152 lines
3.9 KiB
C++
152 lines
3.9 KiB
C++
// Boost.Geometry (aka GGL, Generic Geometry Library)
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// Unit Test
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// Copyright (c) 2010-2012 Barend Gehrels, 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 GEOMETRY_TEST_TEST_GEOMETRIES_WRAPPED_BOOST_ARRAY_HPP
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#define GEOMETRY_TEST_TEST_GEOMETRIES_WRAPPED_BOOST_ARRAY_HPP
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#include <cstddef>
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#include <boost/array.hpp>
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#include <boost/range.hpp>
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#include <boost/geometry/core/mutable_range.hpp>
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#include <boost/geometry/core/tag.hpp>
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#include <boost/geometry/core/tags.hpp>
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namespace test
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{
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template <typename Point, std::size_t Count>
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struct wrapped_boost_array
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{
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inline wrapped_boost_array() : size(0) {}
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boost::array<Point, Count> array;
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std::size_t size;
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};
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} // namespace test
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// 1a: adapt to Boost.Range
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namespace boost
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{
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using namespace test;
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template <typename Point, std::size_t Count>
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struct range_mutable_iterator<wrapped_boost_array<Point, Count> >
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: public range_mutable_iterator<boost::array<Point, Count> >
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{};
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template <typename Point, std::size_t Count>
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struct range_const_iterator<wrapped_boost_array<Point, Count> >
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: public range_const_iterator<boost::array<Point, Count> >
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{};
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} // namespace 'boost'
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// 1b) adapt to Boost.Range with ADP
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namespace test
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{
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template <typename Point, std::size_t Count>
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inline typename boost::range_iterator
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<
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wrapped_boost_array<Point, Count>
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>::type range_begin(wrapped_boost_array<Point, Count>& ar)
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{
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return ar.array.begin();
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}
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template <typename Point, std::size_t Count>
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inline typename boost::range_iterator
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<
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wrapped_boost_array<Point, Count> const
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>::type range_begin(wrapped_boost_array<Point, Count> const& ar)
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{
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return ar.array.begin();
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}
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template <typename Point, std::size_t Count>
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inline typename boost::range_iterator
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<
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wrapped_boost_array<Point, Count>
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>::type range_end(wrapped_boost_array<Point, Count>& ar)
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{
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typename boost::range_iterator
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<
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wrapped_boost_array<Point, Count>
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>::type it = ar.array.begin();
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return it + ar.size;
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}
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template <typename Point, std::size_t Count>
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inline typename boost::range_iterator
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<
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wrapped_boost_array<Point, Count> const
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>::type range_end(wrapped_boost_array<Point, Count> const& ar)
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{
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typename boost::range_iterator
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<
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wrapped_boost_array<Point, Count> const
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>::type it = ar.array.begin();
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return it + ar.size;
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}
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}
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// 2: adapt to Boost.Geometry
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namespace boost { namespace geometry { namespace traits
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{
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template <typename Point, std::size_t Count>
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struct tag< wrapped_boost_array<Point, Count> >
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{
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typedef linestring_tag type;
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};
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template <typename Point, std::size_t Count>
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struct clear< wrapped_boost_array<Point, Count> >
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{
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static inline void apply(wrapped_boost_array<Point, Count>& ar)
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{
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ar.size = 0;
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}
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};
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template <typename Point, std::size_t Count>
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struct push_back< wrapped_boost_array<Point, Count> >
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{
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static inline void apply(wrapped_boost_array<Point, Count>& ar, Point const& point)
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{
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// BOOST_ASSERT((ar.size < Count));
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ar.array[ar.size++] = point;
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}
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};
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template <typename Point, std::size_t Count>
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struct resize< wrapped_boost_array<Point, Count> >
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{
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static inline void apply(wrapped_boost_array<Point, Count>& ar, std::size_t new_size)
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{
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BOOST_ASSERT(new_size < Count);
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ar.size = new_size;
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}
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};
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}}} // namespace bg::traits
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#endif // GEOMETRY_TEST_TEST_GEOMETRIES_WRAPPED_BOOST_ARRAY_HPP
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