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

   1 /* Test of conversion of wide character to multibyte character.
   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 #include <assert.h>
  20 #include <locale.h>
  21 #include <stdlib.h>
  22 #include <string.h>
  23 #include <wchar.h>
  24
  25 /* Check the multibyte character s[0..n-1].  */
  26 static void
  27 check_character (const char *s, size_t n)
  28 {
  29   wchar_t wc;
  30   char buf[64];
  31   int iret;
  32   size_t ret;
  33
  34   wc = (wchar_t) 0xBADFACE;
  35   iret = mbtowc (&wc, s, n);
  36   assert (iret == (int)n);
  37
  38   ret = wcrtomb (buf, wc, NULL);
  39   assert (ret == n);
  40   assert (memcmp (buf, s, n) == 0);
  41
  42   /* Test special calling convention, passing a NULL pointer.  */
  43   ret = wcrtomb (NULL, wc, NULL);
  44
  45   assert (ret == 1);
  46 }
  47
  48 int
  49 main (int argc, char *argv[])
  50 {
  51   char buf[64];
  52   size_t ret;
  53   int i;
  54
  55   /* configure should already have checked that the locale is supported.  */
  56   if (setlocale (LC_ALL, "") == NULL) {
  57         fprintf(stderr, "unable to set standard locale\n");
  58     return 1;
  59   }
  60
  61   /* Test NUL character.  */
  62   printf("NUL character ...\n");
  63   {
  64     buf[0] = 'x';
  65     ret = wcrtomb (buf, 0, NULL);
  66     assert (ret == 1);
  67     assert (buf[0] == '\0');
  68   }
  69
  70   /* Test single bytes.  */
  71   printf("single bytes ...\n");
  72   {
  73     int c;
  74
  75     for (c = 0; c < 0x100; c++)
  76       switch (c)
  77         {
  78         case '\t': case '\v': case '\f':
  79         case ' ': case '!': case '"': case '#': case '%':
  80         case '&': case '\'': case '(': case ')': case '*':
  81         case '+': case ',': case '-': case '.': case '/':
  82         case '0': case '1': case '2': case '3': case '4':
  83         case '5': case '6': case '7': case '8': case '9':
  84         case ':': case ';': case '<': case '=': case '>':
  85         case '?':
  86         case 'A': case 'B': case 'C': case 'D': case 'E':
  87         case 'F': case 'G': case 'H': case 'I': case 'J':
  88         case 'K': case 'L': case 'M': case 'N': case 'O':
  89         case 'P': case 'Q': case 'R': case 'S': case 'T':
  90         case 'U': case 'V': case 'W': case 'X': case 'Y':
  91         case 'Z':
  92         case '[': case '\\': case ']': case '^': case '_':
  93         case 'a': case 'b': case 'c': case 'd': case 'e':
  94         case 'f': case 'g': case 'h': case 'i': case 'j':
  95         case 'k': case 'l': case 'm': case 'n': case 'o':
  96         case 'p': case 'q': case 'r': case 's': case 't':
  97         case 'u': case 'v': case 'w': case 'x': case 'y':
  98         case 'z': case '{': case '|': case '}': case '~':
  99           /* c is in the ISO C "basic character set".  */
 100           ret = wcrtomb (buf, btowc (c), NULL);
 101           assert (ret == 1);
 102           assert (buf[0] == (char) c);
 103           break;
 104         }
 105   }
 106
 107   /* Test special calling convention, passing a NULL pointer.  */
 108   printf("special calling convention with NULL pointer ...\n");
 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   for (i = '1'; i <= '4'; ++i) {
 117     switch (i)
 118       {
 119       case '1':
 120         /* Locale encoding is ISO-8859-1 or ISO-8859-15.  */
 121         printf("ISO8859-1 ...\n");
 122         {
 123           const char input[] = "B\374\337er"; /* "Büßer" */
 124
 125           if (setlocale (LC_ALL, "en_US.ISO8859-1") == NULL) {
 126                   fprintf(stderr, "unable to set ISO8859-1 locale, skipping\n");
 127                   break;
 128           }
 129
 130           check_character (input + 1, 1);
 131           check_character (input + 2, 1);
 132         }
 133         break;
 134
 135       case '2':
 136         /* Locale encoding is UTF-8.  */
 137         printf("UTF-8 ...\n");
 138         {
 139           const char input[] = "B\303\274\303\237er"; /* "Büßer" */
 140
 141                   if (setlocale (LC_ALL, "en_US.UTF-8") == NULL) {
 142                           fprintf(stderr, "unable to set UTF-8 locale, skipping\n");
 143                           break;
 144                   }
 145
 146           check_character (input + 1, 2);
 147           check_character (input + 3, 2);
 148         }
 149         break;
 150
 151       case '3':
 152         /* Locale encoding is EUC-JP.  */
 153         printf("EUC-JP ...\n");
 154         {
 155           const char input[] = "<\306\374\313\334\270\354>"; /* "<日本語>" */
 156
 157                   if (setlocale (LC_ALL, "en_US.EUC-JP") == NULL) {
 158                           fprintf(stderr, "unable to set EUC-JP locale, skipping\n");
 159                           break;
 160                   }
 161
 162           check_character (input + 1, 2);
 163           check_character (input + 3, 2);
 164           check_character (input + 5, 2);
 165         }
 166         break;
 167
 168       case '4':
 169         /* Locale encoding is GB18030.  */
 170         printf("GB18030 ...\n");
 171         {
 172           const char input[] = "B\250\271\201\060\211\070er"; /* "Büßer" */
 173
 174                   if (setlocale (LC_ALL, "en_US.GB18030") == NULL) {
 175                           fprintf(stderr, "unable to set GB18030 locale, skipping\n");
 176                           break;
 177                   }
 178
 179                   check_character (input + 1, 2);
 180           check_character (input + 3, 4);
 181         }
 182         break;
 183       }
 184   }
 185
 186   return 0;
 187 }