 221             const char original[] = "B\250\271\201\060\211\070er"; /* "Büßer" */
 222
 223             if (setlocale (LC_ALL, "en_US.GB18030") == NULL)
 224               {
 225                     fprintf(stderr, "unable to set GB18030 locale, skipping\n");
 226                     break;
 227               }
 228
 229             ret = mbstowcs (input, original, 10);
 230             assert(ret == 5);
 231
 232             for (n = 0; n < 10; n++)
 233               {
 234                 src = input;
 235                 ret = wcsrtombs (NULL, &src, n, NULL);
 236                 assert(ret == 9);
 237                 assert(src == input);
 238
 239                 src = input;
 240                 ret = wcsrtombs (buf, &src, n, NULL);
 241                 assert(ret == (n < 1 ? n :
 242                                 n < 3 ? 1 :
 243                                 n < 7 ? 3 :
 244                                 n <= 9 ? n : 9));
 245                 assert(src == (n < 1 ? input + n :
 246                                 n < 3 ? input + 1 :
 247                                 n < 7 ? input + 2 :
 248                                 n <= 9 ? input + (n - 4) : NULL));
 249                 assert(memcmp (buf, original, ret) == 0);
 250                 if (src == NULL)
 251                   assert(buf[ret] == '\0');
 252                 assert(buf[ret + (src == NULL) + 0] == '_');
 253                 assert(buf[ret + (src == NULL) + 1] == '_');
 254                 assert(buf[ret + (src == NULL) + 2] == '_');
 255               }
 256           }
 257           break;
 258
 259         default:
 260           return 1;
 261         }
 262     }
 263
 264   return 0;
 265 }