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      1 /*	Id: test-wchar.c,v 1.5 2018/08/15 02:15:52 schwarze Exp 	*/
      2 /*
      3  * Copyright (c) 2014 Ingo Schwarze <schwarze (at) 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 }
     60