ceph/src/boost/boost/metaparse/v1/impl/one_of.hpp

   1 #ifndef BOOST_METAPARSE_V1_IMPL_ONE_OF_HPP
   2 #define BOOST_METAPARSE_V1_IMPL_ONE_OF_HPP
   3
   4 // Copyright Abel Sinkovics (abel@sinkovics.hu)  2013.
   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/error/none_of_the_expected_cases_found.hpp>
  10 #include <boost/metaparse/v1/fail.hpp>
  11
  12 #include <boost/metaparse/v1/impl/one_of_fwd_op.hpp>
  13
  14 #include <boost/mpl/fold.hpp>
  15
  16 namespace boost
  17 {
  18   namespace metaparse
  19   {
  20     namespace v1
  21     {
  22       namespace impl
  23       {
  24         template <class Parsers>
  25         struct one_of
  26         {
  27           typedef one_of type;
  28
  29           template <class S, class Pos>
  30           struct apply :
  31             boost::mpl::fold<
  32               Parsers,
  33               fail<error::none_of_the_expected_cases_found>::apply<S, Pos>,
  34               one_of_fwd_op<S, Pos>
  35             >::type
  36           {};
  37         };
  38       }
  39     }
  40   }
  41 }
  42
  43 #endif
  44