355 lines
9.0 KiB
C++
355 lines
9.0 KiB
C++
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#if !defined(BOOST_PP_IS_ITERATING)
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///// header body
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#ifndef BOOST_MPL_AUX_FULL_LAMBDA_HPP_INCLUDED
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#define BOOST_MPL_AUX_FULL_LAMBDA_HPP_INCLUDED
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// Copyright Aleksey Gurtovoy 2001-2004
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//
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// Distributed under 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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//
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// See http://www.boost.org/libs/mpl for documentation.
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// $Id: full_lambda.hpp 49267 2008-10-11 06:19:02Z agurtovoy $
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// $Date: 2008-10-11 02:19:02 -0400 (Sat, 11 Oct 2008) $
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// $Revision: 49267 $
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#if !defined(BOOST_MPL_PREPROCESSING_MODE)
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# include <boost/mpl/lambda_fwd.hpp>
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# include <boost/mpl/bind_fwd.hpp>
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# include <boost/mpl/protect.hpp>
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# include <boost/mpl/quote.hpp>
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# include <boost/mpl/arg.hpp>
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# include <boost/mpl/bool.hpp>
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# include <boost/mpl/int_fwd.hpp>
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# include <boost/mpl/aux_/template_arity.hpp>
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# include <boost/mpl/aux_/na_spec.hpp>
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# include <boost/mpl/aux_/config/ttp.hpp>
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# if defined(BOOST_MPL_CFG_EXTENDED_TEMPLATE_PARAMETERS_MATCHING)
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# include <boost/mpl/if.hpp>
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# endif
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#endif
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#include <boost/mpl/aux_/lambda_arity_param.hpp>
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#include <boost/mpl/aux_/config/use_preprocessed.hpp>
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#if !defined(BOOST_MPL_CFG_NO_PREPROCESSED_HEADERS) \
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&& !defined(BOOST_MPL_PREPROCESSING_MODE)
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# define BOOST_MPL_PREPROCESSED_HEADER full_lambda.hpp
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# include <boost/mpl/aux_/include_preprocessed.hpp>
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#else
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# include <boost/mpl/limits/arity.hpp>
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# include <boost/mpl/aux_/preprocessor/default_params.hpp>
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# include <boost/mpl/aux_/preprocessor/params.hpp>
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# include <boost/mpl/aux_/preprocessor/enum.hpp>
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# include <boost/mpl/aux_/preprocessor/repeat.hpp>
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# include <boost/mpl/aux_/config/dmc_ambiguous_ctps.hpp>
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# include <boost/preprocessor/iterate.hpp>
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# include <boost/preprocessor/comma_if.hpp>
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# include <boost/preprocessor/inc.hpp>
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# include <boost/preprocessor/cat.hpp>
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namespace boost { namespace mpl {
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// local macros, #undef-ined at the end of the header
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# define AUX778076_LAMBDA_PARAMS(i_, param) \
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BOOST_MPL_PP_PARAMS(i_, param) \
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/**/
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# define AUX778076_BIND_PARAMS(param) \
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BOOST_MPL_PP_PARAMS( \
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BOOST_MPL_LIMIT_METAFUNCTION_ARITY \
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, param \
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) \
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/**/
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# define AUX778076_BIND_N_PARAMS(i_, param) \
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BOOST_PP_COMMA_IF(i_) \
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BOOST_MPL_PP_PARAMS(i_, param) \
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/**/
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# define AUX778076_ARITY_PARAM(param) \
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BOOST_MPL_AUX_LAMBDA_ARITY_PARAM(param) \
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/**/
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#define n_ BOOST_MPL_LIMIT_METAFUNCTION_ARITY
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namespace aux {
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template<
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BOOST_MPL_PP_DEFAULT_PARAMS(n_,bool C,false)
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>
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struct lambda_or
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: true_
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{
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};
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template<>
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struct lambda_or< BOOST_MPL_PP_ENUM(n_,false) >
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: false_
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{
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};
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} // namespace aux
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#undef n_
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template<
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typename T
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, typename Tag
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AUX778076_ARITY_PARAM(typename Arity)
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>
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struct lambda
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{
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typedef false_ is_le;
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typedef T result_;
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typedef T type;
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};
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template<
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typename T
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>
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struct is_lambda_expression
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: lambda<T>::is_le
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{
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};
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template< int N, typename Tag >
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struct lambda< arg<N>,Tag AUX778076_ARITY_PARAM(int_<-1>) >
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{
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typedef true_ is_le;
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typedef mpl::arg<N> result_; // qualified for the sake of MIPSpro 7.41
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typedef mpl::protect<result_> type;
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};
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#define BOOST_PP_ITERATION_PARAMS_1 \
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(3,(0, BOOST_MPL_LIMIT_METAFUNCTION_ARITY, <boost/mpl/aux_/full_lambda.hpp>))
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#include BOOST_PP_ITERATE()
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/// special case for 'protect'
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template< typename T, typename Tag >
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struct lambda< mpl::protect<T>,Tag AUX778076_ARITY_PARAM(int_<1>) >
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{
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typedef false_ is_le;
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typedef mpl::protect<T> result_;
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typedef result_ type;
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};
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/// specializations for the main 'bind' form
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template<
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typename F, AUX778076_BIND_PARAMS(typename T)
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, typename Tag
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>
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struct lambda<
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bind<F,AUX778076_BIND_PARAMS(T)>
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, Tag
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AUX778076_ARITY_PARAM(int_<BOOST_PP_INC(BOOST_MPL_LIMIT_METAFUNCTION_ARITY)>)
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>
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{
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typedef false_ is_le;
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typedef bind<F, AUX778076_BIND_PARAMS(T)> result_;
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typedef result_ type;
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};
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#if defined(BOOST_MPL_CFG_EXTENDED_TEMPLATE_PARAMETERS_MATCHING)
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template<
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typename F
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, typename Tag1
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, typename Tag2
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, typename Arity
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>
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struct lambda<
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lambda<F,Tag1,Arity>
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, Tag2
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, int_<3>
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>
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{
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typedef lambda< F,Tag2 > l1;
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typedef lambda< Tag1,Tag2 > l2;
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typedef typename l1::is_le is_le;
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typedef bind1< quote1<aux::template_arity>, typename l1::result_ > arity_;
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typedef lambda< typename if_<is_le,arity_,Arity>::type,Tag2 > l3;
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typedef aux::le_result3<is_le, Tag2, mpl::lambda, l1, l2, l3> le_result_;
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typedef typename le_result_::result_ result_;
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typedef typename le_result_::type type;
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};
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#elif !defined(BOOST_MPL_CFG_DMC_AMBIGUOUS_CTPS)
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/// workaround for MWCW 8.3+/EDG < 303, leads to ambiguity on Digital Mars
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template<
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typename F, typename Tag1, typename Tag2
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>
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struct lambda<
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lambda< F,Tag1 >
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, Tag2
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>
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{
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typedef lambda< F,Tag2 > l1;
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typedef lambda< Tag1,Tag2 > l2;
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typedef typename l1::is_le is_le;
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typedef aux::le_result2<is_le, Tag2, mpl::lambda, l1, l2> le_result_;
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typedef typename le_result_::result_ result_;
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typedef typename le_result_::type type;
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};
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#endif
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# undef AUX778076_ARITY_PARAM
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# undef AUX778076_BIND_N_PARAMS
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# undef AUX778076_BIND_PARAMS
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# undef AUX778076_LAMBDA_PARAMS
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#if !defined(BOOST_MPL_CFG_EXTENDED_TEMPLATE_PARAMETERS_MATCHING)
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BOOST_MPL_AUX_NA_SPEC(2, lambda)
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#else
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BOOST_MPL_AUX_NA_SPEC2(2, 3, lambda)
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#endif
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}}
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#endif // BOOST_MPL_CFG_NO_PREPROCESSED_HEADERS
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#endif // BOOST_MPL_AUX_FULL_LAMBDA_HPP_INCLUDED
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///// iteration, depth == 1
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// For gcc 4.4 compatability, we must include the
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// BOOST_PP_ITERATION_DEPTH test inside an #else clause.
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#else // BOOST_PP_IS_ITERATING
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#if BOOST_PP_ITERATION_DEPTH() == 1
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#define i_ BOOST_PP_FRAME_ITERATION(1)
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#if i_ > 0
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namespace aux {
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# define AUX778076_RESULT(unused, i_, T) \
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BOOST_PP_COMMA_IF(i_) \
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typename BOOST_PP_CAT(T, BOOST_PP_INC(i_))::result_ \
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/**/
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# define AUX778076_TYPE(unused, i_, T) \
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BOOST_PP_COMMA_IF(i_) \
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typename BOOST_PP_CAT(T, BOOST_PP_INC(i_))::type \
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/**/
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template<
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typename IsLE, typename Tag
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, template< AUX778076_LAMBDA_PARAMS(i_, typename P) > class F
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, AUX778076_LAMBDA_PARAMS(i_, typename L)
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>
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struct BOOST_PP_CAT(le_result,i_)
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{
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typedef F<
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BOOST_MPL_PP_REPEAT(i_, AUX778076_TYPE, L)
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> result_;
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typedef result_ type;
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};
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template<
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typename Tag
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, template< AUX778076_LAMBDA_PARAMS(i_, typename P) > class F
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, AUX778076_LAMBDA_PARAMS(i_, typename L)
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>
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struct BOOST_PP_CAT(le_result,i_)< true_,Tag,F,AUX778076_LAMBDA_PARAMS(i_, L) >
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{
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typedef BOOST_PP_CAT(bind,i_)<
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BOOST_PP_CAT(quote,i_)<F,Tag>
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, BOOST_MPL_PP_REPEAT(i_, AUX778076_RESULT, L)
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> result_;
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typedef mpl::protect<result_> type;
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};
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# undef AUX778076_TYPE
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# undef AUX778076_RESULT
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} // namespace aux
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# define AUX778076_LAMBDA_TYPEDEF(unused, i_, T) \
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typedef lambda< BOOST_PP_CAT(T, BOOST_PP_INC(i_)), Tag > \
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BOOST_PP_CAT(l,BOOST_PP_INC(i_)); \
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/**/
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# define AUX778076_IS_LE_TYPEDEF(unused, i_, unused2) \
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typedef typename BOOST_PP_CAT(l,BOOST_PP_INC(i_))::is_le \
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BOOST_PP_CAT(is_le,BOOST_PP_INC(i_)); \
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/**/
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# define AUX778076_IS_LAMBDA_EXPR(unused, i_, unused2) \
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BOOST_PP_COMMA_IF(i_) \
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BOOST_PP_CAT(is_le,BOOST_PP_INC(i_))::value \
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/**/
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template<
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template< AUX778076_LAMBDA_PARAMS(i_, typename P) > class F
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, AUX778076_LAMBDA_PARAMS(i_, typename T)
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, typename Tag
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>
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struct lambda<
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F<AUX778076_LAMBDA_PARAMS(i_, T)>
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, Tag
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AUX778076_ARITY_PARAM(int_<i_>)
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>
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{
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BOOST_MPL_PP_REPEAT(i_, AUX778076_LAMBDA_TYPEDEF, T)
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BOOST_MPL_PP_REPEAT(i_, AUX778076_IS_LE_TYPEDEF, unused)
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typedef typename aux::lambda_or<
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BOOST_MPL_PP_REPEAT(i_, AUX778076_IS_LAMBDA_EXPR, unused)
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>::type is_le;
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typedef aux::BOOST_PP_CAT(le_result,i_)<
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is_le, Tag, F, AUX778076_LAMBDA_PARAMS(i_, l)
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> le_result_;
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typedef typename le_result_::result_ result_;
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typedef typename le_result_::type type;
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};
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# undef AUX778076_IS_LAMBDA_EXPR
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# undef AUX778076_IS_LE_TYPEDEF
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# undef AUX778076_LAMBDA_TYPEDEF
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#endif // i_ > 0
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template<
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typename F AUX778076_BIND_N_PARAMS(i_, typename T)
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, typename Tag
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>
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struct lambda<
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BOOST_PP_CAT(bind,i_)<F AUX778076_BIND_N_PARAMS(i_, T)>
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, Tag
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AUX778076_ARITY_PARAM(int_<BOOST_PP_INC(i_)>)
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>
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{
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typedef false_ is_le;
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typedef BOOST_PP_CAT(bind,i_)<
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F
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AUX778076_BIND_N_PARAMS(i_, T)
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> result_;
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typedef result_ type;
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};
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#undef i_
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#endif // BOOST_PP_ITERATION_DEPTH()
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#endif // BOOST_PP_IS_ITERATING
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