ceph/src/boost/boost/parameter/aux_/pack/deduced_item.hpp

   1 // Copyright David Abrahams, Daniel Wallin 2003.
   2 // Distributed under the Boost Software License, Version 1.0.
   3 // (See accompanying file LICENSE_1_0.txt or copy at
   4 // http://www.boost.org/LICENSE_1_0.txt)
   5
   6 #ifndef BOOST_PARAMETER_AUX_PACK_DEDUCED_ITEM_HPP
   7 #define BOOST_PARAMETER_AUX_PACK_DEDUCED_ITEM_HPP
   8
   9 #include <boost/parameter/aux_/void.hpp>
  10
  11 namespace boost { namespace parameter { namespace aux {
  12
  13     // A typelist that stored deduced parameter specs.
  14     template <
  15         typename ParameterSpec
  16       , typename Tail = ::boost::parameter::void_
  17     >
  18     struct deduced_item
  19     {
  20         typedef ParameterSpec spec;
  21         typedef Tail tail;
  22     };
  23
  24     // Evaluate Tail and construct deduced_item list.
  25     template <typename Spec, typename Tail>
  26     struct make_deduced_item
  27     {
  28         typedef ::boost::parameter::aux
  29         ::deduced_item<Spec,typename Tail::type> type;
  30     };
  31 }}} // namespace boost::parameter::aux
  32
  33 #endif  // include guard
  34