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os/ossrv/ossrv_pub/boost_apis/boost/mpl/quote.hpp
author sl@SLION-WIN7.fritz.box
Fri, 15 Jun 2012 03:10:57 +0200
changeset 0 bde4ae8d615e
permissions -rw-r--r--
First public contribution. 
     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 2000-2004

    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 // $Source: /cvsroot/boost/boost/boost/mpl/quote.hpp,v $

    18 // $Date: 2006/05/03 03:27:58 $

    19 // $Revision: 1.5.14.2 $

    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/ttp.hpp>

    27 

    28 #if defined(BOOST_MPL_CFG_NO_TEMPLATE_TEMPLATE_PARAMETERS)

    29 #   define BOOST_MPL_CFG_NO_QUOTE_TEMPLATE

    30 #endif

    31 

    32 #if !defined(BOOST_MPL_CFG_NO_IMPLICIT_METAFUNCTIONS) \

    33     && defined(BOOST_MPL_CFG_NO_HAS_XXX)

    34 #   define BOOST_MPL_CFG_NO_IMPLICIT_METAFUNCTIONS

    35 #endif

    36 

    37 #include <boost/mpl/aux_/config/use_preprocessed.hpp>

    38 

    39 #if !defined(BOOST_MPL_CFG_NO_PREPROCESSED_HEADERS) \

    40  && !defined(BOOST_MPL_PREPROCESSING_MODE)

    41 

    42 #   define BOOST_MPL_PREPROCESSED_HEADER quote.hpp

    43 #   include <boost/mpl/aux_/include_preprocessed.hpp>

    44 

    45 #else

    46 

    47 #   include <boost/mpl/limits/arity.hpp>

    48 #   include <boost/mpl/aux_/preprocessor/params.hpp>

    49 #   include <boost/mpl/aux_/config/ctps.hpp>

    50 #   include <boost/mpl/aux_/config/workaround.hpp>

    51 

    52 #   include <boost/preprocessor/iterate.hpp>

    53 #   include <boost/preprocessor/cat.hpp>

    54 

    55 #if !defined(BOOST_MPL_CFG_NO_QUOTE_TEMPLATE)

    56 

    57 namespace boost { namespace mpl {

    58 

    59 #if !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION)

    60 

    61 template< typename T, bool has_type_ >

    62 struct quote_impl

    63 // GCC has a problem with metafunction forwarding when T is a

    64 // specialization of a template called 'type'.

    65 # if BOOST_WORKAROUND(__GNUC__, BOOST_TESTED_AT(4)) \

    66     && BOOST_WORKAROUND(__GNUC_MINOR__, BOOST_TESTED_AT(0)) \

    67     && BOOST_WORKAROUND(__GNUC_PATCHLEVEL__, BOOST_TESTED_AT(2))

    68 {

    69     typedef typename T::type type;

    70 };

    71 # else 

    72     : T

    73 {

    74 };

    75 # endif 

    76 

    77 template< typename T >

    78 struct quote_impl<T,false>

    79 {

    80     typedef T type;

    81 };

    82 

    83 #else // BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION

    84 

    85 template< bool > struct quote_impl

    86 {

    87     template< typename T > struct result_

    88         : T

    89     {

    90     };

    91 };

    92 

    93 template<> struct quote_impl<false>

    94 {

    95     template< typename T > struct result_

    96     {

    97         typedef T type;

    98     };

    99 };

   100 

   101 #endif 

   102 

   103 #define BOOST_PP_ITERATION_PARAMS_1 \

   104     (3,(1, BOOST_MPL_LIMIT_METAFUNCTION_ARITY, <boost/mpl/quote.hpp>))

   105 #include BOOST_PP_ITERATE()

   106 

   107 }}

   108 

   109 #endif // BOOST_MPL_CFG_NO_QUOTE_TEMPLATE

   110 

   111 #endif // BOOST_MPL_CFG_NO_PREPROCESSED_HEADERS

   112 #endif // BOOST_MPL_QUOTE_HPP_INCLUDED

   113 

   114 ///// iteration

   115 

   116 #else

   117 #define i_ BOOST_PP_FRAME_ITERATION(1)

   118 

   119 template<

   120       template< BOOST_MPL_PP_PARAMS(i_, typename P) > class F

   121     , typename Tag = void_

   122     >

   123 struct BOOST_PP_CAT(quote,i_)

   124 {

   125     template< BOOST_MPL_PP_PARAMS(i_, typename U) > struct apply

   126 #if !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION)

   127         : quote_impl<

   128               F< BOOST_MPL_PP_PARAMS(i_, U) >

   129             , aux::has_type< F< BOOST_MPL_PP_PARAMS(i_, U) > >::value

   130             >

   131 #else

   132         : quote_impl< aux::has_type< F< BOOST_MPL_PP_PARAMS(i_, U) > >::value >

   133             ::template result_< F< BOOST_MPL_PP_PARAMS(i_, U) > >

   134 #endif

   135     {

   136     };

   137 };

   138 

   139 #undef i_

   140 #endif // BOOST_PP_IS_ITERATING
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