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90 lines
2.0 KiB
C++
90 lines
2.0 KiB
C++
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#ifndef BOOST_MPL_AUX_VALUE_WKND_HPP_INCLUDED
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#define BOOST_MPL_AUX_VALUE_WKND_HPP_INCLUDED
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// Copyright Aleksey Gurtovoy 2000-2004
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//
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// Distributed under the Boost Software License, Version 1.0.
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// (See accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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//
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// See http://www.boost.org/libs/mpl for documentation.
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// $Id$
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// $Date$
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// $Revision$
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#include <boost/mpl/aux_/static_cast.hpp>
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#include <boost/mpl/aux_/config/integral.hpp>
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#include <boost/mpl/aux_/config/eti.hpp>
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#include <boost/mpl/aux_/config/workaround.hpp>
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#if defined(BOOST_MPL_CFG_BCC_INTEGRAL_CONSTANTS) \
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|| defined(BOOST_MPL_CFG_MSVC_60_ETI_BUG)
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# include <boost/mpl/int.hpp>
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namespace boost { namespace mpl { namespace aux {
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template< typename C_ > struct value_wknd
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: C_
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{
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};
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#if defined(BOOST_MPL_CFG_MSVC_60_ETI_BUG)
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template<> struct value_wknd<int>
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: int_<1>
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{
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using int_<1>::value;
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};
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#endif
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}}}
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#if !defined(BOOST_MPL_CFG_MSVC_60_ETI_BUG)
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# define BOOST_MPL_AUX_VALUE_WKND(C) \
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::BOOST_MPL_AUX_ADL_BARRIER_NAMESPACE::aux::value_wknd< C > \
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/**/
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# define BOOST_MPL_AUX_MSVC_VALUE_WKND(C) BOOST_MPL_AUX_VALUE_WKND(C)
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#else
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# define BOOST_MPL_AUX_VALUE_WKND(C) C
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# define BOOST_MPL_AUX_MSVC_VALUE_WKND(C) \
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::boost::mpl::aux::value_wknd< C > \
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/**/
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#endif
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#else // BOOST_MPL_CFG_BCC_INTEGRAL_CONSTANTS
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# define BOOST_MPL_AUX_VALUE_WKND(C) C
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# define BOOST_MPL_AUX_MSVC_VALUE_WKND(C) C
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#endif
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#if BOOST_WORKAROUND(__EDG_VERSION__, <= 238)
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# define BOOST_MPL_AUX_NESTED_VALUE_WKND(T, C) \
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BOOST_MPL_AUX_STATIC_CAST(T, C::value) \
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/**/
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#else
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# define BOOST_MPL_AUX_NESTED_VALUE_WKND(T, C) \
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BOOST_MPL_AUX_VALUE_WKND(C)::value \
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/**/
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#endif
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namespace boost { namespace mpl { namespace aux {
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template< typename T > struct value_type_wknd
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{
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typedef typename T::value_type type;
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};
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#if defined(BOOST_MPL_CFG_MSVC_ETI_BUG)
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template<> struct value_type_wknd<int>
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{
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typedef int type;
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};
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#endif
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}}}
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#endif // BOOST_MPL_AUX_VALUE_WKND_HPP_INCLUDED
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