2010-07-26 17:06:36 +00:00
|
|
|
|
|
|
|
|
#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
|
