ceph/src/boost/libs/fusion/include/boost/fusion/support/deduce_sequence.hpp

   1 /*=============================================================================
   2     Copyright (c) 2007 Tobias Schwinger
   3
   4     Use modification and distribution are subject to the Boost Software
   5     License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
   6     http://www.boost.org/LICENSE_1_0.txt).
   7 ==============================================================================*/
   8
   9 #if !defined(BOOST_FUSION_SUPPORT_DEDUCE_SEQUENCE_HPP_INCLUDED)
  10 #define BOOST_FUSION_SUPPORT_DEDUCE_SEQUENCE_HPP_INCLUDED
  11
  12 #include <boost/fusion/support/config.hpp>
  13 #include <boost/fusion/support/deduce.hpp>
  14 #include <boost/fusion/container/vector/convert.hpp>
  15 #include <boost/fusion/view/transform_view.hpp>
  16 #include <boost/config.hpp>
  17
  18
  19 namespace boost { namespace fusion { namespace traits
  20 {
  21     template <class Sequence> struct deduce_sequence;
  22
  23     namespace detail
  24     {
  25         struct deducer
  26         {
  27             template <typename Sig>
  28             struct result;
  29
  30             template <class Self, typename T>
  31             struct result< Self(T) >
  32                 : fusion::traits::deduce<T>
  33             { };
  34
  35             // never called, but needed for decltype-based result_of (C++0x)
  36 #ifndef BOOST_NO_CXX11_RVALUE_REFERENCES
  37             template <typename T>
  38             BOOST_FUSION_GPU_ENABLED
  39             typename result< deducer(T) >::type
  40             operator()(T&&) const;
  41 #endif
  42         };
  43     }
  44
  45     template <class Sequence>
  46     struct deduce_sequence
  47         : result_of::as_vector<
  48             fusion::transform_view<Sequence, detail::deducer> >
  49     { };
  50
  51 }}}
  52
  53 #endif
  54