williamr@2: 
williamr@2: #ifndef BOOST_MPL_AUX_MSVC_ETI_BASE_HPP_INCLUDED
williamr@2: #define BOOST_MPL_AUX_MSVC_ETI_BASE_HPP_INCLUDED
williamr@2: 
williamr@2: // Copyright Aleksey Gurtovoy 2001-2004
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_/msvc_eti_base.hpp,v $
williamr@2: // $Date: 2004/11/28 01:37:05 $
williamr@2: // $Revision: 1.7 $
williamr@2: 
williamr@2: #include <boost/mpl/aux_/is_msvc_eti_arg.hpp>
williamr@2: #include <boost/mpl/aux_/config/eti.hpp>
williamr@2: #include <boost/mpl/aux_/config/gcc.hpp>
williamr@2: #include <boost/mpl/aux_/config/workaround.hpp>
williamr@2: 
williamr@2: namespace boost { namespace mpl { namespace aux {
williamr@2: 
williamr@2: #if defined(BOOST_MPL_CFG_MSVC_70_ETI_BUG)
williamr@2: 
williamr@2: template< bool > struct msvc_eti_base_impl
williamr@2: {
williamr@2:     template< typename T > struct result_
williamr@2:         : T
williamr@2:     {
williamr@2:         typedef T type;
williamr@2:     };
williamr@2: };
williamr@2: 
williamr@2: template<> struct msvc_eti_base_impl<true>
williamr@2: {
williamr@2:     template< typename T > struct result_
williamr@2:     {
williamr@2:         typedef result_ type;
williamr@2:         typedef result_ first;
williamr@2:         typedef result_ second;
williamr@2:         typedef result_ tag;
williamr@2:         enum { value = 0 };
williamr@2:     };
williamr@2: };
williamr@2: 
williamr@2: template< typename T > struct msvc_eti_base
williamr@2:     : msvc_eti_base_impl< is_msvc_eti_arg<T>::value >
williamr@2:         ::template result_<T>
williamr@2: {
williamr@2: };
williamr@2: 
williamr@2: #else // !BOOST_MPL_CFG_MSVC_70_ETI_BUG
williamr@2: 
williamr@2: template< typename T > struct msvc_eti_base
williamr@2:     : T
williamr@2: {
williamr@2: #if BOOST_WORKAROUND(BOOST_MPL_CFG_GCC, BOOST_TESTED_AT(0x0304))
williamr@2:     msvc_eti_base();
williamr@2: #endif
williamr@2:     typedef T type;
williamr@2: };
williamr@2: 
williamr@2: #endif 
williamr@2: 
williamr@2: template<> struct msvc_eti_base<int>
williamr@2: {
williamr@2:     typedef msvc_eti_base type;
williamr@2:     typedef msvc_eti_base first;
williamr@2:     typedef msvc_eti_base second;
williamr@2:     typedef msvc_eti_base tag;
williamr@2:     enum { value = 0 };
williamr@2: };
williamr@2: 
williamr@2: }}}
williamr@2: 
williamr@2: #endif // BOOST_MPL_AUX_MSVC_ETI_BASE_HPP_INCLUDED