ice_eq.hpp

C++的一个好库。。。现在很流行

//  (C) Copyright John Maddock and Steve Cleary 2000.
//  Use, modification and distribution are subject to 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/type_traits for most recent version including documentation.

#ifndef BOOST_TT_DETAIL_ICE_EQ_HPP_INCLUDED
#define BOOST_TT_DETAIL_ICE_EQ_HPP_INCLUDED

#include "boost/config.hpp"

namespace boost {
namespace type_traits {

template <int b1, int b2>
struct ice_eq
{
    BOOST_STATIC_CONSTANT(bool, value = (b1 == b2));
};

template <int b1, int b2>
struct ice_ne
{
    BOOST_STATIC_CONSTANT(bool, value = (b1 != b2));
};

#ifndef BOOST_NO_INCLASS_MEMBER_INITIALIZATION
template <int b1, int b2> bool const ice_eq<b1,b2>::value;
template <int b1, int b2> bool const ice_ne<b1,b2>::value;
#endif

} // namespace type_traits
} // namespace boost

#endif // BOOST_TT_DETAIL_ICE_EQ_HPP_INCLUDED