1  /* Test of strtod() in a French locale.
       2     Copyright (C) 2019-2021 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  #include <config.h>
      18  
      19  #include <stdlib.h>
      20  
      21  #include <errno.h>
      22  #include <locale.h>
      23  
      24  #include "macros.h"
      25  
      26  int
      27  main (int argc, char *argv[])
      28  {
      29    /* Try to set the locale by implicitly looking at the LC_ALL environment
      30       variable.
      31       configure should already have checked that the locale is supported.  */
      32    if (setlocale (LC_ALL, "") == NULL)
      33      return 1;
      34  
      35    {
      36      const char input[] = "1,";
      37      char *ptr;
      38      double result;
      39      errno = 0;
      40      result = strtod (input, &ptr);
      41      ASSERT (result == 1.0);
      42      ASSERT (ptr == input + 2);
      43      ASSERT (errno == 0);
      44    }
      45    {
      46      const char input[] = ",5";
      47      char *ptr;
      48      double result;
      49      errno = 0;
      50      result = strtod (input, &ptr);
      51      ASSERT (result == 0.5);
      52      ASSERT (ptr == input + 2);
      53      ASSERT (errno == 0);
      54    }
      55    {
      56      const char input[] = "1,5";
      57      char *ptr;
      58      double result;
      59      errno = 0;
      60      result = strtod (input, &ptr);
      61      ASSERT (result == 1.5);
      62      ASSERT (ptr == input + 3);
      63      ASSERT (errno == 0);
      64    }
      65    {
      66      const char input[] = "1.5";
      67      char *ptr;
      68      double result;
      69      errno = 0;
      70      result = strtod (input, &ptr);
      71      /* On AIX 7.2, in the French locale, '.' is recognized as an alternate
      72         radix character.  */
      73      ASSERT ((ptr == input + 1 && result == 1.0)
      74              || (ptr == input + 3 && result == 1.5));
      75      ASSERT (errno == 0);
      76    }
      77    {
      78      const char input[] = "123.456,789";
      79      char *ptr;
      80      double result;
      81      errno = 0;
      82      result = strtod (input, &ptr);
      83      /* On AIX 7.2, in the French locale, '.' is recognized as an alternate
      84         radix character.  */
      85      ASSERT ((ptr == input + 3 && result == 123.0)
      86              || (ptr == input + 7 && result > 123.45 && result < 123.46));
      87      ASSERT (errno == 0);
      88    }
      89    {
      90      const char input[] = "123,456.789";
      91      char *ptr;
      92      double result;
      93      errno = 0;
      94      result = strtod (input, &ptr);
      95      ASSERT (result > 123.45 && result < 123.46);
      96      ASSERT (ptr == input + 7);
      97      ASSERT (errno == 0);
      98    }
      99  
     100    return 0;
     101  }