/* Basic tests for __strtod_internal.

   Copyright (C) 1991-2018 Free Software Foundation, Inc.

   This file is part of the GNU C Library.

   The GNU C Library is free software; you can redistribute it and/or

   modify it under the terms of the GNU Lesser General Public

   License as published by the Free Software Foundation; either

   version 2.1 of the License, or (at your option) any later version.

   The GNU C Library is distributed in the hope that it will be useful,

   but WITHOUT ANY WARRANTY; without even the implied warranty of

   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public

   License along with the GNU C Library; if not, see

   <http://www.gnu.org/licenses/>.  */

#include <ctype.h>

#include <locale.h>

#include <stddef.h>

#include <stdio.h>

#include <stdlib.h>

#include <errno.h>

#include <string.h>

#include <math.h>

/* Perform a few tests in a locale with thousands separators.  */

static int

do_test (void)

{

  static const struct

  {

    const char *loc;

    const char *str;

    double exp;

    ptrdiff_t nread;

  } tests[] =

    {

      { "de_DE.UTF-8", "1,5", 1.5, 3 },

      { "de_DE.UTF-8", "1.5", 1.0, 1 },

      { "de_DE.UTF-8", "1.500", 1500.0, 5 },

      { "de_DE.UTF-8", "36.893.488.147.419.103.232", 0x1.0p65, 26 }

    };

#define ntests (sizeof (tests) / sizeof (tests[0]))

  size_t n;

  int result = 0;

  puts ("\nLocale tests");

  for (n = 0; n < ntests; ++n)

    {

      double d;

      char *endp;

      if (setlocale (LC_ALL, tests[n].loc) == NULL)

	{

	  printf ("cannot set locale %s\n", tests[n].loc);

	  result = 1;

	  continue;

	}

      d = __strtod_internal (tests[n].str, &endp, 1);

      if (d != tests[n].exp)

	{

	  printf ("strtod(\"%s\") returns %g and not %g\n",

		  tests[n].str, d, tests[n].exp);

	  result = 1;

	}

      else if (endp - tests[n].str != tests[n].nread)

	{

	  printf ("strtod(\"%s\") read %td bytes and not %td\n",

		  tests[n].str, endp - tests[n].str, tests[n].nread);

	  result = 1;

	}

    }

  if (result == 0)

    puts ("all OK");

  return result ? EXIT_FAILURE : EXIT_SUCCESS;

}

#include <support/test-driver.c>