Chris@16: 
Chris@16: #ifndef BOOST_MPL_MATH_IS_EVEN_HPP_INCLUDED
Chris@16: #define BOOST_MPL_MATH_IS_EVEN_HPP_INCLUDED
Chris@16: 
Chris@16: // Copyright Aleksey Gurtovoy 2000-2004
Chris@16: //
Chris@16: // Distributed under the Boost Software License, Version 1.0. 
Chris@16: // (See accompanying file LICENSE_1_0.txt or copy at 
Chris@16: // http://www.boost.org/LICENSE_1_0.txt)
Chris@16: //
Chris@16: // See http://www.boost.org/libs/mpl for documentation.
Chris@16: 
Chris@101: // $Id$
Chris@101: // $Date$
Chris@101: // $Revision$
Chris@16: 
Chris@16: #include <boost/mpl/bool.hpp>
Chris@16: #include <boost/mpl/aux_/na_spec.hpp>
Chris@16: #include <boost/mpl/aux_/lambda_support.hpp>
Chris@16: #include <boost/mpl/aux_/config/msvc.hpp>
Chris@16: #include <boost/mpl/aux_/config/workaround.hpp>
Chris@16: 
Chris@16: namespace boost { namespace mpl {
Chris@16: 
Chris@16: #if BOOST_WORKAROUND(BOOST_MSVC, <= 1300)
Chris@16: namespace aux
Chris@16: {
Chris@16:   template <class N>
Chris@16:   struct is_even_base
Chris@16:   {
Chris@16:       enum { value = (N::value % 2) == 0 };
Chris@16:       typedef bool_<value> type;
Chris@16:   };
Chris@16: }
Chris@16: #endif 
Chris@16: 
Chris@16: template<
Chris@16:       typename BOOST_MPL_AUX_NA_PARAM(N)
Chris@16:     >
Chris@16: struct is_even
Chris@16: #if BOOST_WORKAROUND(BOOST_MSVC, <= 1300)
Chris@16:   : aux::is_even_base<N>::type
Chris@16: #else
Chris@16:   : bool_<((N::value % 2) == 0)>
Chris@16: #endif 
Chris@16: {
Chris@16:     BOOST_MPL_AUX_LAMBDA_SUPPORT(1,is_even,(N))
Chris@16: };
Chris@16: 
Chris@16: BOOST_MPL_AUX_NA_SPEC(1, is_even)
Chris@16: 
Chris@16: }}
Chris@16: 
Chris@16: #endif // BOOST_MPL_MATH_IS_EVEN_HPP_INCLUDED