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jeremybenn |
// -*- C++ -*-
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// Copyright (C) 2005, 2006, 2009 Free Software Foundation, Inc.
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//
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// This file is part of the GNU ISO C++ Library. This library is free
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// software; you can redistribute it and/or modify it under the terms
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// of the GNU General Public License as published by the Free Software
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// Foundation; either version 3, or (at your option) any later
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// version.
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// This library is distributed in the hope that it will be useful, but
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// WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// General Public License for more details.
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// You should have received a copy of the GNU General Public License
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// along with this library; see the file COPYING3. If not see
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// <http://www.gnu.org/licenses/>.
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// Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL.
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// Permission to use, copy, modify, sell, and distribute this software
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// is hereby granted without fee, provided that the above copyright
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// notice appears in all copies, and that both that copyright notice
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// and this permission notice appear in supporting documentation. None
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// of the above authors, nor IBM Haifa Research Laboratories, make any
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// representation about the suitability of this software for any
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// purpose. It is provided "as is" without express or implied
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// warranty.
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/**
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* @file erase_if_fn.hpp
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* Contains traits for a random regression test
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* for a specific container type.
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*/
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#ifndef PB_DS_REGRESSION_TEST_ERASE_IF_FN_HPP
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#define PB_DS_REGRESSION_TEST_ERASE_IF_FN_HPP
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#include <functional>
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namespace __gnu_pbds
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{
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namespace test
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{
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namespace detail
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{
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template<typename T>
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struct regression_test_erase_if_fn
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: public std::unary_function<T, bool>
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{
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private:
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typedef const T& const_reference;
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public:
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bool
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operator()(const_reference r_t) const
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{
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return (r_t.length() == 0 ||
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static_cast<size_t>(*((r_t).begin())) % 2 == 1);
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}
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};
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template<typename Hd, class Tl>
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struct regression_test_erase_if_fn<std::pair<Hd, Tl> >
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: public std::unary_function<std::pair<Hd, Tl>, bool>
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{
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private:
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typedef const std::pair<Hd, Tl>& const_reference;
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typedef regression_test_erase_if_fn<Hd> hd_erase_if_fn;
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typedef regression_test_erase_if_fn<Tl> tl_erase_if_fn;
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public:
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bool
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operator()(const_reference r_t) const
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{
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return (hd_erase_if_fn()(r_t.first) && tl_erase_if_fn()(r_t.second));
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}
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};
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} // namespace detail
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} // namespace test
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} // namespace __gnu_pbds
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#endif
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