| // Boost.TypeErasure library |
| // |
| // Copyright 2011 Steven Watanabe |
| // |
| // 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) |
| // |
| // $Id$ |
| |
| #ifndef BOOST_TYPE_ERASURE_DERIVED_HPP_INCLUDED |
| #define BOOST_TYPE_ERASURE_DERIVED_HPP_INCLUDED |
| |
| namespace boost { |
| namespace type_erasure { |
| |
| /** |
| * A metafunction which returns the full @ref any type, |
| * when given any of its base classes. This is primarily |
| * intended to be used when implementing @ref concept_interface. |
| * |
| * \see rebind_any, as_param |
| */ |
| template<class T> |
| struct derived |
| { |
| #ifdef BOOST_TYPE_ERASURE_DOXYGEN |
| typedef detail::unspecified type; |
| #else |
| typedef typename T::_boost_type_erasure_derived_type type; |
| #endif |
| }; |
| |
| } |
| } |
| |
| #endif |
