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85 lines
3.0 KiB
85 lines
3.0 KiB
#if !defined(BOOST_PROTO_DONT_USE_PREPROCESSED_FILES) |
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#include <boost/proto/detail/preprocessed/args.hpp> |
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#elif !defined(BOOST_PP_IS_ITERATING) |
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/// INTERNAL ONLY |
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/// |
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#define BOOST_PROTO_DEFINE_CHILD_N(Z, N, DATA) \ |
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typedef BOOST_PP_CAT(Arg, N) BOOST_PP_CAT(child, N); \ |
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/**< INTERNAL ONLY */ |
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/// INTERNAL ONLY |
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/// |
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#define BOOST_PROTO_DEFINE_VOID_N(z, n, data) \ |
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typedef mpl::void_ BOOST_PP_CAT(child, n); \ |
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/**< INTERNAL ONLY */ |
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#if defined(__WAVE__) && defined(BOOST_PROTO_CREATE_PREPROCESSED_FILES) |
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#pragma wave option(preserve: 2, line: 0, output: "preprocessed/args.hpp") |
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#endif |
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/////////////////////////////////////////////////////////////////////////////// |
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/// \file args.hpp |
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/// Contains definition of \c term\<\>, \c list1\<\>, \c list2\<\>, ... |
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/// class templates. |
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// |
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// Copyright 2008 Eric Niebler. Distributed under the Boost |
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// Software License, Version 1.0. (See accompanying file |
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// LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) |
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#if defined(__WAVE__) && defined(BOOST_PROTO_CREATE_PREPROCESSED_FILES) |
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#pragma wave option(preserve: 1) |
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#endif |
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/// \brief A type sequence, for use as the 2nd parameter to the \c expr\<\> class template. |
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/// |
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/// A type sequence, for use as the 2nd parameter to the \c expr\<\> class template. |
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/// The types in the sequence correspond to the children of a node in an expression tree. |
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template< typename Arg0 > |
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struct term |
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{ |
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static const long arity = 0; |
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typedef Arg0 child0; |
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BOOST_PP_REPEAT_FROM_TO(1, BOOST_PROTO_MAX_ARITY, BOOST_PROTO_DEFINE_VOID_N, ~) |
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/// INTERNAL ONLY |
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/// |
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typedef Arg0 back_; |
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}; |
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#define BOOST_PP_ITERATION_PARAMS_1 \ |
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(3, (1, BOOST_PROTO_MAX_ARITY, <boost/proto/detail/args.hpp>)) |
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#include BOOST_PP_ITERATE() |
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#if defined(__WAVE__) && defined(BOOST_PROTO_CREATE_PREPROCESSED_FILES) |
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#pragma wave option(output: null) |
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#endif |
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#undef BOOST_PROTO_DEFINE_VOID_N |
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#undef BOOST_PROTO_DEFINE_CHILD_N |
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#else |
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#define N BOOST_PP_ITERATION() |
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/// \brief A type sequence, for use as the 2nd parameter to the \c expr\<\> class template. |
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/// |
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/// A type sequence, for use as the 2nd parameter to the \c expr\<\> class template. |
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/// The types in the sequence correspond to the children of a node in an expression tree. |
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template< BOOST_PP_ENUM_PARAMS(N, typename Arg) > |
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struct BOOST_PP_CAT(list, N) |
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{ |
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static const long arity = N; |
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BOOST_PP_REPEAT(N, BOOST_PROTO_DEFINE_CHILD_N, ~) |
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BOOST_PP_REPEAT_FROM_TO(N, BOOST_PROTO_MAX_ARITY, BOOST_PROTO_DEFINE_VOID_N, ~) |
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/// INTERNAL ONLY |
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/// |
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typedef BOOST_PP_CAT(Arg, BOOST_PP_DEC(N)) back_; |
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}; |
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#undef N |
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#endif
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