test-vasprintf.c

   1 /*      $Id: test-vasprintf.c,v 1.2 2015/03/20 15:32:02 schwarze Exp $  */
   2 /*
   3  * Copyright (c) 2015 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 /* vasprintf() */
  20 #endif
  21
  22 #include <stdarg.h>
  23 #include <stdio.h>
  24 #include <string.h>
  25
  26 int
  27 testfunc(char **ret, const char *format, ...)
  28 {
  29         va_list  ap;
  30         int      irc;
  31
  32         va_start(ap, format);
  33         irc = vasprintf(ret, format, ap);
  34         va_end(ap);
  35
  36         return(irc);
  37 }
  38
  39 int
  40 main(void)
  41 {
  42         char    *ret;
  43
  44         if (testfunc(&ret, "%s.", "Text") != 5)
  45                 return(1);
  46         if (strcmp(ret, "Text."))
  47                 return(2);
  48         return(0);
  49 }