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

// Copyright (C) 2000, 2002, 2003, 2009 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 3, 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 COPYING3.  If not see

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

// 22.1.1.5 locale static members [lib.locale.statics]

#include <cwchar> // for mbstate_t

#include <locale>

#include <testsuite_hooks.h>

// Static counter for use in checking ctors/dtors.

static std::size_t counter;

class surf : public std::locale::facet

{

public:

  static std::locale::id                id;

  surf(size_t refs = 0): std::locale::facet(refs) { ++counter; }

  ~surf() { --counter; }

};

std::locale::id surf::id;

typedef surf facet_type;

// Verify lifetimes of global objects.

void test03()

{

  using namespace std;

  bool test __attribute__((unused)) = true;

  string name;

  locale global_orig;

  // 1: Destroyed when out of scope.

  {

    {

      {

        VERIFY( counter == 0 );

        {

          locale loc01(locale::classic(), new facet_type);

          VERIFY( counter == 1 );

          global_orig = locale::global(loc01);

          name = loc01.name();

        }

        VERIFY( counter == 1 );

        locale loc02 = locale();

        // Weak, but it's something...

        VERIFY( loc02.name() == name );

      }

      VERIFY( counter == 1 );

      // NB: loc03 should be a copy of the previous global locale.

      locale loc03 = locale::global(global_orig);

      VERIFY( counter == 1 );

      VERIFY( loc03.name() == name );

    }

    VERIFY( counter == 0 );

    locale loc04 = locale();

    VERIFY( loc04 == global_orig );

  }

  // 2: Not destroyed when out of scope, deliberately leaked.

  {

    {

      {

        VERIFY( counter == 0 );

        {

          locale loc01(locale::classic(), new facet_type(1));

          VERIFY( counter == 1 );

          global_orig = locale::global(loc01);

          name = loc01.name();

        }

        VERIFY( counter == 1 );

        locale loc02 = locale();

        // Weak, but it's something...

        VERIFY( loc02.name() == name );

      }

      VERIFY( counter == 1 );

      // NB: loc03 should be a copy of the previous global locale.

      locale loc03 = locale::global(global_orig);

      VERIFY( counter == 1 );

      VERIFY( loc03.name() == name );

    }

    VERIFY( counter == 1 );

    locale loc04 = locale();

    VERIFY( loc04 == global_orig );

  }

  VERIFY( counter == 1 );

  // Restore global settings.

  locale::global(global_orig);

}

int main ()

{

  test03();

  return 0;

}