Subversion Repositories openrisc_me

// -*- C++ -*-

// Copyright (C) 2005, 2006, 2009 Free Software Foundation, Inc.

//

// 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/>.

// Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL.

// Permission to use, copy, modify, sell, and distribute this software

// is hereby granted without fee, provided that the above copyright

// notice appears in all copies, and that both that copyright notice

// and this permission notice appear in supporting documentation. None

// of the above authors, nor IBM Haifa Research Laboratories, make any

// representation about the suitability of this software for any

// purpose. It is provided "as is" without express or implied

// warranty.

/**

 * @file tree_split_join_test.hpp

 * Contains a test for splitting and joining trees

 */

#ifndef PB_DS_TREE_SPLIT_JOIN_TEST_HPP

#define PB_DS_TREE_SPLIT_JOIN_TEST_HPP

#include <performance/time/timing_test_base.hpp>

#include <performance/io/xml_formatter.hpp>

#include <common_type/assoc/string_form.hpp>

#include <iterator>

namespace __gnu_pbds

{

  namespace test

  {

    namespace detail

    {

      template<typename Cntnr, bool Support_Split_Join>

      class split_join_functor

      {

      public:

        split_join_functor(Cntnr& r_container) : m_r_container(r_container)

        { }

        void

        operator()(std::size_t resolution)

        {

          for (std::size_t i = 0; i < resolution; ++i)

            {

              typename Cntnr::const_iterator mid_it = m_r_container.begin();

              std::advance(mid_it, m_r_container.size() / 2);

              Cntnr other;

              m_r_container.split(*mid_it, other);

              m_r_container.join(other);

            }

        }

      private:

        Cntnr& m_r_container;

      };

      template<typename Cntnr>

      class split_join_functor<Cntnr, false>

      {

      public:

        split_join_functor(Cntnr& r_container) : m_r_container(r_container)

        { }

        void

        operator()(std::size_t resolution)

        {

          for (std::size_t i = 0; i < resolution; ++i)

            {

              typename Cntnr::iterator mid_it = m_r_container.begin();

              std::advance(mid_it, m_r_container.size() / 2);

              Cntnr other(mid_it, m_r_container.end());

              m_r_container.erase(mid_it, m_r_container.end());

              m_r_container.insert(other.begin(), other.end());

              other.clear();

            }

        }

      private:

        Cntnr& m_r_container;

      };

    } // namespace detail

    template<bool Support_Split_Join>

    class tree_split_join_test : private __gnu_pbds::test::detail::timing_test_base

    {

    public:

      tree_split_join_test(size_t vn, size_t vs, size_t vm);

      template<typename Cntnr>

      void

      operator()(Cntnr);

    private:

      tree_split_join_test(const tree_split_join_test& );

    private:

      const size_t m_vn;

      const size_t m_vs;

      const size_t m_vm;

    };

    template<bool Support_Split_Join>

    tree_split_join_test<Support_Split_Join>::

    tree_split_join_test(size_t vn, size_t vs, size_t vm) :

      m_vn(vn),

      m_vs(vs),

      m_vm(vm)

    { }

    template<bool Support_Split_Join>

    template<typename Cntnr>

    void

    tree_split_join_test<Support_Split_Join>::

    operator()(Cntnr)

    {

      typedef xml_result_set_performance_formatter formatter_type;

      formatter_type res_set_fmt(string_form<Cntnr>::name(),

                                 string_form<Cntnr>::desc());

      for (size_t v = m_vn; v < m_vm; v += m_vs)

        {

          Cntnr cntnr;

          for (size_t ins = 0; ins < v; ++ ins)

            cntnr.insert((typename Cntnr::value_type)ins);

          __gnu_pbds::test::detail::split_join_functor<Cntnr, Support_Split_Join>

            fn(cntnr);

          const double res =

            __gnu_pbds::test::detail::timing_test_base::operator()(fn);

          res_set_fmt.add_res(v, res);

        }

    }

  } // namespace test

} // namespace __gnu_pbds

#endif