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- #ifndef BOOST_MPL_MATH_IS_EVEN_HPP_INCLUDED
- #define BOOST_MPL_MATH_IS_EVEN_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/bool.hpp>
- #include <boost/mpl/aux_/na_spec.hpp>
- #include <boost/mpl/aux_/lambda_support.hpp>
- #include <boost/mpl/aux_/config/msvc.hpp>
- #include <boost/mpl/aux_/config/workaround.hpp>
- namespace boost { namespace mpl {
- #if BOOST_WORKAROUND(BOOST_MSVC, <= 1300)
- namespace aux
- {
- template <class N>
- struct is_even_base
- {
- enum { value = (N::value % 2) == 0 };
- typedef bool_<value> type;
- };
- }
- #endif
- template<
- typename BOOST_MPL_AUX_NA_PARAM(N)
- >
- struct is_even
- #if BOOST_WORKAROUND(BOOST_MSVC, <= 1300)
- : aux::is_even_base<N>::type
- #else
- : bool_<((N::value % 2) == 0)>
- #endif
- {
- BOOST_MPL_AUX_LAMBDA_SUPPORT(1,is_even,(N))
- };
- BOOST_MPL_AUX_NA_SPEC(1, is_even)
- }}
- #endif // BOOST_MPL_MATH_IS_EVEN_HPP_INCLUDED
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