Added boost header
This commit is contained in:
Christophe Riccio
148
test/external/boost/accumulators/numeric/detail/function_n.hpp
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148
test/external/boost/accumulators/numeric/detail/function_n.hpp
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// Copyright David Abrahams 2006. Distributed under the Boost
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// Software License, Version 1.0. (See accompanying
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// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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//
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// #include guards intentionally disabled.
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// #ifndef BOOST_DETAIL_FUNCTION_N_DWA2006514_HPP
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// # define BOOST_DETAIL_FUNCTION_N_DWA2006514_HPP
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#include <boost/mpl/void.hpp>
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#include <boost/mpl/apply.hpp>
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#include <boost/preprocessor/control/if.hpp>
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#include <boost/preprocessor/cat.hpp>
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#include <boost/preprocessor/punctuation/comma_if.hpp>
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#include <boost/preprocessor/repetition/enum_params.hpp>
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#include <boost/preprocessor/repetition/enum_trailing_params.hpp>
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#include <boost/preprocessor/repetition/repeat.hpp>
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#include <boost/preprocessor/seq/fold_left.hpp>
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#include <boost/preprocessor/seq/seq.hpp>
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#include <boost/preprocessor/seq/for_each.hpp>
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#include <boost/preprocessor/seq/for_each_i.hpp>
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#include <boost/preprocessor/seq/for_each_product.hpp>
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#include <boost/preprocessor/seq/size.hpp>
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#include <boost/type_traits/add_const.hpp>
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#include <boost/type_traits/remove_reference.hpp>
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namespace boost { namespace detail {
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# define BOOST_DETAIL_default_arg(z, n, _) \
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typedef mpl::void_ BOOST_PP_CAT(arg, n);
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# define BOOST_DETAIL_function_arg(z, n, _) \
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typedef typename remove_reference< \
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typename add_const< BOOST_PP_CAT(A, n) >::type \
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>::type BOOST_PP_CAT(arg, n);
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#define BOOST_DETAIL_cat_arg_counts(s, state, n) \
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BOOST_PP_IF( \
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n \
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, BOOST_PP_CAT(state, BOOST_PP_CAT(_, n)) \
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, state \
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) \
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/**/
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#define function_name \
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BOOST_PP_SEQ_FOLD_LEFT( \
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BOOST_DETAIL_cat_arg_counts \
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, BOOST_PP_CAT(function, BOOST_PP_SEQ_HEAD(args)) \
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, BOOST_PP_SEQ_TAIL(args)(0) \
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) \
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/**/
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template<typename F>
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struct function_name
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{
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BOOST_PP_REPEAT(
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BOOST_MPL_LIMIT_METAFUNCTION_ARITY
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, BOOST_DETAIL_default_arg
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, ~
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)
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template<typename Signature>
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struct result {};
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#define BOOST_DETAIL_function_result(r, _, n) \
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template<typename This BOOST_PP_ENUM_TRAILING_PARAMS(n, typename A)> \
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struct result<This(BOOST_PP_ENUM_PARAMS(n, A))> \
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{ \
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BOOST_PP_REPEAT(n, BOOST_DETAIL_function_arg, ~) \
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typedef \
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typename BOOST_PP_CAT(mpl::apply, BOOST_MPL_LIMIT_METAFUNCTION_ARITY)<\
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F \
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BOOST_PP_ENUM_TRAILING_PARAMS( \
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BOOST_MPL_LIMIT_METAFUNCTION_ARITY \
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, arg \
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) \
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>::type \
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impl; \
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typedef typename impl::result_type type; \
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}; \
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/**/
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BOOST_PP_SEQ_FOR_EACH(BOOST_DETAIL_function_result, _, args)
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# define arg_type(r, _, i, is_const) \
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BOOST_PP_COMMA_IF(i) BOOST_PP_CAT(A, i) BOOST_PP_CAT(const_if, is_const) &
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# define result_(r, n, constness) \
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typename result< \
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function_name( \
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BOOST_PP_SEQ_FOR_EACH_I_R(r, arg_type, ~, constness) \
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) \
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> \
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/**/
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# define param(r, _, i, is_const) BOOST_PP_COMMA_IF(i) \
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BOOST_PP_CAT(A, i) BOOST_PP_CAT(const_if, is_const) & BOOST_PP_CAT(x, i)
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# define param_list(r, n, constness) \
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BOOST_PP_SEQ_FOR_EACH_I_R(r, param, ~, constness)
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# define call_operator(r, constness) \
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template<BOOST_PP_ENUM_PARAMS(BOOST_PP_SEQ_SIZE(constness), typename A)> \
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result_(r, BOOST_PP_SEQ_SIZE(constness), constness)::type \
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operator ()( param_list(r, BOOST_PP_SEQ_SIZE(constness), constness) ) const \
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{ \
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typedef result_(r, BOOST_PP_SEQ_SIZE(constness), constness)::impl impl; \
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return impl()(BOOST_PP_ENUM_PARAMS(BOOST_PP_SEQ_SIZE(constness), x)); \
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} \
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/**/
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# define const_if0
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# define const_if1 const
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# define bits(z, n, _) ((0)(1))
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# define gen_operator(r, _, n) \
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BOOST_PP_SEQ_FOR_EACH_PRODUCT_R( \
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r \
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, call_operator \
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, BOOST_PP_REPEAT(n, bits, ~) \
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) \
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/**/
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BOOST_PP_SEQ_FOR_EACH(
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gen_operator
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, ~
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, args
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)
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# undef bits
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# undef const_if1
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# undef const_if0
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# undef call_operator
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# undef param_list
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# undef param
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# undef result_
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# undef default_
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# undef arg_type
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# undef gen_operator
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# undef function_name
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# undef args
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};
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}} // namespace boost::detail
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//#endif // BOOST_DETAIL_FUNCTION_N_DWA2006514_HPP
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