| 1 | |
|---|
| 2 | #ifndef BOOST_MPL_AUX_TYPE_WRAPPER_HPP_INCLUDED |
|---|
| 3 | #define BOOST_MPL_AUX_TYPE_WRAPPER_HPP_INCLUDED |
|---|
| 4 | |
|---|
| 5 | // Copyright Aleksey Gurtovoy 2000-2004 |
|---|
| 6 | // Copyright Peter Dimov 2000-2003 |
|---|
| 7 | // |
|---|
| 8 | // Distributed under the Boost Software License, Version 1.0. |
|---|
| 9 | // (See accompanying file LICENSE_1_0.txt or copy at |
|---|
| 10 | // http://www.boost.org/LICENSE_1_0.txt) |
|---|
| 11 | // |
|---|
| 12 | // See http://www.boost.org/libs/mpl for documentation. |
|---|
| 13 | |
|---|
| 14 | // $Id$ |
|---|
| 15 | // $Date$ |
|---|
| 16 | // $Revision$ |
|---|
| 17 | |
|---|
| 18 | #include <boost/mpl/aux_/config/ctps.hpp> |
|---|
| 19 | |
|---|
| 20 | namespace boost { namespace mpl { namespace aux { |
|---|
| 21 | |
|---|
| 22 | template< typename T > struct type_wrapper |
|---|
| 23 | { |
|---|
| 24 | typedef T type; |
|---|
| 25 | }; |
|---|
| 26 | |
|---|
| 27 | #if !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION) |
|---|
| 28 | // agurt 08/may/03: a complicated way to extract the wrapped type; need it |
|---|
| 29 | // mostly for the sake of GCC (3.2.x), which ICEs if you try to extract the |
|---|
| 30 | // nested 'type' from 'type_wrapper<T>' when the latter was the result of a |
|---|
| 31 | // 'typeof' expression |
|---|
| 32 | template< typename T > struct wrapped_type; |
|---|
| 33 | |
|---|
| 34 | template< typename T > struct wrapped_type< type_wrapper<T> > |
|---|
| 35 | { |
|---|
| 36 | typedef T type; |
|---|
| 37 | }; |
|---|
| 38 | #else |
|---|
| 39 | template< typename W > struct wrapped_type |
|---|
| 40 | { |
|---|
| 41 | typedef typename W::type type; |
|---|
| 42 | }; |
|---|
| 43 | #endif |
|---|
| 44 | |
|---|
| 45 | }}} |
|---|
| 46 | |
|---|
| 47 | #endif // BOOST_MPL_AUX_TYPE_WRAPPER_HPP_INCLUDED |
|---|
| 48 | |
|---|
