ceph/src/boost/libs/geometry/include/boost/geometry/index/detail/utilities.hpp

   1 // Boost.Geometry Index
   2 //
   3 // Copyright (c) 2011-2013 Adam Wulkiewicz, Lodz, Poland.
   4 //
   5 // Use, modification and distribution is subject to the Boost Software License,
   6 // Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
   7 // http://www.boost.org/LICENSE_1_0.txt)
   8
   9 #include <boost/swap.hpp>
  10 //#include <boost/type_traits/is_empty.hpp>
  11
  12 #ifndef BOOST_GEOMETRY_INDEX_DETAIL_UTILITIES_HPP
  13 #define BOOST_GEOMETRY_INDEX_DETAIL_UTILITIES_HPP
  14
  15 namespace boost { namespace geometry { namespace index { namespace detail {
  16
  17 template<class T>
  18 static inline void assign_cond(T & l, T const& r, boost::mpl::bool_<true> const&)
  19 {
  20     l = r;
  21 }
  22
  23 template<class T>
  24 static inline void assign_cond(T &, T const&, boost::mpl::bool_<false> const&) {}
  25
  26 template<class T>
  27 static inline void move_cond(T & l, T & r, boost::mpl::bool_<true> const&)
  28 {
  29     l = ::boost::move(r);
  30 }
  31
  32 template<class T>
  33 static inline void move_cond(T &, T &, boost::mpl::bool_<false> const&) {}
  34
  35 template <typename T> inline
  36 void swap_cond(T & l, T & r, boost::mpl::bool_<true> const&)
  37 {
  38     ::boost::swap(l, r);
  39 }
  40
  41 template <typename T> inline
  42 void swap_cond(T &, T &, boost::mpl::bool_<false> const&) {}
  43
  44 }}}} // namespace boost::geometry::index::detail
  45
  46 #endif // BOOST_GEOMETRY_INDEX_DETAIL_UTILITIES_HPP