FM / concepts

/usr/include/boost/geometry/strategies/concepts/

/usr/include/boost/geometry/strategies/concepts

Name	Size	Mode	Actions
area_concept.hpp	2256	0644	edit dl rm
centroid_concept.hpp	2062	0644	edit dl rm
convex_hull_concept.hpp	2165	0644	edit dl rm
distance_concept.hpp	6644	0644	edit dl rm
segment_intersect_concept.hpp	2044	0644	edit dl rm
simplify_concept.hpp	2786	0644	edit dl rm
within_concept.hpp	8839	0644	edit dl rm

Edit: /usr/include/boost/geometry/strategies/concepts/area_concept.hpp (2256B)

// Boost.Geometry (aka GGL, Generic Geometry Library)

// Copyright (c) 2007-2012 Barend Gehrels, Amsterdam, the Netherlands.
// Copyright (c) 2008-2012 Bruno Lalande, Paris, France.
// Copyright (c) 2009-2012 Mateusz Loskot, London, UK.
// Copyright (c) 2017 Adam Wulkiewicz, Lodz, Poland.

// This file was modified by Oracle on 2018.
// Modifications copyright (c) 2018 Oracle and/or its affiliates.
// Contributed and/or modified by Adam Wulkiewicz, on behalf of Oracle

// Parts of Boost.Geometry are redesigned from Geodan's Geographic Library
// (geolib/GGL), copyright (c) 1995-2010 Geodan, Amsterdam, the Netherlands.

// Use, modification and distribution is subject to the Boost Software License,
// Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)

#ifndef BOOST_GEOMETRY_STRATEGIES_CONCEPTS_AREA_CONCEPT_HPP
#define BOOST_GEOMETRY_STRATEGIES_CONCEPTS_AREA_CONCEPT_HPP

#include <boost/concept_check.hpp>
#include <boost/core/ignore_unused.hpp>

#include <boost/geometry/geometries/point.hpp>

namespace boost { namespace geometry { namespace concepts
{

/*!
    \brief Checks strategy for area
    \ingroup area
*/
template <typename Geometry, typename Strategy>
class AreaStrategy
{
#ifndef DOXYGEN_NO_CONCEPT_MEMBERS

// 1) must define state template,
    typedef typename Strategy::template state<Geometry> state_type;

// 2) must define result_type template,
    typedef typename Strategy::template result_type<Geometry>::type return_type;

struct check_methods
    {
        static void apply()
        {
            Strategy const* str = 0;
            state_type *st = 0;

// 3) must implement a method apply with the following signature
            typename geometry::point_type<Geometry>::type const* sp = 0;
            str->apply(*sp, *sp, *st);

// 4) must implement a static method result with the following signature
            return_type r = str->result(*st);

boost::ignore_unused(r, str);
        }
    };

public :
    BOOST_CONCEPT_USAGE(AreaStrategy)
    {
        check_methods::apply();
    }

#endif
};

}}} // namespace boost::geometry::concepts

#endif // BOOST_GEOMETRY_STRATEGIES_CONCEPTS_AREA_CONCEPT_HPP

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