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