has_rebind.hpp

来自「boost库提供标准的C++ API 配合dev c++使用,功能更加强大」· HPP 代码 · 共 42 行

//-----------------------------------------------------------------------------
// boost mpl/aux_/has_rebind.hpp header file
// See http://www.boost.org for updates, documentation, and revision history.
//-----------------------------------------------------------------------------
//
// Copyright (c) 2002
// Aleksey Gurtovoy
//
// Permission to use, copy, modify, distribute and sell this software
// and its documentation for any purpose is hereby granted without fee, 
// provided that the above copyright notice appears in all copies and 
// that both the copyright notice and this permission notice appear in 
// supporting documentation. No representations are made about the 
// suitability of this software for any purpose. It is provided "as is" 
// without express or implied warranty.

#ifndef BOOST_MPL_AUX_HAS_REBIND_HPP_INCLUDED
#define BOOST_MPL_AUX_HAS_REBIND_HPP_INCLUDED

#include "boost/mpl/aux_/has_xxx.hpp"
#include "boost/mpl/if.hpp"
#include "boost/mpl/bool.hpp"
#include "boost/type_traits/is_class.hpp"

namespace boost { namespace mpl { namespace aux {

BOOST_MPL_HAS_XXX_TRAIT_NAMED_DEF(has_rebind_impl, rebind, false)

template< typename T >
struct has_rebind
    : if_c< 
          ::boost::is_class<T>::value
        , has_rebind_impl<T>
        , bool_<false>
        >::type
{
};

}}}

#endif // BOOST_MPL_AUX_HAS_REBIND_HPP_INCLUDED