projects / ceph.git / blame
| Commit | Line | Data |
|---|---|---|
| 7c673cae FG |
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) | |
| 5 | * | |
| 6 | * See http://www.boost.org/libs/multi_index for library home page. | |
| 7 | */ | |
| 8 | ||
| 9 | #ifndef BOOST_MULTI_INDEX_DETAIL_RAW_PTR_HPP | |
| 10 | #define BOOST_MULTI_INDEX_DETAIL_RAW_PTR_HPP | |
| 11 | ||
| 12 | #if defined(_MSC_VER) | |
| 13 | #pragma once | |
| 14 | #endif | |
| 15 | ||
| 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> | |
| 19 | ||
| 20 | namespace boost{ | |
| 21 | ||
| 22 | namespace multi_index{ | |
| 23 | ||
| 24 | namespace detail{ | |
| 25 | ||
| 26 | /* gets the underlying pointer of a pointer-like value */ | |
| 27 | ||
| 28 | template<typename RawPointer> | |
| 29 | inline RawPointer raw_ptr(RawPointer const& p,mpl::true_) | |
| 30 | { | |
| 31 | return p; | |
| 32 | } | |
| 33 | ||
| 34 | template<typename RawPointer,typename Pointer> | |
| 35 | inline RawPointer raw_ptr(Pointer const& p,mpl::false_) | |
| 36 | { | |
| 37 | return p==Pointer(0)?0:&*p; | |
| 38 | } | |
| 39 | ||
| 40 | template<typename RawPointer,typename Pointer> | |
| 41 | inline RawPointer raw_ptr(Pointer const& p) | |
| 42 | { | |
| 43 | return raw_ptr<RawPointer>(p,is_same<RawPointer,Pointer>()); | |
| 44 | } | |
| 45 | ||
| 46 | } /* namespace multi_index::detail */ | |
| 47 | ||
| 48 | } /* namespace multi_index */ | |
| 49 | ||
| 50 | } /* namespace boost */ | |
| 51 | ||
| 52 | #endif |