author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
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#ifndef BOOST_MPL_MATH_IS_EVEN_HPP_INCLUDED |
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#define BOOST_MPL_MATH_IS_EVEN_HPP_INCLUDED |
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// Copyright Aleksey Gurtovoy 2000-2004 |
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// |
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// Distributed under the Boost Software License, Version 1.0. |
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// (See accompanying file LICENSE_1_0.txt or copy at |
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// http://www.boost.org/LICENSE_1_0.txt) |
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// |
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// See http://www.boost.org/libs/mpl for documentation. |
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// $Source: /cvsroot/boost/boost/boost/mpl/math/is_even.hpp,v $ |
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// $Date: 2004/09/02 15:41:01 $ |
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// $Revision: 1.5 $ |
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#include <boost/mpl/bool.hpp> |
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#include <boost/mpl/aux_/na_spec.hpp> |
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#include <boost/mpl/aux_/lambda_support.hpp> |
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#include <boost/mpl/aux_/config/msvc.hpp> |
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#include <boost/mpl/aux_/config/workaround.hpp> |
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namespace boost { namespace mpl { |
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#if BOOST_WORKAROUND(BOOST_MSVC, <= 1300) |
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namespace aux |
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{ |
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template <class N> |
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struct is_even_base |
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{ |
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enum { value = (N::value % 2) == 0 }; |
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typedef bool_<value> type; |
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}; |
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} |
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#endif |
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template< |
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typename BOOST_MPL_AUX_NA_PARAM(N) |
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> |
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struct is_even |
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#if BOOST_WORKAROUND(BOOST_MSVC, <= 1300) |
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: aux::is_even_base<N>::type |
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#else |
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: bool_<((N::value % 2) == 0)> |
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#endif |
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{ |
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BOOST_MPL_AUX_LAMBDA_SUPPORT(1,is_even,(N)) |
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}; |
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BOOST_MPL_AUX_NA_SPEC(1, is_even) |
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}} |
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#endif // BOOST_MPL_MATH_IS_EVEN_HPP_INCLUDED |