89 lines
2.5 KiB
C++
89 lines
2.5 KiB
C++
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// Copyright David Abrahams, Daniel Wallin 2003. Use, modification and
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// distribution is subject to the Boost Software License, Version 1.0.
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// (See accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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// This file generates overloads in this format:
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//
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// template<class A0, class A1>
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// typename mpl::apply_wrap1<
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// aux::make_arg_list<
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// PS0,A0
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// , aux::make_arg_list<
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// PS1,A1
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// , mpl::identity<aux::empty_arg_list>
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// >
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// >
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// , unnamed_list
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// >::type
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// operator()(A0 const& a0, A1 const& a1) const
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// {
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// typedef typename mpl::apply_wrap1<
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// aux::make_arg_list<
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// PS0,A0
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// , aux::make_arg_list<
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// PS1,A1
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// , mpl::identity<aux::empty_arg_list>
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// >
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// >
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// >::type arg_tuple;
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//
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// return arg_tuple(
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// a0
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// , a1
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// , aux::void_()
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// ...
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// );
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// }
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//
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#if !defined(BOOST_PP_IS_ITERATING)
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# error Boost.Parameters - do not include this file!
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#endif
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#define N BOOST_PP_ITERATION()
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#define BOOST_PARAMETER_open_list(z, n, text) \
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aux::item< \
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BOOST_PP_CAT(PS, n), BOOST_PP_CAT(A, n)
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#define BOOST_PARAMETER_close_list(z, n, text) >
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#define BOOST_PARAMETER_arg_list(n) \
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aux::make_arg_list< \
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BOOST_PP_ENUM(N, BOOST_PARAMETER_open_list, _) \
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, void_ \
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BOOST_PP_REPEAT(N, BOOST_PARAMETER_close_list, _) \
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, deduced_list \
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, aux::tag_keyword_arg \
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>
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#define BOOST_PARAMETER_arg_pack_init(z, n, limit) \
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BOOST_PP_CAT(a, BOOST_PP_SUB(limit,n))
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template<BOOST_PP_ENUM_PARAMS(N, class A)>
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typename mpl::first<
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typename BOOST_PARAMETER_arg_list(N)::type
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>::type
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operator()(BOOST_PP_ENUM_BINARY_PARAMS(N, A, & a)) const
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{
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typedef typename BOOST_PARAMETER_arg_list(N)::type result;
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typedef typename mpl::first<result>::type result_type;
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typedef typename mpl::second<result>::type error;
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error();
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return result_type(
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BOOST_PP_ENUM(N, BOOST_PARAMETER_arg_pack_init, BOOST_PP_DEC(N))
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BOOST_PP_ENUM_TRAILING_PARAMS(
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BOOST_PP_SUB(BOOST_PARAMETER_MAX_ARITY, N)
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, aux::void_reference() BOOST_PP_INTERCEPT
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));
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}
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#undef BOOST_PARAMETER_arg_list
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#undef BOOST_PARAMETER_open_list
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#undef BOOST_PARAMETER_close_list
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#undef N
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