test-wchar.c

   1 /*      $Id: test-wchar.c,v 1.5 2018/08/15 02:15:52 schwarze Exp $      */
   2 /*
   3  * Copyright (c) 2014 Ingo Schwarze <schwarze@openbsd.org>
   4  *
   5  * Permission to use, copy, modify, and distribute this software for any
   6  * purpose with or without fee is hereby granted, provided that the above
   7  * copyright notice and this permission notice appear in all copies.
   8  *
   9  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  10  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  11  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  12  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  13  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  14  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  15  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  16  */
  17
  18 #include <locale.h>
  19 #include <stdio.h>
  20 #include <wchar.h>
  21 #include <unistd.h>
  22
  23 int
  24 main(void)
  25 {
  26         wchar_t  wc;
  27         int      width;
  28
  29         if (setlocale(LC_ALL, "") == NULL) {
  30                 fputs("setlocale(LC_ALL, \"\") failed\n", stderr);
  31                 return 1;
  32         }
  33
  34         if (setlocale(LC_CTYPE, UTF8_LOCALE) == NULL) {
  35                 fprintf(stderr, "setlocale(LC_CTYPE, \"%s\") failed\n",
  36                     UTF8_LOCALE);
  37                 return 1;
  38         }
  39
  40         if (sizeof(wchar_t) < 4) {
  41                 fprintf(stderr, "wchar_t is only %zu bytes\n",
  42                     sizeof(wchar_t));
  43                 return 1;
  44         }
  45
  46         if ((width = wcwidth(L' ')) != 1) {
  47                 fprintf(stderr, "wcwidth(L' ') returned %d\n", width);
  48                 return 1;
  49         }
  50
  51         dup2(STDERR_FILENO, STDOUT_FILENO);
  52         wc = L'*';
  53         if (putwchar(wc) != (wint_t)wc) {
  54                 fputs("bad putwchar return value\n", stderr);
  55                 return 1;
  56         }
  57
  58         return 0;
  59 }