ceph/src/boost/libs/geometry/include/boost/geometry/policies/robustness/robust_type.hpp

   1 // Boost.Geometry (aka GGL, Generic Geometry Library)
   2
   3 // Copyright (c) 2014 Barend Gehrels, Amsterdam, the Netherlands.
   4 // Copyright (c) 2014 Bruno Lalande, Paris, France.
   5 // Copyright (c) 2014 Mateusz Loskot, London, UK.
   6 // Copyright (c) 2014 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_ROBUST_TYPE_HPP
  13 #define BOOST_GEOMETRY_POLICIES_ROBUSTNESS_ROBUST_TYPE_HPP
  14
  15
  16 #include <boost/config.hpp>
  17 #include <boost/type_traits/is_floating_point.hpp>
  18
  19
  20 namespace boost { namespace geometry
  21 {
  22
  23 #ifndef DOXYGEN_NO_DETAIL
  24
  25 namespace detail_dispatch
  26 {
  27
  28 template <typename CoordinateType, typename IsFloatingPoint>
  29 struct robust_type
  30 {
  31 };
  32
  33 template <typename CoordinateType>
  34 struct robust_type<CoordinateType, boost::false_type>
  35 {
  36     typedef CoordinateType type;
  37 };
  38
  39 template <typename CoordinateType>
  40 struct robust_type<CoordinateType, boost::true_type>
  41 {
  42     typedef boost::long_long_type type;
  43 };
  44
  45 } // namespace detail_dispatch
  46
  47 namespace detail
  48 {
  49
  50 template <typename CoordinateType>
  51 struct robust_type
  52 {
  53     typedef typename detail_dispatch::robust_type
  54         <
  55             CoordinateType,
  56             typename boost::is_floating_point<CoordinateType>::type
  57         >::type type;
  58 };
  59
  60 } // namespace detail
  61 #endif // DOXYGEN_NO_DETAIL
  62
  63
  64 }} // namespace boost::geometry
  65
  66
  67 #endif // BOOST_GEOMETRY_POLICIES_ROBUSTNESS_ROBUST_TYPE_HPP