wcsmbs/tst-mbrtowc.c

   1 /* Copyright (C) 2000, 2001 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3    Contributed by Ulrich Drepper <drepper@redhat.com>, 2000.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Library General Public License as
   7    published by the Free Software Foundation; either version 2 of the
   8    License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Library General Public License for more details.
  14
  15    You should have received a copy of the GNU Library General Public
  16    License along with the GNU C Library; see the file COPYING.LIB.  If not,
  17    write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  18    Boston, MA 02111-1307, USA.  */
  19
  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 static int check_ascii (const char *locname);
  29
  30 /* Test for mbrtowc, contributed by Markus Kuhn <mkuhn@acm.org>.  */
  31 static int
  32 utf8_test (void)
  33 {
  34   /* UTF-8 single byte feeding test for mbrtowc().  */
  35   wchar_t wc;
  36   mbstate_t s;
  37   const char *locale = "de_DE.UTF-8";
  38
  39   if (!setlocale (LC_CTYPE, locale))
  40     {
  41       fprintf (stderr, "locale '%s' not available!\n", locale);
  42       exit (1);
  43     }
  44   wc = 42;                      /* arbitrary number */
  45   memset (&s, 0, sizeof (s));   /* get s into initial state */
  46   assert (mbrtowc (&wc, "\xE2", 1, &s) == (size_t) - 2);        /* 1st byte processed */
  47   assert (mbrtowc (&wc, "\x89", 1, &s) == (size_t) - 2);        /* 2nd byte processed */
  48   assert (wc == 42);            /* no value has not been stored into &wc yet */
  49   assert (mbrtowc (&wc, "\xA0", 1, &s) == 1);   /* 3nd byte processed */
  50   assert (wc == 0x2260);        /* E2 89 A0 = U+2260 (not equal) decoded correctly */
  51   assert (mbrtowc (&wc, "", 1, &s) == 0);       /* test final byte processing */
  52   assert (wc == 0);             /* test final byte decoding */
  53
  54   return 0;
  55 }
  56
  57
  58 int
  59 main (void)
  60 {
  61   int result = 0;
  62
  63   /* Check mapping of ASCII range for some character sets which have
  64      ASCII as a subset.  For those the wide char generated must have
  65      the same value.  */
  66   setlocale (LC_ALL, "C");
  67   result |= check_ascii (setlocale (LC_ALL, NULL));
  68
  69   setlocale (LC_ALL, "de_DE.UTF-8");
  70   result |= check_ascii (setlocale (LC_ALL, NULL));
  71   result |= utf8_test ();
  72
  73   setlocale (LC_ALL, "ja_JP.EUC-JP");
  74   result |= check_ascii (setlocale (LC_ALL, NULL));
  75
  76   return result;
  77 }
  78
  79
  80 static int
  81 check_ascii (const char *locname)
  82 {
  83   int c;
  84   int res = 0;
  85
  86   printf ("Testing locale \"%s\":\n", locname);
  87
  88   for (c = 0; c <= 127; ++c)
  89     {
  90       char buf[MB_CUR_MAX];
  91       wchar_t wc = 0xffffffff;
  92       mbstate_t s;
  93       size_t n;
  94       int i;
  95
  96       for (i = 0; i < MB_CUR_MAX; ++i)
  97         buf[i] = c + i;
  98
  99       memset (&s, '\0', sizeof (s));
 100
 101       n = mbrtowc (&wc, buf, MB_CUR_MAX, &s);
 102       if (n == (size_t) -1)
 103         {
 104           printf ("%s: '\\x%x': encoding error\n", locname, c);
 105           ++res;
 106         }
 107       else if (n == (size_t) -2)
 108         {
 109           printf ("%s: '\\x%x': incomplete character\n", locname, c);
 110           ++res;
 111         }
 112       else if (n == 0 && c != 0)
 113         {
 114           printf ("%s: '\\x%x': 0 returned\n", locname, c);
 115           ++res;
 116         }
 117       else if (n != 0 && c == 0)
 118         {
 119           printf ("%s: '\\x%x': not 0 returned\n", locname, c);
 120           ++res;
 121         }
 122       else if (c != 0 && n != 1)
 123         {
 124           printf ("%s: '\\x%x': not 1 returned\n", locname, c);
 125           ++res;
 126         }
 127       else if (wc != (wchar_t) c)
 128         {
 129           printf ("%s: '\\x%x': wc != L'\\x%x'\n", locname, c, c);
 130           ++res;
 131         }
 132     }
 133
 134   printf (res == 1 ? "%d error\n" : "%d errors\n", res);
 135
 136   return res != 0;
 137 }