liuxiaolong
2021-07-20 58d904a328c0d849769b483e901a0be9426b8209
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// Boost.Geometry (aka GGL, Generic Geometry Library)
 
// Copyright (c) 2015, Oracle and/or its affiliates.
 
// Contributed and/or modified by Menelaos Karavelas, on behalf of Oracle
 
// Licensed under the Boost Software License version 1.0.
// http://www.boost.org/users/license.html
 
#ifndef BOOST_GEOMETRY_VIEWS_DETAIL_BOUNDARY_VIEW_INTERFACE_HPP
#define BOOST_GEOMETRY_VIEWS_DETAIL_BOUNDARY_VIEW_INTERFACE_HPP
 
#include <boost/geometry/core/tag.hpp>
#include <boost/geometry/algorithms/not_implemented.hpp>
 
 
namespace boost { namespace geometry
{
 
 
#ifndef DOXYGEN_NO_DISPATCH
namespace detail_dispatch
{
 
template <typename Geometry, typename Tag = typename tag<Geometry>::type>
struct boundary_view
    : not_implemented<Tag>
{};
 
} // namespace detail_dispatch
#endif // DOXYGEN_NO_DISPATCH
 
 
#ifndef DOXYGEN_NO_DETAIL
namespace detail
{
 
template <typename Geometry>
struct boundary_view
    : detail_dispatch::boundary_view<Geometry>
{
    explicit boundary_view(Geometry& geometry)
        : detail_dispatch::boundary_view<Geometry>(geometry)
    {}
};
 
} // namespace detail
#endif // DOXYGEN_NO_DETAIL
 
 
#ifndef DOXYGEN_NO_TRAITS_SPECIALIZATIONS
namespace traits
{
 
template <typename Geometry>
struct tag< geometry::detail::boundary_view<Geometry> >
{
    typedef typename detail_dispatch::boundary_view
        <
            Geometry
        >::tag_type type;
};
 
} // namespace traits
#endif // DOXYGEN_NO_TRAITS_SPECIALIZATIONS
 
 
}} // namespace boost::geometry
 
#endif // BOOST_GEOMETRY_VIEWS_DETAIL_BOUNDARY_VIEW_INTERFACE_HPP