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// -*- C++ -*-
// Copyright (C) 2005-2018 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
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