forked from boostorg/mpl
47 lines
1.1 KiB
C++
47 lines
1.1 KiB
C++
//-----------------------------------------------------------------------------
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// boost mpl/aux_/unwrap.hpp header file
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// See http://www.boost.org for updates, documentation, and revision history.
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//-----------------------------------------------------------------------------
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//
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// Copyright (c) 2001, 2002 Peter Dimov and Multi Media Ltd.
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// Copyright (c) 2001 David Abrahams
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//
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// Permission to copy, use, modify, sell and distribute this software
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// is granted provided this copyright notice appears in all copies.
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// This software is provided "as is" without express or implied
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// warranty, and with no claim as to its suitability for any purpose.
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#ifndef BOOST_MPL_AUX_UNWRAP_HPP_INCLUDED
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#define BOOST_MPL_AUX_UNWRAP_HPP_INCLUDED
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#include "boost/ref.hpp"
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namespace boost { namespace mpl { namespace aux {
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template< typename F >
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inline
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F& unwrap(F& f, long)
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{
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return f;
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}
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template< typename F >
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inline
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F&
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unwrap(reference_wrapper<F>& f, int)
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{
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return f;
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}
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template< typename F >
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inline
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F&
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unwrap(reference_wrapper<F> const& f, int)
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{
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return f;
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}
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}}} // namespace boost::mpl::aux
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#endif // BOOST_MPL_AUX_UNWRAP_HPP_INCLUDED
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