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// { dg-require-namedlocale "" }

// 2000-09-13 Benjamin Kosnik <bkoz@redhat.com>

// Copyright (C) 2000, 2001, 2002, 2003, 2005 Free Software Foundation

//

// This file is part of the GNU ISO C++ Library.  This library 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 2, or (at your option)

// any later version.

// This 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 General Public License for more details.

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

// with this library; see the file COPYING.  If not, write to the Free

// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,

// USA.

// 22.1.1.2 locale constructors and destructors [lib.locale.cons]

#include <cwchar> // for mbstate_t

#include <locale>

#include <stdexcept>

#include <testsuite_hooks.h>

// More tests for locale("") == POSIX locale::name. 

void test04()

{

  bool test __attribute__((unused)) = true;

  using namespace std;

#ifdef _GLIBCXX_HAVE_SETENV

  const char* LANG_orig = getenv("LANG") ? strdup(getenv("LANG")) : "";

  const char* LC_ALL_orig = getenv("LC_ALL") ? strdup(getenv("LC_ALL")) : "";

  const char* LC_CTYPE_orig =

    getenv("LC_CTYPE") ? strdup(getenv("LC_CTYPE")) : "";

  const char* LC_NUMERIC_orig =

    getenv("LC_NUMERIC") ? strdup(getenv("LC_NUMERIC")) : "";

  const char* LC_TIME_orig =

    getenv("LC_TIME") ? strdup(getenv("LC_TIME")) : "";

  const char* LC_COLLATE_orig =

    getenv("LC_COLLATE") ? strdup(getenv("LC_COLLATE")) : "";

  const char* LC_MONETARY_orig =

    getenv("LC_MONETARY") ? strdup(getenv("LC_MONETARY")) : "";

  const char* LC_MESSAGES_orig =

    getenv("LC_MESSAGES") ? strdup(getenv("LC_MESSAGES")) : "";

#if _GLIBCXX_NUM_CATEGORIES

  const char* LC_PAPER_orig =

    getenv("LC_PAPER") ? strdup(getenv("LC_PAPER")) : "";

  const char* LC_NAME_orig =

    getenv("LC_NAME") ? strdup(getenv("LC_NAME")) : "";

  const char* LC_ADDRESS_orig =

    getenv("LC_ADDRESS") ? strdup(getenv("LC_ADDRESS")) : "";

  const char* LC_TELEPHONE_orig =

    getenv("LC_TELEPHONE") ? strdup(getenv("LC_TELEPHONE")) : "";

  const char* LC_MEASUREMENT_orig =

    getenv("LC_MEASUREMENT") ? strdup(getenv("LC_MEASUREMENT")) : "";

  const char* LC_IDENTIFICATION_orig =

    getenv("LC_IDENTIFICATION") ? strdup(getenv("LC_IDENTIFICATION")) : "";

#endif

  // Check that a "POSIX" LC_ALL is equivalent to "C".

  if (!setenv("LC_ALL", "POSIX", 1))

    {

      locale loc = locale("");

      VERIFY( loc.name() == "C" );

    }

  setenv("LC_ALL", "", 1);

  // Check that a "en_PH" LC_ALL is equivalent to "en_PH".

  if (!setenv("LC_ALL", "en_PH", 1))

    {

      locale loc = locale("");

      VERIFY( loc.name() == "en_PH" );

    }

  setenv("LC_ALL", "", 1);

  // Explicit check that LC_ALL sets regardless of LC_* and LANG.

  if (!setenv("LANG", "es_MX", 1) && !setenv("LC_COLLATE", "de_DE", 1))

    {

      if (!setenv("LC_ALL", "en_PH", 1))

        {

          locale loc = locale("");

          VERIFY( loc.name() == "en_PH" );

        }

      setenv("LC_ALL", "", 1);

      setenv("LANG", LANG_orig ? LANG_orig : "", 1);

      setenv("LC_COLLATE", LC_COLLATE_orig ? LC_COLLATE_orig : "", 1);

    }

  // NB: LANG checks all LC_* macro settings. As such, all LC_* macros

  // must be cleared for these tests, and then restored.

  setenv("LC_ALL", "", 1);

  setenv("LC_CTYPE", "", 1);

  setenv("LC_NUMERIC", "", 1);

  setenv("LC_TIME", "", 1);

  setenv("LC_COLLATE", "", 1);

  setenv("LC_MONETARY", "", 1);

  setenv("LC_MESSAGES", "", 1);

#if _GLIBCXX_NUM_CATEGORIES

  setenv("LC_PAPER", "", 1);

  setenv("LC_NAME", "", 1);

  setenv("LC_ADDRESS", "", 1);

  setenv("LC_TELEPHONE", "", 1);

  setenv("LC_MEASUREMENT", "", 1);

  setenv("LC_IDENTIFICATION", "", 1);

#endif

  // Check the default set by LANG.

  if (!setenv("LANG", "fr_FR", 1))

    {

      locale loc = locale("");

      VERIFY( loc.name() == "fr_FR" );

    }

  // Check that a "POSIX" LANG is equivalent to "C".

  if (!setenv("LANG", "POSIX", 1))

    {

      locale loc("");

      VERIFY( loc.name() == "C" );

    }

  // Setting a category in the "C" default.

  if (!setenv("LC_COLLATE", "de_DE", 1))

    {

      locale loc = locale("");

#if _GLIBCXX_NUM_CATEGORIES

      VERIFY( loc.name() == "LC_CTYPE=C;LC_NUMERIC=C;LC_TIME=C;"

              "LC_COLLATE=de_DE;LC_MONETARY=C;LC_MESSAGES=C;LC_PAPER=C;"

              "LC_NAME=C;LC_ADDRESS=C;LC_TELEPHONE=C;LC_MEASUREMENT=C;"

              "LC_IDENTIFICATION=C" );

#else

      VERIFY( loc.name() == "LC_CTYPE=C;LC_NUMERIC=C;LC_TIME=C;"

              "LC_COLLATE=de_DE;LC_MONETARY=C;LC_MESSAGES=C" );

#endif

    }

  // Changing the LANG default while LC_COLLATE is set.

  if (!setenv("LANG", "fr_FR", 1))

    {

      locale loc = locale("");

#if _GLIBCXX_NUM_CATEGORIES

      VERIFY( loc.name() == "LC_CTYPE=fr_FR;LC_NUMERIC=fr_FR;"

              "LC_TIME=fr_FR;LC_COLLATE=de_DE;LC_MONETARY=fr_FR;"

              "LC_MESSAGES=fr_FR;LC_PAPER=fr_FR;LC_NAME=fr_FR;"

              "LC_ADDRESS=fr_FR;LC_TELEPHONE=fr_FR;LC_MEASUREMENT=fr_FR;"

              "LC_IDENTIFICATION=fr_FR" );

#else

      VERIFY( loc.name() == "LC_CTYPE=fr_FR;LC_NUMERIC=fr_FR;"

              "LC_TIME=fr_FR;LC_COLLATE=de_DE;LC_MONETARY=fr_FR;"

              "LC_MESSAGES=fr_FR" );

#endif

    }

  // Changing another (C only) category.

#if _GLIBCXX_NUM_CATEGORIES

  if (!setenv("LC_IDENTIFICATION", "it_IT", 1))

    {

      locale loc = locale("");

      VERIFY( loc.name() == "LC_CTYPE=fr_FR;LC_NUMERIC=fr_FR;"

              "LC_TIME=fr_FR;LC_COLLATE=de_DE;LC_MONETARY=fr_FR;"

              "LC_MESSAGES=fr_FR;LC_PAPER=fr_FR;LC_NAME=fr_FR;"

              "LC_ADDRESS=fr_FR;LC_TELEPHONE=fr_FR;LC_MEASUREMENT=fr_FR;"

              "LC_IDENTIFICATION=it_IT" );

    }

#endif

  // Restore the environment.

  setenv("LANG", LANG_orig ? LANG_orig : "", 1);

  setenv("LC_ALL", LC_ALL_orig ? LC_ALL_orig : "", 1);

  setenv("LC_CTYPE", LC_CTYPE_orig ? LC_CTYPE_orig : "", 1);

  setenv("LC_NUMERIC", LC_NUMERIC_orig ? LC_NUMERIC_orig : "", 1);

  setenv("LC_TIME", LC_TIME_orig ? LC_TIME_orig : "", 1);

  setenv("LC_COLLATE", LC_COLLATE_orig ? LC_COLLATE_orig : "", 1);

  setenv("LC_MONETARY", LC_MONETARY_orig ? LC_MONETARY_orig : "", 1);

  setenv("LC_MESSAGES", LC_MESSAGES_orig ? LC_MESSAGES_orig : "", 1);

#if _GLIBCXX_NUM_CATEGORIES

  setenv("LC_PAPER", LC_PAPER_orig ? LC_PAPER_orig : "", 1);

  setenv("LC_NAME", LC_NAME_orig ? LC_NAME_orig : "", 1);

  setenv("LC_ADDRESS", LC_ADDRESS_orig ? LC_ADDRESS_orig : "", 1);

  setenv("LC_TELEPHONE", LC_TELEPHONE_orig ? LC_TELEPHONE_orig : "", 1);

  setenv("LC_MEASUREMENT", LC_MEASUREMENT_orig ? LC_MEASUREMENT_orig : "", 1);

  setenv("LC_IDENTIFICATION",

         LC_IDENTIFICATION_orig ? LC_IDENTIFICATION_orig : "", 1);

#endif

#endif

}

int main()

{

  test04();

  return 0;

}