1 /* Copyright 2003-2015 Joaquin M Lopez Munoz.
2 * Distributed under the Boost Software License, Version 1.0.
3 * (See accompanying file LICENSE_1_0.txt or copy at
4 * http://www.boost.org/LICENSE_1_0.txt)
6 * See http://www.boost.org/libs/multi_index for library home page.
9 #ifndef BOOST_MULTI_INDEX_DETAIL_RAW_PTR_HPP
10 #define BOOST_MULTI_INDEX_DETAIL_RAW_PTR_HPP
16 #include <boost/config.hpp> /* keep it first to prevent nasty warns in MSVC */
17 #include <boost/mpl/bool.hpp>
18 #include <boost/type_traits/is_same.hpp>
22 namespace multi_index{
26 /* gets the underlying pointer of a pointer-like value */
28 template<typename RawPointer>
29 inline RawPointer raw_ptr(RawPointer const& p,mpl::true_)
34 template<typename RawPointer,typename Pointer>
35 inline RawPointer raw_ptr(Pointer const& p,mpl::false_)
37 return p==Pointer(0)?0:&*p;
40 template<typename RawPointer,typename Pointer>
41 inline RawPointer raw_ptr(Pointer const& p)
43 return raw_ptr<RawPointer>(p,is_same<RawPointer,Pointer>());
46 } /* namespace multi_index::detail */
48 } /* namespace multi_index */
50 } /* namespace boost */