1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/epoc32/include/stdapis/boost/ptr_container/detail/static_move_ptr.hpp Tue Mar 16 16:12:26 2010 +0000
1.3 @@ -0,0 +1,212 @@
1.4 +// (C) Copyright Thorsten Ottosen 2005.
1.5 +// (C) Copyright Jonathan Turkanis 2004.
1.6 +// (C) Copyright Daniel Wallin 2004.
1.7 +// Distributed under the Boost Software License, Version 1.0. (See accompanying
1.8 +// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt.)
1.9 +
1.10 +// Implementation of the move_ptr from the "Move Proposal"
1.11 +// (http://std.dkuug.dk/jtc1/sc22/wg21/docs/papers/2002/n1377.htm)
1.12 +// enhanced to support custom deleters and safe boolean conversions.
1.13 +//
1.14 +// The implementation is based on an implementation by Daniel Wallin, at
1.15 +// "http://aspn.activestate.com/ASPN/Mail/Message/Attachments/boost/
1.16 +// 400DC271.1060903@student.umu.se/move_ptr.hpp". The current was adapted
1.17 +// by Jonathan Turkanis to incorporating ideas of Howard Hinnant and
1.18 +// Rani Sharoni.
1.19 +
1.20 +#ifndef BOOST_STATIC_MOVE_PTR_HPP_INCLUDED
1.21 +#define BOOST_STATIC_MOVE_PTR_HPP_INCLUDED
1.22 +
1.23 +#include <boost/config.hpp> // Member template friends, put size_t in std.
1.24 +#include <algorithm> // swap.
1.25 +#include <cstddef> // size_t
1.26 +#include <boost/compressed_pair.hpp>
1.27 +#include <boost/ptr_container/detail/default_deleter.hpp>
1.28 +#include <boost/ptr_container/detail/is_convertible.hpp>
1.29 +#include <boost/ptr_container/detail/move.hpp>
1.30 +#include <boost/static_assert.hpp>
1.31 +#include <boost/type_traits/add_reference.hpp>
1.32 +#include <boost/type_traits/is_array.hpp>
1.33 +
1.34 +#if defined(BOOST_MSVC)
1.35 +#pragma warning(push)
1.36 +#pragma warning(disable:4521) // Multiple copy constuctors.
1.37 +#endif
1.38 +
1.39 +namespace boost { namespace ptr_container_detail {
1.40 +
1.41 +
1.42 +template< typename T,
1.43 + typename Deleter =
1.44 + move_ptrs::default_deleter<T> >
1.45 +class static_move_ptr
1.46 +{
1.47 +public:
1.48 +
1.49 + typedef typename remove_bounds<T>::type element_type;
1.50 + typedef Deleter deleter_type;
1.51 +
1.52 +private:
1.53 +
1.54 + struct safe_bool_helper { int x; };
1.55 + typedef int safe_bool_helper::* safe_bool;
1.56 + typedef boost::compressed_pair<element_type*, Deleter> impl_type;
1.57 +
1.58 +public:
1.59 + typedef typename impl_type::second_reference deleter_reference;
1.60 + typedef typename impl_type::second_const_reference deleter_const_reference;
1.61 +
1.62 + // Constructors
1.63 +
1.64 + static_move_ptr() : impl_(0) { }
1.65 +
1.66 + static_move_ptr(const static_move_ptr& p)
1.67 + : impl_(p.get(), p.get_deleter())
1.68 + {
1.69 + const_cast<static_move_ptr&>(p).release();
1.70 + }
1.71 +
1.72 +#if BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x564))
1.73 + static_move_ptr( const move_ptrs::move_source<static_move_ptr<T,Deleter> >& src )
1.74 +#else
1.75 + static_move_ptr( const move_ptrs::move_source<static_move_ptr>& src )
1.76 +#endif
1.77 + : impl_(src.ptr().get(), src.ptr().get_deleter())
1.78 + {
1.79 + src.ptr().release();
1.80 + }
1.81 +
1.82 + template<typename TT>
1.83 + explicit static_move_ptr(TT* tt)
1.84 + : impl_(tt, Deleter())
1.85 + { }
1.86 +
1.87 + // Destructor
1.88 +
1.89 + ~static_move_ptr() { if (ptr()) get_deleter()(ptr()); }
1.90 +
1.91 + // Assignment
1.92 +
1.93 + static_move_ptr& operator=(static_move_ptr rhs)
1.94 + {
1.95 + rhs.swap(*this);
1.96 + return *this;
1.97 + }
1.98 +
1.99 + // Smart pointer interface
1.100 +
1.101 + element_type* get() const { return ptr(); }
1.102 +
1.103 + element_type& operator*()
1.104 + {
1.105 + /*BOOST_STATIC_ASSERT(!is_array);*/ return *ptr();
1.106 + }
1.107 +
1.108 + const element_type& operator*() const
1.109 + {
1.110 + /*BOOST_STATIC_ASSERT(!is_array);*/ return *ptr();
1.111 + }
1.112 +
1.113 + element_type* operator->()
1.114 + {
1.115 + /*BOOST_STATIC_ASSERT(!is_array);*/ return ptr();
1.116 + }
1.117 +
1.118 + const element_type* operator->() const
1.119 + {
1.120 + /*BOOST_STATIC_ASSERT(!is_array);*/ return ptr();
1.121 + }
1.122 +
1.123 +
1.124 + element_type* release()
1.125 + {
1.126 + element_type* result = ptr();
1.127 + ptr() = 0;
1.128 + return result;
1.129 + }
1.130 +
1.131 + void reset()
1.132 + {
1.133 + if (ptr()) get_deleter()(ptr());
1.134 + ptr() = 0;
1.135 + }
1.136 +
1.137 + template<typename TT>
1.138 + void reset(TT* tt)
1.139 + {
1.140 + static_move_ptr(tt).swap(*this);
1.141 + }
1.142 +
1.143 + template<typename TT, typename DD>
1.144 + void reset(TT* tt, DD dd)
1.145 + {
1.146 + static_move_ptr(tt, dd).swap(*this);
1.147 + }
1.148 +
1.149 + operator safe_bool() const { return ptr() ? &safe_bool_helper::x : 0; }
1.150 +
1.151 + void swap(static_move_ptr& p) { impl_.swap(p.impl_); }
1.152 +
1.153 + deleter_reference get_deleter() { return impl_.second(); }
1.154 +
1.155 + deleter_const_reference get_deleter() const { return impl_.second(); }
1.156 +private:
1.157 + template<typename TT, typename DD>
1.158 + void check(const static_move_ptr<TT, DD>& ptr)
1.159 + {
1.160 + typedef move_ptrs::is_smart_ptr_convertible<TT, T> convertible;
1.161 + BOOST_STATIC_ASSERT(convertible::value);
1.162 + }
1.163 +
1.164 +#if defined(BOOST_NO_FUNCTION_TEMPLATE_ORDERING) || defined(BOOST_NO_SFINAE)
1.165 +// give up on this behavior
1.166 +#else
1.167 +
1.168 + template<typename Ptr> struct cant_move_from_const;
1.169 +
1.170 + template<typename TT, typename DD>
1.171 + struct cant_move_from_const< const static_move_ptr<TT, DD> > {
1.172 + typedef typename static_move_ptr<TT, DD>::error type;
1.173 + };
1.174 +
1.175 + template<typename Ptr>
1.176 + static_move_ptr(Ptr&, typename cant_move_from_const<Ptr>::type = 0);
1.177 +
1.178 +
1.179 +public:
1.180 + static_move_ptr(static_move_ptr&);
1.181 +
1.182 +
1.183 +private:
1.184 + template<typename TT, typename DD>
1.185 + static_move_ptr( static_move_ptr<TT, DD>&,
1.186 + typename
1.187 + move_ptrs::enable_if_convertible<
1.188 + TT, T, static_move_ptr&
1.189 + >::type::type* = 0 );
1.190 +
1.191 +#endif // BOOST_NO_FUNCTION_TEMPLATE_ORDERING || BOOST_NO_SFINAE
1.192 +
1.193 +//#ifndef BOOST_NO_MEMBER_TEMPLATE_FRIENDS
1.194 +// template<typename TT, typename DD>
1.195 +// friend class static_move_ptr;
1.196 +//#else
1.197 + public:
1.198 +//#endif
1.199 + typename impl_type::first_reference
1.200 + ptr() { return impl_.first(); }
1.201 +
1.202 + typename impl_type::first_const_reference
1.203 + ptr() const { return impl_.first(); }
1.204 +
1.205 + impl_type impl_;
1.206 +};
1.207 +
1.208 +} // namespace ptr_container_detail
1.209 +} // End namespace boost.
1.210 +
1.211 +#if defined(BOOST_MSVC)
1.212 +#pragma warning(pop) // #pragma warning(disable:4251)
1.213 +#endif
1.214 +
1.215 +#endif // #ifndef BOOST_STATIC_MOVE_PTR_HPP_INCLUDED