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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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