49 lines
1.2 KiB
C++
49 lines
1.2 KiB
C++
// Copyright Peter Dimov and David Abrahams 2002.
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// Distributed under the Boost Software License, Version 1.0. (See
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// accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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#ifndef GET_POINTER_DWA20021219_HPP
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#define GET_POINTER_DWA20021219_HPP
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#include <boost/config.hpp>
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// In order to avoid circular dependencies with Boost.TR1
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// we make sure that our include of <memory> doesn't try to
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// pull in the TR1 headers: that's why we use this header
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// rather than including <memory> directly:
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#include <boost/config/no_tr1/memory.hpp> // std::auto_ptr
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namespace boost {
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// get_pointer(p) extracts a ->* capable pointer from p
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template<class T> T * get_pointer(T * p)
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{
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return p;
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}
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// get_pointer(shared_ptr<T> const & p) has been moved to shared_ptr.hpp
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template<class T> T * get_pointer(std::auto_ptr<T> const& p)
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{
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return p.get();
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}
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#if !defined( BOOST_NO_CXX11_SMART_PTR )
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template<class T> T * get_pointer( std::unique_ptr<T> const& p )
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{
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return p.get();
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}
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template<class T> T * get_pointer( std::shared_ptr<T> const& p )
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{
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return p.get();
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}
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#endif
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} // namespace boost
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#endif // GET_POINTER_DWA20021219_HPP
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