pointee.hpp

来自「C++的一个好库。。。现在很流行」· HPP 代码 · 共 36 行

// Copyright David Abrahams 2002.
// 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)
#ifndef POINTEE_DWA2002323_HPP
# define POINTEE_DWA2002323_HPP

# include <boost/type_traits/object_traits.hpp>

namespace boost { namespace python { namespace detail { 

template <bool is_ptr = true>
struct pointee_impl
{
    template <class T> struct apply : remove_pointer<T> {};
};

template <>
struct pointee_impl<false>
{
    template <class T> struct apply
    {
        typedef typename T::element_type type;
    };
};

template <class T>
struct pointee
    : pointee_impl<is_pointer<T>::value>::template apply<T>
{
};

}}} // namespace boost::python::detail

#endif // POINTEE_DWA2002323_HPP