ceph/src/boost/boost/geometry/policies/robustness/no_rescale_policy.hpp

   1 // Boost.Geometry (aka GGL, Generic Geometry Library)
   2
   3 // Copyright (c) 2013 Barend Gehrels, Amsterdam, the Netherlands.
   4 // Copyright (c) 2013 Bruno Lalande, Paris, France.
   5 // Copyright (c) 2013 Mateusz Loskot, London, UK.
   6 // Copyright (c) 2013 Adam Wulkiewicz, Lodz, Poland.
   7
   8 // Use, modification and distribution is subject to the Boost Software License,
   9 // Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
  10 // http://www.boost.org/LICENSE_1_0.txt)
  11
  12 #ifndef BOOST_GEOMETRY_POLICIES_ROBUSTNESS_NO_RESCALE_POLICY_HPP
  13 #define BOOST_GEOMETRY_POLICIES_ROBUSTNESS_NO_RESCALE_POLICY_HPP
  14
  15 #include <stddef.h>
  16
  17 #include <boost/geometry/core/coordinate_type.hpp>
  18 #include <boost/geometry/policies/robustness/robust_point_type.hpp>
  19 #include <boost/geometry/policies/robustness/segment_ratio.hpp>
  20
  21 namespace boost { namespace geometry
  22 {
  23
  24 #ifndef DOXYGEN_NO_DETAIL
  25 namespace detail
  26 {
  27
  28 // Redudant later.
  29 struct no_rescale_policy
  30 {
  31     static bool const enabled = false;
  32
  33     // We don't rescale but return the reference of the input
  34     template <std::size_t Dimension, typename Value>
  35     inline Value const& apply(Value const& value) const
  36     {
  37         return value;
  38     }
  39 };
  40
  41 } // namespace detail
  42 #endif
  43
  44
  45 // Implement meta-functions for this policy
  46 template <typename Point>
  47 struct robust_point_type<Point, detail::no_rescale_policy>
  48 {
  49     // The point itself
  50     typedef Point type;
  51 };
  52
  53 }} // namespace boost::geometry
  54
  55 #endif // BOOST_GEOMETRY_POLICIES_ROBUSTNESS_NO_RESCALE_POLICY_HPP