forked from boostorg/mpl
135 lines
3.6 KiB
C++
135 lines
3.6 KiB
C++
//-----------------------------------------------------------------------------
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// boost mpl/lambda_no_ctps.hpp header file
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// See http://www.boost.org for updates, documentation, and revision history.
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//-----------------------------------------------------------------------------
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//
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// Copyright (c) 2001-02
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// Aleksey Gurtovoy
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//
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// Permission to use, copy, modify, distribute and sell this software
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// and its documentation for any purpose is hereby granted without fee,
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// provided that the above copyright notice appears in all copies and
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// that both the copyright notice and this permission notice appear in
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// supporting documentation. No representations are made about the
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// suitability of this software for any purpose. It is provided "as is"
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// without express or implied warranty.
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#if !defined(BOOST_PP_IS_ITERATING)
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///// header body
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#ifndef BOOST_MPL_AUX_LAMBDA_NO_CTPS_HPP_INCLUDED
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#define BOOST_MPL_AUX_LAMBDA_NO_CTPS_HPP_INCLUDED
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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.hpp"
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# include "boost/mpl/protect.hpp"
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# include "boost/mpl/bool_c.hpp"
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# include "boost/mpl/aux_/template_arity.hpp"
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#endif
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#include "boost/mpl/aux_/config/use_preprocessed.hpp"
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#if defined(BOOST_MPL_USE_PREPROCESSED_HEADERS) && \
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!defined(BOOST_MPL_PREPROCESSING_MODE)
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# define BOOST_MPL_PREPROCESSED_HEADER lambda_no_ctps.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/params.hpp"
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# include "boost/mpl/aux_/preprocessor/repeat.hpp"
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# include "boost/preprocessor/iterate.hpp"
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# include "boost/preprocessor/inc.hpp"
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# include "boost/preprocessor/cat.hpp"
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# include "boost/config.hpp"
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namespace boost {
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namespace mpl {
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// local macros, #undef-ined at the end of the header
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# define AUX_LAMBDA_PARAMS(i, param) \
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BOOST_MPL_PP_PARAMS(i, param) \
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/**/
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namespace aux {
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template< int arity, bool Protect > struct lambda_impl
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{
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template< typename T > struct result_
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{
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typedef T type;
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};
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};
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#define BOOST_PP_ITERATION_PARAMS_1 \
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(3,(1, BOOST_MPL_METAFUNCTION_MAX_ARITY, "boost/mpl/aux_/lambda_no_ctps.hpp"))
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#include BOOST_PP_ITERATE()
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} // namespace aux
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template< typename T, bool Protect = true >
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struct lambda
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#if !defined(BOOST_MSVC) || BOOST_MSVC > 1200
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: aux::lambda_impl< ::boost::mpl::aux::template_arity<T>::value, Protect >
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#else
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: aux::lambda_impl< ::boost::mpl::aux::template_arity<T>::value, bool_c<Protect>::value >
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#endif
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::template result_<T>
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{
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};
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# undef AUX_LAMBDA_PARAMS
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} // namespace mpl
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} // namespace boost
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#endif // BOOST_MPL_USE_PREPROCESSED_HEADERS
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#endif // BOOST_MPL_AUX_LAMBDA_NO_CTPS_HPP_INCLUDED
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///// iteration
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#else
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#define i BOOST_PP_FRAME_ITERATION(1)
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# define AUX_LAMBDA_INVOCATION(unused, i, T) \
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, typename lambda< \
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typename f_::BOOST_PP_CAT(arg,BOOST_PP_INC(i)) \
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, false \
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>::type \
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/**/
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template<> struct lambda_impl<i,false>
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{
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template< typename F > struct result_
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{
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typedef typename F::rebind f_;
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typedef BOOST_PP_CAT(bind,i)<
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f_
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BOOST_MPL_PP_REPEAT(i, AUX_LAMBDA_INVOCATION, T)
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> type;
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};
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};
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template<> struct lambda_impl<i,true>
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{
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template< typename F > struct result_
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{
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typedef typename F::rebind f_;
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typedef protect< BOOST_PP_CAT(bind,i)<
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f_
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BOOST_MPL_PP_REPEAT(i, AUX_LAMBDA_INVOCATION, T)
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> > type;
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};
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};
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# undef AUX_LAMBDA_INVOCATION
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#undef i
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#endif // BOOST_PP_IS_ITERATING
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