root/maint/gnulib/tests/test-vasnprintf-posix2.c

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DEFINITIONS

This source file includes following definitions.
  1. main

   1 /* Test of POSIX compatible vasnprintf() and asnprintf() functions.
   2    Copyright (C) 2007-2021 Free Software Foundation, Inc.
   3 
   4    This program is free software: you can redistribute it and/or modify
   5    it under the terms of the GNU General Public License as published by
   6    the Free Software Foundation; either version 3 of the License, or
   7    (at your option) any later version.
   8 
   9    This program is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12    GNU General Public License for more details.
  13 
  14    You should have received a copy of the GNU General Public License
  15    along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
  16 
  17 /* Written by Bruno Haible <bruno@clisp.org>, 2007.  */
  18 
  19 #include <config.h>
  20 
  21 #include "vasnprintf.h"
  22 
  23 #include <locale.h>
  24 #include <stdlib.h>
  25 #include <string.h>
  26 
  27 #include "macros.h"
  28 
  29 int
  30 main (int argc, char *argv[])
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  31 {
  32   /* configure should already have checked that the locale is supported.  */
  33   if (setlocale (LC_ALL, "") == NULL)
  34     return 1;
  35 
  36   /* Test that a locale dependent decimal point is used.  */
  37   {
  38     size_t length;
  39     char *result = asnprintf (NULL, &length, "%.1a", 1.0);
  40     ASSERT (result != NULL);
  41     ASSERT (strcmp (result, "0x1,0p+0") == 0
  42             || strcmp (result, "0x2,0p-1") == 0
  43             || strcmp (result, "0x4,0p-2") == 0
  44             || strcmp (result, "0x8,0p-3") == 0);
  45     ASSERT (length == strlen (result));
  46     free (result);
  47   }
  48 
  49   /* Test that a locale dependent decimal point is used.  */
  50   {
  51     size_t length;
  52     char *result = asnprintf (NULL, &length, "%.1La", 1.0L);
  53     ASSERT (result != NULL);
  54     ASSERT (strcmp (result, "0x1,0p+0") == 0
  55             || strcmp (result, "0x2,0p-1") == 0
  56             || strcmp (result, "0x4,0p-2") == 0
  57             || strcmp (result, "0x8,0p-3") == 0);
  58     ASSERT (length == strlen (result));
  59     free (result);
  60   }
  61 
  62   return 0;
  63 }

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