williamr@2: 
williamr@2: #ifndef BOOST_MPL_AUX_VALUE_WKND_HPP_INCLUDED
williamr@2: #define BOOST_MPL_AUX_VALUE_WKND_HPP_INCLUDED
williamr@2: 
williamr@2: // Copyright Aleksey Gurtovoy 2000-2004
williamr@2: //
williamr@2: // Distributed under the Boost Software License, Version 1.0. 
williamr@2: // (See accompanying file LICENSE_1_0.txt or copy at 
williamr@2: // http://www.boost.org/LICENSE_1_0.txt)
williamr@2: //
williamr@2: // See http://www.boost.org/libs/mpl for documentation.
williamr@2: 
williamr@2: // $Source: /cvsroot/boost/boost/boost/mpl/aux_/value_wknd.hpp,v $
williamr@2: // $Date: 2004/12/20 17:51:57 $
williamr@2: // $Revision: 1.14 $
williamr@2: 
williamr@2: #include <boost/mpl/aux_/static_cast.hpp>
williamr@2: #include <boost/mpl/aux_/config/integral.hpp>
williamr@2: #include <boost/mpl/aux_/config/eti.hpp>
williamr@2: #include <boost/mpl/aux_/config/workaround.hpp>
williamr@2: 
williamr@2: #if defined(BOOST_MPL_CFG_BCC_INTEGRAL_CONSTANTS) \
williamr@2:     || defined(BOOST_MPL_CFG_MSVC_60_ETI_BUG)
williamr@2: 
williamr@2: #   include <boost/mpl/int.hpp>
williamr@2: 
williamr@2: namespace boost { namespace mpl { namespace aux {
williamr@2: template< typename C_ > struct value_wknd
williamr@2:     : C_
williamr@2: {
williamr@2: };
williamr@2: 
williamr@2: #if defined(BOOST_MPL_CFG_MSVC_60_ETI_BUG)
williamr@2: template<> struct value_wknd<int>
williamr@2:     : int_<1>
williamr@2: {
williamr@2:     using int_<1>::value;
williamr@2: };
williamr@2: #endif
williamr@2: }}}
williamr@2: 
williamr@2: 
williamr@2: #if !defined(BOOST_MPL_CFG_MSVC_60_ETI_BUG)
williamr@2: #   define BOOST_MPL_AUX_VALUE_WKND(C) \
williamr@2:     ::BOOST_MPL_AUX_ADL_BARRIER_NAMESPACE::aux::value_wknd< C > \
williamr@2: /**/
williamr@2: #    define BOOST_MPL_AUX_MSVC_VALUE_WKND(C) BOOST_MPL_AUX_VALUE_WKND(C)
williamr@2: #else
williamr@2: #   define BOOST_MPL_AUX_VALUE_WKND(C) C
williamr@2: #   define BOOST_MPL_AUX_MSVC_VALUE_WKND(C) \
williamr@2:     ::boost::mpl::aux::value_wknd< C > \
williamr@2: /**/
williamr@2: #endif
williamr@2: 
williamr@2: #else // BOOST_MPL_CFG_BCC_INTEGRAL_CONSTANTS
williamr@2: 
williamr@2: #   define BOOST_MPL_AUX_VALUE_WKND(C) C
williamr@2: #   define BOOST_MPL_AUX_MSVC_VALUE_WKND(C) C
williamr@2: 
williamr@2: #endif
williamr@2: 
williamr@2: #if BOOST_WORKAROUND(__EDG_VERSION__, <= 238)
williamr@2: #   define BOOST_MPL_AUX_NESTED_VALUE_WKND(T, C) \
williamr@2:     BOOST_MPL_AUX_STATIC_CAST(T, C::value) \
williamr@2: /**/
williamr@2: #else
williamr@2: #   define BOOST_MPL_AUX_NESTED_VALUE_WKND(T, C) \
williamr@2:     BOOST_MPL_AUX_VALUE_WKND(C)::value \
williamr@2: /**/
williamr@2: #endif
williamr@2: 
williamr@2: 
williamr@2: namespace boost { namespace mpl { namespace aux {
williamr@2: 
williamr@2: template< typename T > struct value_type_wknd
williamr@2: {
williamr@2:     typedef typename T::value_type type;
williamr@2: };
williamr@2: 
williamr@2: #if defined(BOOST_MPL_CFG_MSVC_ETI_BUG)
williamr@2: template<> struct value_type_wknd<int>
williamr@2: {
williamr@2:     typedef int type;
williamr@2: };
williamr@2: #endif
williamr@2: 
williamr@2: }}}
williamr@2: 
williamr@2: #endif // BOOST_MPL_AUX_VALUE_WKND_HPP_INCLUDED