localedata/tst-numeric.c

   1 /* Testing the implementation of LC_NUMERIC and snprintf().
   2    Copyright (C) 2003 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4    Contributed by Petter Reinholdtsen <pere@hungry.com>, 2003
   5
   6    Based on tst-fmon.c by Jochen Hein <jochen.hein@delphi.central.de>, 1997.
   7
   8    The GNU C Library is free software; you can redistribute it and/or
   9    modify it under the terms of the GNU Lesser General Public
  10    License as published by the Free Software Foundation; either
  11    version 2.1 of the License, or (at your option) any later version.
  12
  13    The GNU C Library is distributed in the hope that it will be useful,
  14    but WITHOUT ANY WARRANTY; without even the implied warranty of
  15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16    Lesser General Public License for more details.
  17
  18    You should have received a copy of the GNU Lesser General Public
  19    License along with the GNU C Library; if not, write to the Free
  20    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  21    02111-1307 USA.  */
  22
  23 #include <stdio.h>
  24 #include <locale.h>
  25 #include <string.h>
  26 #include <stdlib.h>
  27
  28 /*
  29   test-numeric gets called with three parameters:
  30    - the locale
  31    - the format-string to be used
  32    - the actual number to be formatted
  33    - the expected string
  34    If the test passes, test-numeric terminates with returncode 0,
  35    otherwise with 1
  36 */
  37 #define EXIT_SUCCESS 0
  38 #define EXIT_FAILURE 1
  39 #define EXIT_SETLOCALE 2
  40 #define EXIT_SNPRINTF 3
  41
  42 int
  43 main (int argc, char *argv[])
  44 {
  45   char *s = malloc (201);
  46   double val;
  47
  48   /* Make sure to read the value before setting of the locale, as
  49      strtod() is locale-dependent. */
  50   val = strtod (argv[3], NULL);
  51
  52   if (setlocale (LC_ALL, argv[1]) == NULL)
  53     {
  54       perror ("setlocale");
  55       exit (EXIT_SETLOCALE);
  56     }
  57
  58   if (snprintf (s, 200, argv[2], val) == -1)
  59     {
  60       perror ("snprintf");
  61       exit (EXIT_SNPRINTF);
  62     }
  63
  64   if (strcmp (s, argv[4]) != 0)
  65     {
  66       printf ("\
  67 locale: \"%s\", format: \"%s\", expected: \"%s\", got: \"%s\" => %s\n",
  68               argv[1], argv[2], argv[4], s,
  69               strcmp (s, argv[4]) != 0 ? "false" : "correct");
  70       exit (EXIT_FAILURE);
  71     }
  72
  73   return EXIT_SUCCESS;
  74 }