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/src/contrib/boost/mpl/aux_/unwrap.hpp

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C++ Header | 47 lines | 26 code | 10 blank | 11 comment | 0 complexity | a30133be03cd957e73aac18feea13111 MD5 | raw file
 1
 2#ifndef BOOST_MPL_AUX_UNWRAP_HPP_INCLUDED
 3#define BOOST_MPL_AUX_UNWRAP_HPP_INCLUDED
 4
 5// Copyright Peter Dimov and Multi Media Ltd 2001, 2002
 6// Copyright David Abrahams 2001
 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: unwrap.hpp 49267 2008-10-11 06:19:02Z agurtovoy $
15// $Date: 2008-10-11 02:19:02 -0400 (Sat, 11 Oct 2008) $
16// $Revision: 49267 $
17
18#include <boost/ref.hpp>
19
20namespace boost { namespace mpl { namespace aux {
21
22template< typename F >
23inline
24F& unwrap(F& f, long)
25{
26    return f;
27}
28
29template< typename F >
30inline
31F&
32unwrap(reference_wrapper<F>& f, int)
33{
34    return f;
35}
36
37template< typename F >
38inline
39F&
40unwrap(reference_wrapper<F> const& f, int)
41{
42    return f;
43}
44
45}}}
46
47#endif // BOOST_MPL_AUX_UNWRAP_HPP_INCLUDED