ceph/src/boost/libs/icl/include/boost/icl/type_traits/has_set_semantics.hpp

   1 /*-----------------------------------------------------------------------------+
   2 Copyright (c) 2008-2009: Joachim Faulhaber
   3 +------------------------------------------------------------------------------+
   4    Distributed under the Boost Software License, Version 1.0.
   5       (See accompanying file LICENCE.txt or copy at
   6            http://www.boost.org/LICENSE_1_0.txt)
   7 +-----------------------------------------------------------------------------*/
   8 #ifndef BOOST_ICL_TYPE_TRAITS_HAS_SET_SEMANTICS_HPP_JOFA_100829
   9 #define BOOST_ICL_TYPE_TRAITS_HAS_SET_SEMANTICS_HPP_JOFA_100829
  10
  11 #include <boost/mpl/or.hpp>
  12 #include <boost/mpl/and.hpp>
  13 #include <boost/icl/type_traits/is_set.hpp>
  14 #include <boost/icl/type_traits/is_map.hpp>
  15 #include <boost/icl/type_traits/codomain_type_of.hpp>
  16
  17 namespace boost{ namespace icl
  18 {
  19     template <class Type> struct has_set_semantics
  20     {
  21         typedef has_set_semantics<Type> type;
  22         BOOST_STATIC_CONSTANT(bool,
  23             value = (mpl::or_< is_set<Type>
  24                              , mpl::and_< is_map<Type>
  25                                         , has_set_semantics
  26                                           <typename codomain_type_of<Type>::type >
  27                                         >
  28                              >::value));
  29     };
  30
  31 }} // namespace boost icl
  32
  33 #endif
  34
  35