williamr@2: 
williamr@2: #if !defined(BOOST_PP_IS_ITERATING)
williamr@2: 
williamr@2: ///// header body
williamr@2: 
williamr@2: #ifndef BOOST_MPL_QUOTE_HPP_INCLUDED
williamr@2: #define BOOST_MPL_QUOTE_HPP_INCLUDED
williamr@2: 
williamr@2: // Copyright Aleksey Gurtovoy 2000-2004
williamr@2: //
williamr@2: // Distributed under the Boost Software License, Version 1.0. 
williamr@2: // (See accompanying file LICENSE_1_0.txt or copy at 
williamr@2: // http://www.boost.org/LICENSE_1_0.txt)
williamr@2: //
williamr@2: // See http://www.boost.org/libs/mpl for documentation.
williamr@2: 
williamr@2: // $Source: /cvsroot/boost/boost/boost/mpl/quote.hpp,v $
williamr@2: // $Date: 2006/05/03 03:27:58 $
williamr@2: // $Revision: 1.5.14.2 $
williamr@2: 
williamr@2: #if !defined(BOOST_MPL_PREPROCESSING_MODE)
williamr@2: #   include <boost/mpl/void.hpp>
williamr@2: #   include <boost/mpl/aux_/has_type.hpp>
williamr@2: #endif
williamr@2: 
williamr@2: #include <boost/mpl/aux_/config/ttp.hpp>
williamr@2: 
williamr@2: #if defined(BOOST_MPL_CFG_NO_TEMPLATE_TEMPLATE_PARAMETERS)
williamr@2: #   define BOOST_MPL_CFG_NO_QUOTE_TEMPLATE
williamr@2: #endif
williamr@2: 
williamr@2: #if !defined(BOOST_MPL_CFG_NO_IMPLICIT_METAFUNCTIONS) \
williamr@2:     && defined(BOOST_MPL_CFG_NO_HAS_XXX)
williamr@2: #   define BOOST_MPL_CFG_NO_IMPLICIT_METAFUNCTIONS
williamr@2: #endif
williamr@2: 
williamr@2: #include <boost/mpl/aux_/config/use_preprocessed.hpp>
williamr@2: 
williamr@2: #if !defined(BOOST_MPL_CFG_NO_PREPROCESSED_HEADERS) \
williamr@2:  && !defined(BOOST_MPL_PREPROCESSING_MODE)
williamr@2: 
williamr@2: #   define BOOST_MPL_PREPROCESSED_HEADER quote.hpp
williamr@2: #   include <boost/mpl/aux_/include_preprocessed.hpp>
williamr@2: 
williamr@2: #else
williamr@2: 
williamr@2: #   include <boost/mpl/limits/arity.hpp>
williamr@2: #   include <boost/mpl/aux_/preprocessor/params.hpp>
williamr@2: #   include <boost/mpl/aux_/config/ctps.hpp>
williamr@2: #   include <boost/mpl/aux_/config/workaround.hpp>
williamr@2: 
williamr@2: #   include <boost/preprocessor/iterate.hpp>
williamr@2: #   include <boost/preprocessor/cat.hpp>
williamr@2: 
williamr@2: #if !defined(BOOST_MPL_CFG_NO_QUOTE_TEMPLATE)
williamr@2: 
williamr@2: namespace boost { namespace mpl {
williamr@2: 
williamr@2: #if !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION)
williamr@2: 
williamr@2: template< typename T, bool has_type_ >
williamr@2: struct quote_impl
williamr@2: // GCC has a problem with metafunction forwarding when T is a
williamr@2: // specialization of a template called 'type'.
williamr@2: # if BOOST_WORKAROUND(__GNUC__, BOOST_TESTED_AT(4)) \
williamr@2:     && BOOST_WORKAROUND(__GNUC_MINOR__, BOOST_TESTED_AT(0)) \
williamr@2:     && BOOST_WORKAROUND(__GNUC_PATCHLEVEL__, BOOST_TESTED_AT(2))
williamr@2: {
williamr@2:     typedef typename T::type type;
williamr@2: };
williamr@2: # else 
williamr@2:     : T
williamr@2: {
williamr@2: };
williamr@2: # endif 
williamr@2: 
williamr@2: template< typename T >
williamr@2: struct quote_impl<T,false>
williamr@2: {
williamr@2:     typedef T type;
williamr@2: };
williamr@2: 
williamr@2: #else // BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
williamr@2: 
williamr@2: template< bool > struct quote_impl
williamr@2: {
williamr@2:     template< typename T > struct result_
williamr@2:         : T
williamr@2:     {
williamr@2:     };
williamr@2: };
williamr@2: 
williamr@2: template<> struct quote_impl<false>
williamr@2: {
williamr@2:     template< typename T > struct result_
williamr@2:     {
williamr@2:         typedef T type;
williamr@2:     };
williamr@2: };
williamr@2: 
williamr@2: #endif 
williamr@2: 
williamr@2: #define BOOST_PP_ITERATION_PARAMS_1 \
williamr@2:     (3,(1, BOOST_MPL_LIMIT_METAFUNCTION_ARITY, <boost/mpl/quote.hpp>))
williamr@2: #include BOOST_PP_ITERATE()
williamr@2: 
williamr@2: }}
williamr@2: 
williamr@2: #endif // BOOST_MPL_CFG_NO_QUOTE_TEMPLATE
williamr@2: 
williamr@2: #endif // BOOST_MPL_CFG_NO_PREPROCESSED_HEADERS
williamr@2: #endif // BOOST_MPL_QUOTE_HPP_INCLUDED
williamr@2: 
williamr@2: ///// iteration
williamr@2: 
williamr@2: #else
williamr@2: #define i_ BOOST_PP_FRAME_ITERATION(1)
williamr@2: 
williamr@2: template<
williamr@2:       template< BOOST_MPL_PP_PARAMS(i_, typename P) > class F
williamr@2:     , typename Tag = void_
williamr@2:     >
williamr@2: struct BOOST_PP_CAT(quote,i_)
williamr@2: {
williamr@2:     template< BOOST_MPL_PP_PARAMS(i_, typename U) > struct apply
williamr@2: #if !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION)
williamr@2:         : quote_impl<
williamr@2:               F< BOOST_MPL_PP_PARAMS(i_, U) >
williamr@2:             , aux::has_type< F< BOOST_MPL_PP_PARAMS(i_, U) > >::value
williamr@2:             >
williamr@2: #else
williamr@2:         : quote_impl< aux::has_type< F< BOOST_MPL_PP_PARAMS(i_, U) > >::value >
williamr@2:             ::template result_< F< BOOST_MPL_PP_PARAMS(i_, U) > >
williamr@2: #endif
williamr@2:     {
williamr@2:     };
williamr@2: };
williamr@2: 
williamr@2: #undef i_
williamr@2: #endif // BOOST_PP_IS_ITERATING