Chris@16: #if !defined(BOOST_PROTO_DONT_USE_PREPROCESSED_FILES)
Chris@16: 
Chris@16:     #include <boost/proto/detail/preprocessed/args.hpp>
Chris@16: 
Chris@16: #elif !defined(BOOST_PP_IS_ITERATING)
Chris@16: 
Chris@16:     /// INTERNAL ONLY
Chris@16:     ///
Chris@16:     #define BOOST_PROTO_DEFINE_CHILD_N(Z, N, DATA)                                              \
Chris@16:         typedef BOOST_PP_CAT(Arg, N) BOOST_PP_CAT(child, N);                                    \
Chris@16:         /**< INTERNAL ONLY */
Chris@16: 
Chris@16:     /// INTERNAL ONLY
Chris@16:     ///
Chris@16:     #define BOOST_PROTO_DEFINE_VOID_N(z, n, data)                                               \
Chris@16:         typedef mpl::void_ BOOST_PP_CAT(child, n);                                              \
Chris@16:         /**< INTERNAL ONLY */
Chris@16: 
Chris@16:     #if defined(__WAVE__) && defined(BOOST_PROTO_CREATE_PREPROCESSED_FILES)
Chris@16:         #pragma wave option(preserve: 2, line: 0, output: "preprocessed/args.hpp")
Chris@16:     #endif
Chris@16: 
Chris@16:     ///////////////////////////////////////////////////////////////////////////////
Chris@16:     /// \file args.hpp
Chris@16:     /// Contains definition of \c term\<\>, \c list1\<\>, \c list2\<\>, ...
Chris@16:     /// class templates.
Chris@16:     //
Chris@16:     //  Copyright 2008 Eric Niebler. Distributed under the Boost
Chris@16:     //  Software License, Version 1.0. (See accompanying file
Chris@16:     //  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
Chris@16: 
Chris@16:     #if defined(__WAVE__) && defined(BOOST_PROTO_CREATE_PREPROCESSED_FILES)
Chris@16:         #pragma wave option(preserve: 1)
Chris@16:     #endif
Chris@16: 
Chris@16:     /// \brief A type sequence, for use as the 2nd parameter to the \c expr\<\> class template.
Chris@16:     ///
Chris@16:     /// A type sequence, for use as the 2nd parameter to the \c expr\<\> class template.
Chris@16:     /// The types in the sequence correspond to the children of a node in an expression tree.
Chris@16:     template< typename Arg0 >
Chris@16:     struct term
Chris@16:     {
Chris@16:         static const long arity = 0;
Chris@16:         typedef Arg0 child0;
Chris@16:         BOOST_PP_REPEAT_FROM_TO(1, BOOST_PROTO_MAX_ARITY, BOOST_PROTO_DEFINE_VOID_N, ~)
Chris@16: 
Chris@16:         /// INTERNAL ONLY
Chris@16:         ///
Chris@16:         typedef Arg0 back_;
Chris@16:     };
Chris@16: 
Chris@16:     #define BOOST_PP_ITERATION_PARAMS_1                                                         \
Chris@16:         (3, (1, BOOST_PROTO_MAX_ARITY, <boost/proto/detail/args.hpp>))
Chris@16:     #include BOOST_PP_ITERATE()
Chris@16: 
Chris@16:     #if defined(__WAVE__) && defined(BOOST_PROTO_CREATE_PREPROCESSED_FILES)
Chris@16:         #pragma wave option(output: null)
Chris@16:     #endif
Chris@16: 
Chris@16:     #undef BOOST_PROTO_DEFINE_VOID_N
Chris@16:     #undef BOOST_PROTO_DEFINE_CHILD_N
Chris@16: 
Chris@16: #else
Chris@16: 
Chris@16:     #define N BOOST_PP_ITERATION()
Chris@16: 
Chris@16:     /// \brief A type sequence, for use as the 2nd parameter to the \c expr\<\> class template.
Chris@16:     ///
Chris@16:     /// A type sequence, for use as the 2nd parameter to the \c expr\<\> class template.
Chris@16:     /// The types in the sequence correspond to the children of a node in an expression tree.
Chris@16:     template< BOOST_PP_ENUM_PARAMS(N, typename Arg) >
Chris@16:     struct BOOST_PP_CAT(list, N)
Chris@16:     {
Chris@16:         static const long arity = N;
Chris@16:         BOOST_PP_REPEAT(N, BOOST_PROTO_DEFINE_CHILD_N, ~)
Chris@16:         BOOST_PP_REPEAT_FROM_TO(N, BOOST_PROTO_MAX_ARITY, BOOST_PROTO_DEFINE_VOID_N, ~)
Chris@16: 
Chris@16:         /// INTERNAL ONLY
Chris@16:         ///
Chris@16:         typedef BOOST_PP_CAT(Arg, BOOST_PP_DEC(N)) back_;
Chris@16:     };
Chris@16: 
Chris@16:     #undef N
Chris@16: 
Chris@16: #endif