38 lines
852 B
C++
38 lines
852 B
C++
// Boost.TypeErasure library
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//
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// Copyright 2011 Steven Watanabe
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//
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// Distributed under the Boost Software License Version 1.0. (See
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// accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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//
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// $Id: derived.hpp 80974 2012-10-13 00:02:25Z steven_watanabe $
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#ifndef BOOST_TYPE_ERASURE_DERIVED_HPP_INCLUDED
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#define BOOST_TYPE_ERASURE_DERIVED_HPP_INCLUDED
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namespace boost {
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namespace type_erasure {
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/**
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* A metafunction which returns the full @ref any type,
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* when given any of its base classes. This is primarily
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* intended to be used when implementing @ref concept_interface.
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*
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* \see rebind_any, as_param
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*/
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template<class T>
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struct derived
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{
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#ifdef BOOST_TYPE_ERASURE_DOXYGEN
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typedef detail::unspecified type;
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#else
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typedef typename T::_boost_type_erasure_derived_type type;
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#endif
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};
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}
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}
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#endif
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