v1/cpp98/nth_of.hpp

0001 #ifndef BOOST_METAPARSE_V1_CPP98_NTH_OF_HPP
0002 #define BOOST_METAPARSE_V1_CPP98_NTH_OF_HPP
0003
0004 // Copyright Abel Sinkovics (abel@sinkovics.hu)  2010.
0005 // Distributed under the Boost Software License, Version 1.0.
0006 //    (See accompanying file LICENSE_1_0.txt or copy at
0007 //          http://www.boost.org/LICENSE_1_0.txt)
0008
0009 #include <boost/metaparse/v1/nth_of_c.hpp>
0010 #include <boost/metaparse/limit_sequence_size.hpp>
0011
0012 #include <boost/preprocessor/repetition/enum_params.hpp>
0013 #include <boost/preprocessor/repetition/enum_params_with_a_default.hpp>
0014
0015 namespace boost
0016 {
0017   namespace metaparse
0018   {
0019     namespace v1
0020     {
0021       template <
0022         class K,
0023         BOOST_PP_ENUM_PARAMS_WITH_A_DEFAULT(
0024           BOOST_METAPARSE_LIMIT_SEQUENCE_SIZE,
0025           class P,
0026           boost::mpl::na
0027         )
0028       >
0029       struct nth_of :
0030         nth_of_c<
0031           K::type::value,
0032           BOOST_PP_ENUM_PARAMS(BOOST_METAPARSE_LIMIT_SEQUENCE_SIZE, P)
0033         >
0034       {};
0035     }
0036   }
0037 }
0038
0039 #endif
0040