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/* Copyright 2003-2015 Joaquin M Lopez Munoz.
* Distributed under the Boost Software License, Version 1.0.
* (See accompanying file LICENSE_1_0.txt or copy at
* http://www.boost.org/LICENSE_1_0.txt)
*
* See http://www.boost.org/libs/multi_index for library home page.
*/
#ifndef BOOST_MULTI_INDEX_DETAIL_RAW_PTR_HPP
#define BOOST_MULTI_INDEX_DETAIL_RAW_PTR_HPP
#if defined(_MSC_VER)
#pragma once
#endif
#include <boost/config.hpp> /* keep it first to prevent nasty warns in MSVC */
#include <boost/mpl/bool.hpp>
#include <boost/type_traits/is_same.hpp>
namespace boost{
namespace multi_index{
namespace detail{
/* gets the underlying pointer of a pointer-like value */
template<typename RawPointer>
inline RawPointer raw_ptr(RawPointer const& p,mpl::true_)
{
return p;
}
template<typename RawPointer,typename Pointer>
inline RawPointer raw_ptr(Pointer const& p,mpl::false_)
{
return p==Pointer(0)?0:&*p;
}
template<typename RawPointer,typename Pointer>
inline RawPointer raw_ptr(Pointer const& p)
{
return raw_ptr<RawPointer>(p,is_same<RawPointer,Pointer>());
}
} /* namespace multi_index::detail */
} /* namespace multi_index */
} /* namespace boost */
#endif
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