ceph/src/boost/boost/geometry/strategies/index.hpp

   1 // Boost.Geometry Index
   2 //
   3 // R-tree strategies
   4 //
   5 // Copyright (c) 2019-2020, Oracle and/or its affiliates.
   6 // Contributed and/or modified by Adam Wulkiewicz, on behalf of Oracle
   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_STRATEGIES_INDEX_HPP
  13 #define BOOST_GEOMETRY_STRATEGIES_INDEX_HPP
  14
  15
  16 #include <boost/geometry/core/cs.hpp>
  17 #include <boost/geometry/core/static_assert.hpp>
  18 #include <boost/geometry/strategies/default_strategy.hpp>
  19
  20
  21 namespace boost { namespace geometry { namespace strategy { namespace index
  22 {
  23
  24 namespace services
  25 {
  26
  27 template
  28 <
  29     typename Geometry,
  30     typename CSTag = typename geometry::cs_tag<Geometry>::type
  31 >
  32 struct default_strategy
  33 {
  34     /*BOOST_GEOMETRY_STATIC_ASSERT_FALSE(
  35         "Not implemented for this type.",
  36         Geometry);*/
  37
  38     typedef geometry::default_strategy type;
  39 };
  40
  41
  42 // TEMP
  43 // Utility to get index strategy from other strategy
  44 // In the final version this utility will probably replaced with some other mechanism
  45 // The issue is cross-dependencies between strategies
  46 template <typename Strategy>
  47 struct from_strategy
  48 {
  49     /*BOOST_GEOMETRY_STATIC_ASSERT_FALSE(
  50         "Not implemented for this type.",
  51         Strategy);*/
  52
  53     typedef geometry::default_strategy type;
  54
  55     static inline type get(Strategy const&)
  56     {
  57         return type();
  58     }
  59 };
  60
  61
  62 } // namespace services
  63
  64
  65 }}}} // namespace boost::geometry::strategy::index
  66
  67 #endif // BOOST_GEOMETRY_STRATEGIES_INDEX_HPP