v1/cpp98/sequence.hpp

0001 #ifndef BOOST_METAPARSE_V1_CPP98_SEQUENCE_HPP
0002 #define BOOST_METAPARSE_V1_CPP98_SEQUENCE_HPP
0003
0004 // Copyright Abel Sinkovics (abel@sinkovics.hu)  2009 - 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/cpp98/impl/sequence.hpp>
0010
0011 #include <boost/preprocessor/comma_if.hpp>
0012 #include <boost/preprocessor/repetition/repeat_from_to.hpp>
0013 #include <boost/preprocessor/repetition/enum.hpp>
0014 #include <boost/preprocessor/repetition/enum_params.hpp>
0015 #include <boost/preprocessor/repetition/enum_params_with_a_default.hpp>
0016 #include <boost/preprocessor/arithmetic/sub.hpp>
0017 #include <boost/preprocessor/cat.hpp>
0018 #include <boost/preprocessor/tuple/eat.hpp>
0019
0020 namespace boost
0021 {
0022   namespace metaparse
0023   {
0024     namespace v1
0025     {
0026       template <
0027         BOOST_PP_ENUM_PARAMS_WITH_A_DEFAULT(
0028           BOOST_METAPARSE_LIMIT_SEQUENCE_SIZE,
0029           class P,
0030           boost::mpl::na
0031         )
0032       >
0033       struct sequence;
0034
0035       #ifdef BOOST_METAPARSE_SEQUENCE_N
0036       #  error BOOST_METAPARSE_SEQUENCE_N already defined
0037       #endif
0038       #define BOOST_METAPARSE_SEQUENCE_N(z, n, unused) \
0039         template <BOOST_PP_ENUM_PARAMS(n, class P)> \
0040         struct sequence< \
0041           BOOST_PP_ENUM_PARAMS(n, P) \
0042           BOOST_PP_COMMA_IF(n) \
0043           BOOST_PP_ENUM( \
0044             BOOST_PP_SUB(BOOST_METAPARSE_LIMIT_SEQUENCE_SIZE, n), \
0045             boost::mpl::na BOOST_PP_TUPLE_EAT(3), \
0046             ~ \
0047           ) \
0048         > : impl::BOOST_PP_CAT(sequence, n)<BOOST_PP_ENUM_PARAMS(n, P)> \
0049         {};
0050
0051       BOOST_PP_REPEAT_FROM_TO(
0052         1,
0053         BOOST_METAPARSE_LIMIT_SEQUENCE_SIZE,
0054         BOOST_METAPARSE_SEQUENCE_N,
0055         ~
0056       )
0057
0058       #undef BOOST_METAPARSE_SEQUENCE_N
0059     }
0060   }
0061 }
0062
0063 #endif
0064