| |
| #ifndef BOOST_MPL_AUX_TYPE_WRAPPER_HPP_INCLUDED |
| #define BOOST_MPL_AUX_TYPE_WRAPPER_HPP_INCLUDED |
| |
| // Copyright Aleksey Gurtovoy 2000-2004 |
| // Copyright Peter Dimov 2000-2003 |
| // |
| // 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) |
| // |
| // See http://www.boost.org/libs/mpl for documentation. |
| |
| // $Id$ |
| // $Date$ |
| // $Revision$ |
| |
| #include <boost/mpl/aux_/config/ctps.hpp> |
| |
| namespace boost { namespace mpl { namespace aux { |
| |
| template< typename T > struct type_wrapper |
| { |
| typedef T type; |
| }; |
| |
| #if !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION) |
| // agurt 08/may/03: a complicated way to extract the wrapped type; need it |
| // mostly for the sake of GCC (3.2.x), which ICEs if you try to extract the |
| // nested 'type' from 'type_wrapper<T>' when the latter was the result of a |
| // 'typeof' expression |
| template< typename T > struct wrapped_type; |
| |
| template< typename T > struct wrapped_type< type_wrapper<T> > |
| { |
| typedef T type; |
| }; |
| #else |
| template< typename W > struct wrapped_type |
| { |
| typedef typename W::type type; |
| }; |
| #endif |
| |
| }}} |
| |
| #endif // BOOST_MPL_AUX_TYPE_WRAPPER_HPP_INCLUDED |
