ceph/src/boost/boost/metaparse/v1/cpp11/impl/eval_later_result.hpp

   1 #ifndef BOOST_METAPARSE_V1_CPP11_IMPL_EVAL_LATER_RESULT_HPP
   2 #define BOOST_METAPARSE_V1_CPP11_IMPL_EVAL_LATER_RESULT_HPP
   3
   4 // Copyright Abel Sinkovics (abel@sinkovics.hu)  2017.
   5 // Distributed under the Boost Software License, Version 1.0.
   6 //    (See accompanying file LICENSE_1_0.txt or copy at
   7 //          http://www.boost.org/LICENSE_1_0.txt)
   8
   9 #include <boost/metaparse/v1/get_position.hpp>
  10
  11 #include <boost/mpl/eval_if.hpp>
  12 #include <boost/mpl/less.hpp>
  13
  14 namespace boost
  15 {
  16   namespace metaparse
  17   {
  18     namespace v1
  19     {
  20       namespace impl
  21       {
  22         template <class R1, class R2>
  23         struct eval_later_result :
  24           boost::mpl::eval_if<
  25             typename boost::mpl::less<
  26               typename get_position<R2>::type,
  27               typename get_position<R1>::type
  28             >::type,
  29             R1,
  30             R2
  31           >
  32         {};
  33       }
  34     }
  35   }
  36 }
  37
  38 #endif
  39