Added boost header
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test/external/boost/geometry/strategies/concepts/simplify_concept.hpp
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109
test/external/boost/geometry/strategies/concepts/simplify_concept.hpp
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// Boost.Geometry (aka GGL, Generic Geometry Library)
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// Copyright (c) 2007-2011 Barend Gehrels, Amsterdam, the Netherlands.
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// Copyright (c) 2008-2011 Bruno Lalande, Paris, France.
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// Copyright (c) 2009-2011 Mateusz Loskot, London, UK.
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// Parts of Boost.Geometry are redesigned from Geodan's Geographic Library
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// (geolib/GGL), copyright (c) 1995-2010 Geodan, Amsterdam, the Netherlands.
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// Use, modification and distribution is subject to the Boost Software License,
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// Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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#ifndef BOOST_GEOMETRY_STRATEGIES_CONCEPTS_SIMPLIFY_CONCEPT_HPP
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#define BOOST_GEOMETRY_STRATEGIES_CONCEPTS_SIMPLIFY_CONCEPT_HPP
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#include <vector>
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#include <iterator>
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#include <boost/concept_check.hpp>
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#include <boost/geometry/strategies/concepts/distance_concept.hpp>
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namespace boost { namespace geometry { namespace concept
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{
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/*!
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\brief Checks strategy for simplify
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\ingroup simplify
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*/
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template <typename Strategy>
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struct SimplifyStrategy
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{
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#ifndef DOXYGEN_NO_CONCEPT_MEMBERS
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private :
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// 1) must define distance_strategy_type,
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// defining point-segment distance strategy (to be checked)
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typedef typename Strategy::distance_strategy_type ds_type;
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struct checker
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{
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template <typename ApplyMethod>
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static void apply(ApplyMethod const&)
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{
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namespace ft = boost::function_types;
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typedef typename ft::parameter_types
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<
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ApplyMethod
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>::type parameter_types;
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typedef typename boost::mpl::if_
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<
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ft::is_member_function_pointer<ApplyMethod>,
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boost::mpl::int_<1>,
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boost::mpl::int_<0>
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>::type base_index;
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// 1: inspect and define both arguments of apply
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typedef typename boost::remove_const
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<
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typename boost::remove_reference
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<
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typename boost::mpl::at
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<
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parameter_types,
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base_index
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>::type
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>::type
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>::type point_type;
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BOOST_CONCEPT_ASSERT
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(
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(concept::PointSegmentDistanceStrategy<ds_type>)
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);
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Strategy *str;
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std::vector<point_type> const* v1;
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std::vector<point_type> * v2;
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// 2) must implement method apply with arguments
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// - Range
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// - OutputIterator
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// - floating point value
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str->apply(*v1, std::back_inserter(*v2), 1.0);
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boost::ignore_unused_variable_warning(str);
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}
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};
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public :
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BOOST_CONCEPT_USAGE(SimplifyStrategy)
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{
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checker::apply(&ds_type::apply);
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}
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#endif
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};
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}}} // namespace boost::geometry::concept
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#endif // BOOST_GEOMETRY_STRATEGIES_CONCEPTS_SIMPLIFY_CONCEPT_HPP
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