test-wchar.c

   1 /*      $Id: test-wchar.c,v 1.4 2016/07/31 09:29:13 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 #if defined(__linux__) || defined(__MINT__)
  19 #define _GNU_SOURCE /* wcwidth() */
  20 #endif
  21
  22 #include <locale.h>
  23 #include <stdio.h>
  24 #include <wchar.h>
  25 #include <unistd.h>
  26
  27 int
  28 main(void)
  29 {
  30         wchar_t  wc;
  31         int      width;
  32
  33         if (setlocale(LC_ALL, "") == NULL) {
  34                 fputs("setlocale(LC_ALL, \"\") failed\n", stderr);
  35                 return 1;
  36         }
  37
  38         if (setlocale(LC_CTYPE, UTF8_LOCALE) == NULL) {
  39                 fprintf(stderr, "setlocale(LC_CTYPE, \"%s\") failed\n",
  40                     UTF8_LOCALE);
  41                 return 1;
  42         }
  43
  44         if (sizeof(wchar_t) < 4) {
  45                 fprintf(stderr, "wchar_t is only %zu bytes\n",
  46                     sizeof(wchar_t));
  47                 return 1;
  48         }
  49
  50         if ((width = wcwidth(L' ')) != 1) {
  51                 fprintf(stderr, "wcwidth(L' ') returned %d\n", width);
  52                 return 1;
  53         }
  54
  55         dup2(STDERR_FILENO, STDOUT_FILENO);
  56         wc = L'*';
  57         if (putwchar(wc) != (wint_t)wc) {
  58                 fputs("bad putwchar return value\n", stderr);
  59                 return 1;
  60         }
  61
  62         return 0;
  63 }