/* Test locale support, or attempt to do so.

Copyright 2001, 2002, 2011, 2014 Free Software Foundation, Inc.

This file is part of the GNU MP Library test suite.

The GNU MP Library test suite is free software; you can redistribute it

and/or modify it under the terms of the GNU General Public License as

published by the Free Software Foundation; either version 3 of the License,

or (at your option) any later version.

The GNU MP Library test suite 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 General

Public License for more details.

You should have received a copy of the GNU General Public License along with

the GNU MP Library test suite.  If not, see https://www.gnu.org/licenses/.  */

#define _GNU_SOURCE    /* for DECIMAL_POINT in glibc langinfo.h */

#include "config.h"

#include <stdio.h>

#include <stdlib.h>

#include <string.h>

#if HAVE_NL_TYPES_H

#include <nl_types.h>  /* for nl_item (on netbsd 1.4.1 at least) */

#endif

#if HAVE_LANGINFO_H

#include <langinfo.h>  /* for nl_langinfo */

#endif

#if HAVE_LOCALE_H

#include <locale.h>    /* for lconv */

#endif

#include "gmp.h"

#include "gmp-impl.h"

#include "tests.h"

const char *decimal_point;

/* Replace the libc localeconv with one we can manipulate. */

#if HAVE_LOCALECONV && ! defined __MINGW32__

struct lconv *

localeconv (void)

#if defined __cplusplus && defined __GLIBC__

  throw()

#endif

{

  static struct lconv  l;

  l.decimal_point = (char *) decimal_point;

  return &l;

}

#endif

/* Replace the libc nl_langinfo with one we can manipulate. */

#if HAVE_NL_LANGINFO

char *

nl_langinfo (nl_item n)

#if defined __cplusplus && defined __GLIBC__

  throw()

#endif

{

#if defined (DECIMAL_POINT)

  if (n == DECIMAL_POINT)

    return (char *) decimal_point;

#endif

#if defined (RADIXCHAR)

  if (n == RADIXCHAR)

    return (char *) decimal_point;

#endif

  return (char *) "";

}

#endif

void

check_input (void)

{

  static const char *point[] = {

    ".", ",", "WU", "STR", "ZTV***"

  };

  static const struct {

    const char  *str;

    double      d;

  } data[] = {

    { "1%s",   1.0 },

    { "1%s0",  1.0 },

    { "1%s00", 1.0 },

    { "%s5",    0.5 },

    { "0%s5",   0.5 },

    { "00%s5",  0.5 },

    { "00%s50", 0.5 },

    { "1%s5",    1.5 },

    { "1%s5e1", 15.0 },

  };

  int     i, j, neg, ret;

  char    str[128];

  mpf_t   f;

  double  d;

  mpf_init (f);

  for (i = 0; i < numberof (point); i++)

    {

      decimal_point = (const char *) point[i];

      for (neg = 0; neg <= 1; neg++)

        {

          for (j = 0; j < numberof (data); j++)

            {

              strcpy (str, neg ? "-" : "");

              sprintf (str+strlen(str), data[j].str, decimal_point);

              d = data[j].d;

              if (neg)

                d = -d;

              mpf_set_d (f, 123.0);

              if (mpf_set_str (f, str, 10) != 0)

                {

                  printf ("mpf_set_str error\n");

                  printf ("  point  %s\n", decimal_point);

                  printf ("  str    %s\n", str);

                  abort ();

                }

              if (mpf_cmp_d (f, d) != 0)

                {

                  printf    ("mpf_set_str wrong result\n");

                  printf    ("  point  %s\n", decimal_point);

                  printf    ("  str    %s\n", str);

                  mpf_trace ("  f", f);

                  printf    ("  d=%g\n", d);

                  abort ();

                }

              mpf_set_d (f, 123.0);

              ret = gmp_sscanf (str, "%Ff", f);

              if (ret != 1)

                {

                  printf ("gmp_sscanf wrong return value\n");

                  printf ("  point  %s\n", decimal_point);

                  printf ("  str    %s\n", str);

                  printf ("  ret    %d\n", ret);

                  abort ();

                }

              if (mpf_cmp_d (f, d) != 0)

                {

                  printf    ("gmp_sscanf wrong result\n");

                  printf    ("  point  %s\n", decimal_point);

                  printf    ("  str    %s\n", str);

                  mpf_trace ("  f", f);

                  printf    ("  d=%g\n", d);

                  abort ();

                }

            }

        }

    }

  mpf_clear (f);

}

int

main (void)

{

  /* The localeconv replacement breaks printf "%lu" on SunOS 4, so we can't

     print the seed in tests_rand_start().  Nothing random is used in this

     program though, so just use the memory tests alone.  */

  tests_memory_start ();

  {

    mpf_t  f;

    char   buf[128];

    mpf_init (f);

    decimal_point = ",";

    mpf_set_d (f, 1.5);

    gmp_snprintf (buf, sizeof(buf), "%.1Ff", f);

    mpf_clear (f);

    if (strcmp (buf, "1,5") != 0)

      {

        printf ("Test skipped, replacing localeconv/nl_langinfo doesn't work\n");

        goto done;

      }

  }

  check_input ();

 done:

  tests_memory_end ();

  exit (0);

}