epoc32/include/stdapis/boost/mpl/aux_/has_key_impl.hpp
author William Roberts <williamr@symbian.org>
Wed, 31 Mar 2010 12:27:01 +0100
branchSymbian2
changeset 3 e1b950c65cb4
parent 2 epoc32/include/stdapis/boost/mpl/set/aux_/has_key_impl.hpp@2fe1408b6811
child 4 837f303aceeb
permissions -rw-r--r--
Attempt to represent the S^2->S^3 header reorganisation as a series of "hg rename" operations
     1 
     2 #ifndef BOOST_MPL_SET_AUX_HAS_KEY_IMPL_HPP_INCLUDED
     3 #define BOOST_MPL_SET_AUX_HAS_KEY_IMPL_HPP_INCLUDED
     4 
     5 // Copyright Aleksey Gurtovoy 2003-2004
     6 // Copyright David Abrahams 2003-2004
     7 //
     8 // Distributed under the Boost Software License, Version 1.0. 
     9 // (See accompanying file LICENSE_1_0.txt or copy at 
    10 // http://www.boost.org/LICENSE_1_0.txt)
    11 //
    12 // See http://www.boost.org/libs/mpl for documentation.
    13 
    14 // $Source: /cvsroot/boost/boost/boost/mpl/set/aux_/has_key_impl.hpp,v $
    15 // $Date: 2004/10/13 18:23:37 $
    16 // $Revision: 1.7 $
    17 
    18 #include <boost/mpl/set/aux_/tag.hpp>
    19 #include <boost/mpl/has_key_fwd.hpp>
    20 #include <boost/mpl/bool.hpp>
    21 #include <boost/mpl/aux_/overload_names.hpp>
    22 #include <boost/mpl/aux_/static_cast.hpp>
    23 #include <boost/mpl/aux_/yes_no.hpp>
    24 #include <boost/mpl/aux_/type_wrapper.hpp>
    25 #include <boost/mpl/aux_/config/workaround.hpp>
    26 #include <boost/mpl/aux_/config/static_constant.hpp>
    27 
    28 namespace boost { namespace mpl {
    29 
    30 template<>
    31 struct has_key_impl< aux::set_tag >
    32 {
    33     template< typename Set, typename T > struct apply
    34 #if BOOST_WORKAROUND(BOOST_MSVC, BOOST_TESTED_AT(1400)) \
    35     || BOOST_WORKAROUND(__EDG_VERSION__, <= 245)
    36     {
    37         BOOST_STATIC_CONSTANT(bool, value = 
    38               ( sizeof( BOOST_MPL_AUX_OVERLOAD_CALL_IS_MASKED(
    39                     Set
    40                   , BOOST_MPL_AUX_STATIC_CAST(aux::type_wrapper<T>*, 0)
    41                   ) ) == sizeof(aux::no_tag) )
    42             );
    43 
    44         typedef bool_<value> type;
    45 
    46 #else // ISO98 C++
    47         : bool_< 
    48               ( sizeof( BOOST_MPL_AUX_OVERLOAD_CALL_IS_MASKED(
    49                     Set
    50                   , BOOST_MPL_AUX_STATIC_CAST(aux::type_wrapper<T>*, 0)
    51                   ) ) == sizeof(aux::no_tag) )
    52             >
    53     {
    54 #endif
    55     };
    56 };
    57 
    58 }}
    59 
    60 #endif // BOOST_MPL_SET_AUX_HAS_KEY_IMPL_HPP_INCLUDED