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1 |
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2 | #ifndef BOOST_MPL_AUX_TYPE_WRAPPER_HPP_INCLUDED
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3 | #define BOOST_MPL_AUX_TYPE_WRAPPER_HPP_INCLUDED
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4 |
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5 | // Copyright Aleksey Gurtovoy 2000-2004
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6 | // Copyright Peter Dimov 2000-2003
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7 | //
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8 | // Distributed under the Boost Software License, Version 1.0.
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9 | // (See accompanying file LICENSE_1_0.txt or copy at
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10 | // http://www.boost.org/LICENSE_1_0.txt)
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11 | //
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12 | // See http://www.boost.org/libs/mpl for documentation.
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13 |
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14 | // $Source: /cvsroot/boost/boost/boost/mpl/aux_/type_wrapper.hpp,v $
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15 | // $Date: 2004/09/28 13:56:59 $
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16 | // $Revision: 1.6 $
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17 |
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18 | #include <boost/mpl/aux_/config/ctps.hpp>
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19 |
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20 | namespace boost { namespace mpl { namespace aux {
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21 |
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22 | template< typename T > struct type_wrapper
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23 | {
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24 | typedef T type;
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25 | };
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26 |
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27 | #if !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION)
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28 | // agurt 08/may/03: a complicated way to extract the wrapped type; need it
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29 | // mostly for the sake of GCC (3.2.x), which ICEs if you try to extract the
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30 | // nested 'type' from 'type_wrapper<T>' when the latter was the result of a
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31 | // 'typeof' expression
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32 | template< typename T > struct wrapped_type;
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33 |
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34 | template< typename T > struct wrapped_type< type_wrapper<T> >
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35 | {
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36 | typedef T type;
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37 | };
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38 | #else
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39 | template< typename W > struct wrapped_type
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40 | {
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41 | typedef typename W::type type;
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42 | };
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43 | #endif
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44 |
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45 | }}}
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46 |
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47 | #endif // BOOST_MPL_AUX_TYPE_WRAPPER_HPP_INCLUDED
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