false_result.hpp

来自「C++的一个好库。。。现在很流行」· HPP 代码 · 共 29 行

//  Copyright David Abrahams 2002. 
//  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_FALSE_RESULT_HPP_INCLUDED
#define BOOST_TT_DETAIL_FALSE_RESULT_HPP_INCLUDED

#include "boost/config.hpp"

namespace boost {
namespace type_traits {

// Utility class which always "returns" false
struct false_result
{
    template <typename T> struct result_
    {
        BOOST_STATIC_CONSTANT(bool, value = false);
    };
};

}} // namespace boost::type_traits

#endif // BOOST_TT_DETAIL_FALSE_RESULT_HPP_INCLUDED