forked from boostorg/mpl
125 lines
3.1 KiB
C++
125 lines
3.1 KiB
C++
//-----------------------------------------------------------------------------
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// boost mpl/quote.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) 2000-02
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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_QUOTE_HPP_INCLUDED
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#define BOOST_MPL_QUOTE_HPP_INCLUDED
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#if !defined(BOOST_MPL_PREPROCESSING_MODE)
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# include "boost/mpl/aux_/has_type.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_NO_PREPROCESSED_HEADERS) \
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&& !defined(BOOST_MPL_PREPROCESSING_MODE)
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# define BOOST_MPL_PREPROCESSED_HEADER quote.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_/config/ttp.hpp"
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# include "boost/mpl/aux_/config/ctps.hpp"
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# include "boost/preprocessor/iterate.hpp"
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# include "boost/preprocessor/cat.hpp"
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#if !defined(BOOST_NO_TEMPLATE_TEMPLATE_PARAMETERS)
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namespace boost {
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namespace mpl {
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#if !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION)
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template< typename T, bool has_type_ = aux::has_type<T>::value >
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struct quote_impl
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#if !defined(__BORLANDC__) && (__BORLANDC__ <= 0x561 || !defined(BOOST_STRICT_CONFIG))
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: T
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{
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#else
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{
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typedef typename T::type type;
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#endif
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};
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template< typename T >
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struct quote_impl<T,false>
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{
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typedef T type;
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};
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#else
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template< bool > struct quote_impl
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{
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template< typename T > struct result_
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: T
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{
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};
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};
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template<> struct quote_impl<false>
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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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#endif // BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
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#define BOOST_PP_ITERATION_PARAMS_1 \
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(3,(1, BOOST_MPL_METAFUNCTION_MAX_ARITY, "boost/mpl/quote.hpp"))
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#include BOOST_PP_ITERATE()
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} // namespace mpl
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} // namespace boost
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#endif // BOOST_NO_TEMPLATE_TEMPLATE_PARAMETERS
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#endif // BOOST_MPL_USE_PREPROCESSED_HEADERS
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#endif // BOOST_MPL_QUOTE_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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template<
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template< BOOST_MPL_PP_PARAMS(i, typename P) > class F
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>
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struct BOOST_PP_CAT(quote,i)
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{
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template< BOOST_MPL_PP_PARAMS(i, typename U) > struct apply
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#if !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION)
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: quote_impl< F< BOOST_MPL_PP_PARAMS(i, U) > >
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#else
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: quote_impl< aux::has_type< F< BOOST_MPL_PP_PARAMS(i, U) > >::value >
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::template result_< F< BOOST_MPL_PP_PARAMS(i, U) > >
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#endif
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{
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};
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};
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#undef i
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#endif // BOOST_PP_IS_ITERATING
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