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/Src/Dependencies/Boost/boost/mpl/quote.hpp

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C++ Header | 151 lines | 105 code | 32 blank | 14 comment | 7 complexity | 276a5d996211de84ca7a88d0b8a5b79e MD5 | raw file
  1
  2#if !defined(BOOST_PP_IS_ITERATING)
  3
  4///// header body
  5
  6#ifndef BOOST_MPL_QUOTE_HPP_INCLUDED
  7#define BOOST_MPL_QUOTE_HPP_INCLUDED
  8
  9// Copyright Aleksey Gurtovoy 2000-2008
 10//
 11// Distributed under the Boost Software License, Version 1.0. 
 12// (See accompanying file LICENSE_1_0.txt or copy at 
 13// http://www.boost.org/LICENSE_1_0.txt)
 14//
 15// See http://www.boost.org/libs/mpl for documentation.
 16
 17// $Id: quote.hpp 49272 2008-10-11 06:50:46Z agurtovoy $
 18// $Date: 2008-10-11 17:50:46 +1100 (Sat, 11 Oct 2008) $
 19// $Revision: 49272 $
 20
 21#if !defined(BOOST_MPL_PREPROCESSING_MODE)
 22#   include <boost/mpl/void.hpp>
 23#   include <boost/mpl/aux_/has_type.hpp>
 24#endif
 25
 26#include <boost/mpl/aux_/config/bcc.hpp>
 27#include <boost/mpl/aux_/config/ttp.hpp>
 28
 29#if defined(BOOST_MPL_CFG_NO_TEMPLATE_TEMPLATE_PARAMETERS) \
 30    && !defined(BOOST_MPL_CFG_BCC590_WORKAROUNDS)
 31#   define BOOST_MPL_CFG_NO_QUOTE_TEMPLATE
 32#endif
 33
 34#if !defined(BOOST_MPL_CFG_NO_IMPLICIT_METAFUNCTIONS) \
 35    && defined(BOOST_MPL_CFG_NO_HAS_XXX)
 36#   define BOOST_MPL_CFG_NO_IMPLICIT_METAFUNCTIONS
 37#endif
 38
 39#include <boost/mpl/aux_/config/use_preprocessed.hpp>
 40
 41#if !defined(BOOST_MPL_CFG_NO_PREPROCESSED_HEADERS) \
 42 && !defined(BOOST_MPL_PREPROCESSING_MODE)
 43
 44#   define BOOST_MPL_PREPROCESSED_HEADER quote.hpp
 45#   include <boost/mpl/aux_/include_preprocessed.hpp>
 46
 47#else
 48
 49#   include <boost/mpl/limits/arity.hpp>
 50#   include <boost/mpl/aux_/preprocessor/params.hpp>
 51#   include <boost/mpl/aux_/config/ctps.hpp>
 52#   include <boost/mpl/aux_/config/workaround.hpp>
 53
 54#   include <boost/preprocessor/iterate.hpp>
 55#   include <boost/preprocessor/cat.hpp>
 56
 57#if !defined(BOOST_MPL_CFG_NO_QUOTE_TEMPLATE)
 58
 59namespace boost { namespace mpl {
 60
 61#if !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION)
 62
 63template< typename T, bool has_type_ >
 64struct quote_impl
 65// GCC has a problem with metafunction forwarding when T is a
 66// specialization of a template called 'type'.
 67# if BOOST_WORKAROUND(__GNUC__, BOOST_TESTED_AT(4)) \
 68    && BOOST_WORKAROUND(__GNUC_MINOR__, BOOST_TESTED_AT(0)) \
 69    && BOOST_WORKAROUND(__GNUC_PATCHLEVEL__, BOOST_TESTED_AT(2))
 70{
 71    typedef typename T::type type;
 72};
 73# else 
 74    : T
 75{
 76};
 77# endif 
 78
 79template< typename T >
 80struct quote_impl<T,false>
 81{
 82    typedef T type;
 83};
 84
 85#else // BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
 86
 87template< bool > struct quote_impl
 88{
 89    template< typename T > struct result_
 90        : T
 91    {
 92    };
 93};
 94
 95template<> struct quote_impl<false>
 96{
 97    template< typename T > struct result_
 98    {
 99        typedef T type;
100    };
101};
102
103#endif 
104
105#define BOOST_PP_ITERATION_PARAMS_1 \
106    (3,(1, BOOST_MPL_LIMIT_METAFUNCTION_ARITY, <boost/mpl/quote.hpp>))
107#include BOOST_PP_ITERATE()
108
109}}
110
111#endif // BOOST_MPL_CFG_NO_QUOTE_TEMPLATE
112
113#endif // BOOST_MPL_CFG_NO_PREPROCESSED_HEADERS
114#endif // BOOST_MPL_QUOTE_HPP_INCLUDED
115
116///// iteration
117
118#else
119#define i_ BOOST_PP_FRAME_ITERATION(1)
120
121template<
122      template< BOOST_MPL_PP_PARAMS(i_, typename P) > class F
123    , typename Tag = void_
124    >
125struct BOOST_PP_CAT(quote,i_)
126{
127    template< BOOST_MPL_PP_PARAMS(i_, typename U) > struct apply
128#if defined(BOOST_MPL_CFG_BCC590_WORKAROUNDS)
129    {
130        typedef typename quote_impl<
131              F< BOOST_MPL_PP_PARAMS(i_, U) >
132            , aux::has_type< F< BOOST_MPL_PP_PARAMS(i_, U) > >::value
133            >::type type;
134    };
135#elif !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION)
136        : quote_impl<
137              F< BOOST_MPL_PP_PARAMS(i_, U) >
138            , aux::has_type< F< BOOST_MPL_PP_PARAMS(i_, U) > >::value
139            >
140    {
141    };
142#else
143        : quote_impl< aux::has_type< F< BOOST_MPL_PP_PARAMS(i_, U) > >::value >
144            ::template result_< F< BOOST_MPL_PP_PARAMS(i_, U) > >
145    {
146    };
147#endif
148};
149
150#undef i_
151#endif // BOOST_PP_IS_ITERATING