Current File : //usr/include/boost/geometry/policies/robustness/segment_ratio_type.hpp
// Boost.Geometry (aka GGL, Generic Geometry Library)
// Copyright (c) 2013 Barend Gehrels, Amsterdam, the Netherlands.
// Copyright (c) 2013 Bruno Lalande, Paris, France.
// Copyright (c) 2013 Mateusz Loskot, London, UK.
// Copyright (c) 2013 Adam Wulkiewicz, Lodz, Poland.
// This file was modified by Oracle on 2020.
// Modifications copyright (c) 2020 Oracle and/or its affiliates.
// Contributed and/or modified by Adam Wulkiewicz, on behalf of Oracle
// 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_POLICIES_ROBUSTNESS_SEGMENT_RATIO_TYPE_HPP
#define BOOST_GEOMETRY_POLICIES_ROBUSTNESS_SEGMENT_RATIO_TYPE_HPP
#include <type_traits>
#include <boost/config.hpp>
#include <boost/geometry/core/coordinate_type.hpp>
#include <boost/geometry/policies/robustness/rescale_policy_tags.hpp>
namespace boost { namespace geometry { namespace detail
{
// Temporary meta-function to access segment-ratio for a policy
template <typename Point, typename Policy>
struct segment_ratio_type
{
// Type in segment ratio is either the coordinate type, or for
// deprecated robust point types it is a long_long type
typedef std::conditional_t
<
std::is_same
<
typename rescale_policy_type<Policy>::type,
no_rescale_policy_tag
>::value,
typename geometry::coordinate_type<Point>::type,
boost::long_long_type
> coordinate_type;
// Define segment ratio based on the coordinate type
typedef geometry::segment_ratio<coordinate_type> type;
};
}}} // namespace boost::geometry::deatil
#endif // BOOST_GEOMETRY_POLICIES_ROBUSTNESS_SEGMENT_RATIO_TYPE_HPP
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