ceph/src/boost/libs/metaparse/include/boost/metaparse/v1/foldr1.hpp

   1 #ifndef BOOST_METAPARSE_V1_FOLDR1_HPP
   2 #define BOOST_METAPARSE_V1_FOLDR1_HPP
   3
   4 // Copyright Abel Sinkovics (abel@sinkovics.hu)  2011.
   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/foldr.hpp>
  10
  11 #include <boost/mpl/if.hpp>
  12
  13 namespace boost
  14 {
  15   namespace metaparse
  16   {
  17     namespace v1
  18     {
  19       template <class P, class State, class BackwardOp>
  20       struct foldr1
  21       {
  22         typedef foldr1 type;
  23
  24         template <class S, class Pos>
  25         struct apply :
  26           boost::mpl::if_<
  27             is_error<typename P::template apply<S, Pos> >,
  28             P,
  29             foldr<P, State, BackwardOp>
  30           >::type::template apply<S, Pos>
  31         {};
  32       };
  33     }
  34   }
  35 }
  36
  37 #endif
  38