1  /* Tests of __strtod_internal in a locale using decimal comma.
       2     Copyright (C) 2007-2023 Free Software Foundation, Inc.
       3     This file is part of the GNU C Library.
       4  
       5     The GNU C Library is free software; you can redistribute it and/or
       6     modify it under the terms of the GNU Lesser General Public
       7     License as published by the Free Software Foundation; either
       8     version 2.1 of the License, or (at your option) any later version.
       9  
      10     The GNU C Library is distributed in the hope that it will be useful,
      11     but WITHOUT ANY WARRANTY; without even the implied warranty of
      12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      13     Lesser General Public License for more details.
      14  
      15     You should have received a copy of the GNU Lesser General Public
      16     License along with the GNU C Library; if not, see
      17     <https://www.gnu.org/licenses/>.  */
      18  
      19  #include <locale.h>
      20  #include <stdio.h>
      21  #include <stdlib.h>
      22  #include <string.h>
      23  #include <math.h>
      24  
      25  #define NNBSP "\xe2\x80\xaf"
      26  
      27  static const struct
      28  {
      29    const char *in;
      30    int group;
      31    double expected;
      32  } tests[] =
      33    {
      34      { "0", 0, 0.0 },
      35      { "000", 0, 0.0 },
      36      { "-0", 0, -0.0 },
      37      { "-000", 0, -0.0 },
      38      { "0,", 0, 0.0 },
      39      { "-0,", 0, -0.0 },
      40      { "0,0", 0, 0.0 },
      41      { "-0,0", 0, -0.0 },
      42      { "0e-10", 0, 0.0 },
      43      { "-0e-10", 0, -0.0 },
      44      { "0,e-10", 0, 0.0 },
      45      { "-0,e-10", 0, -0.0 },
      46      { "0,0e-10", 0, 0.0 },
      47      { "-0,0e-10", 0, -0.0 },
      48      { "0e-1000000", 0, 0.0 },
      49      { "-0e-1000000", 0, -0.0 },
      50      { "0,0e-1000000", 0, 0.0 },
      51      { "-0,0e-1000000", 0, -0.0 },
      52      { "0", 1, 0.0 },
      53      { "000", 1, 0.0 },
      54      { "-0", 1, -0.0 },
      55      { "-000", 1, -0.0 },
      56      { "0e-10", 1, 0.0 },
      57      { "-0e-10", 1, -0.0 },
      58      { "0e-1000000", 1, 0.0 },
      59      { "-0e-1000000", 1, -0.0 },
      60      { "000"NNBSP"000"NNBSP"000", 1, 0.0 },
      61      { "-000"NNBSP"000"NNBSP"000", 1, -0.0 }
      62    };
      63  #define NTESTS (sizeof (tests) / sizeof (tests[0]))
      64  
      65  
      66  static int
      67  do_test (void)
      68  {
      69    if (setlocale (LC_ALL, "cs_CZ.UTF-8") == NULL)
      70      {
      71        puts ("could not set locale");
      72        return 1;
      73      }
      74  
      75    int status = 0;
      76  
      77    for (int i = 0; i < NTESTS; ++i)
      78      {
      79        char *ep;
      80        double r = __strtod_internal (tests[i].in, &ep, tests[i].group);
      81  
      82        if (*ep != '\0')
      83  	{
      84  	  printf ("%d: got rest string \"%s\", expected \"\"\n", i, ep);
      85  	  status = 1;
      86  	}
      87  
      88        if (r != tests[i].expected
      89  	  || copysign (10.0, r) != copysign (10.0, tests[i].expected))
      90  	{
      91  	  printf ("%d: got wrong results %g, expected %g\n",
      92  		  i, r, tests[i].expected);
      93  	  status = 1;
      94  	}
      95      }
      96  
      97    return status;
      98  }
      99  
     100  #include <support/test-driver.c>