#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: is_even.hpp 49267 2008-10-11 06:19:02Z agurtovoy $ | |
// $Date: 2008-10-11 02:19:02 -0400 (Sat, 11 Oct 2008) $ | |
// $Revision: 49267 $ | |
#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 |