X-Git-Url: http://wagnertech.de/git?a=blobdiff_plain;f=i686-linux-gnu-4.7%2Fusr%2Finclude%2Fc%2B%2B%2F4.7%2Fbits%2Funique_ptr.h;fp=i686-linux-gnu-4.7%2Fusr%2Finclude%2Fc%2B%2B%2F4.7%2Fbits%2Funique_ptr.h;h=23937daa29c9a51000f1a97837ed10c9f3a31140;hb=94df942c2c7bd3457276fe5b7367623cbb8c1302;hp=0000000000000000000000000000000000000000;hpb=4dd7d9155a920895ff7b1cb6b9c9c676aa62000a;p=cross.git diff --git a/i686-linux-gnu-4.7/usr/include/c++/4.7/bits/unique_ptr.h b/i686-linux-gnu-4.7/usr/include/c++/4.7/bits/unique_ptr.h new file mode 100644 index 0000000..23937da --- /dev/null +++ b/i686-linux-gnu-4.7/usr/include/c++/4.7/bits/unique_ptr.h @@ -0,0 +1,572 @@ +// unique_ptr implementation -*- C++ -*- + +// Copyright (C) 2008, 2009, 2010, 2011 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file bits/unique_ptr.h + * This is an internal header file, included by other library headers. + * Do not attempt to use it directly. @headername{memory} + */ + +#ifndef _UNIQUE_PTR_H +#define _UNIQUE_PTR_H 1 + +#include +#include +#include +#include +#include + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + /** + * @addtogroup pointer_abstractions + * @{ + */ + + /// Primary template, default_delete. + template + struct default_delete + { + constexpr default_delete() noexcept = default; + + template::value>::type> + default_delete(const default_delete<_Up>&) noexcept { } + + void + operator()(_Tp* __ptr) const + { + static_assert(sizeof(_Tp)>0, + "can't delete pointer to incomplete type"); + delete __ptr; + } + }; + + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // DR 740 - omit specialization for array objects with a compile time length + /// Specialization, default_delete. + template + struct default_delete<_Tp[]> + { + constexpr default_delete() noexcept = default; + + void + operator()(_Tp* __ptr) const + { + static_assert(sizeof(_Tp)>0, + "can't delete pointer to incomplete type"); + delete [] __ptr; + } + + template void operator()(_Up*) const = delete; + }; + + /// 20.7.12.2 unique_ptr for single objects. + template > + class unique_ptr + { + // use SFINAE to determine whether _Del::pointer exists + class _Pointer + { + template + static typename _Up::pointer __test(typename _Up::pointer*); + + template + static _Tp* __test(...); + + typedef typename remove_reference<_Dp>::type _Del; + + public: + typedef decltype( __test<_Del>(0)) type; + }; + + typedef std::tuple __tuple_type; + __tuple_type _M_t; + + public: + typedef typename _Pointer::type pointer; + typedef _Tp element_type; + typedef _Dp deleter_type; + + // Constructors. + constexpr unique_ptr() noexcept + : _M_t() + { static_assert(!std::is_pointer::value, + "constructed with null function pointer deleter"); } + + explicit + unique_ptr(pointer __p) noexcept + : _M_t(__p, deleter_type()) + { static_assert(!std::is_pointer::value, + "constructed with null function pointer deleter"); } + + unique_ptr(pointer __p, + typename std::conditional::value, + deleter_type, const deleter_type&>::type __d) noexcept + : _M_t(__p, __d) { } + + unique_ptr(pointer __p, + typename std::remove_reference::type&& __d) noexcept + : _M_t(std::move(__p), std::move(__d)) + { static_assert(!std::is_reference::value, + "rvalue deleter bound to reference"); } + + constexpr unique_ptr(nullptr_t) noexcept + : _M_t() + { static_assert(!std::is_pointer::value, + "constructed with null function pointer deleter"); } + + // Move constructors. + unique_ptr(unique_ptr&& __u) noexcept + : _M_t(__u.release(), std::forward(__u.get_deleter())) { } + + template::pointer, + pointer>::value + && !std::is_array<_Up>::value + && ((std::is_reference<_Dp>::value + && std::is_same<_Ep, _Dp>::value) + || (!std::is_reference<_Dp>::value + && std::is_convertible<_Ep, _Dp>::value))> + ::type> + unique_ptr(unique_ptr<_Up, _Ep>&& __u) noexcept + : _M_t(__u.release(), std::forward<_Ep>(__u.get_deleter())) + { } + +#if _GLIBCXX_USE_DEPRECATED + template::value + && std::is_same<_Dp, + default_delete<_Tp>>::value>::type> + unique_ptr(auto_ptr<_Up>&& __u) noexcept + : _M_t(__u.release(), deleter_type()) { } +#endif + + // Destructor. + ~unique_ptr() noexcept + { + auto& __ptr = std::get<0>(_M_t); + if (__ptr != nullptr) + get_deleter()(__ptr); + __ptr = pointer(); + } + + // Assignment. + unique_ptr& + operator=(unique_ptr&& __u) noexcept + { + reset(__u.release()); + get_deleter() = std::forward(__u.get_deleter()); + return *this; + } + + template::pointer, + pointer>::value + && !std::is_array<_Up>::value>::type> + unique_ptr& + operator=(unique_ptr<_Up, _Ep>&& __u) noexcept + { + reset(__u.release()); + get_deleter() = std::forward<_Ep>(__u.get_deleter()); + return *this; + } + + unique_ptr& + operator=(nullptr_t) noexcept + { + reset(); + return *this; + } + + // Observers. + typename std::add_lvalue_reference::type + operator*() const + { + _GLIBCXX_DEBUG_ASSERT(get() != pointer()); + return *get(); + } + + pointer + operator->() const noexcept + { + _GLIBCXX_DEBUG_ASSERT(get() != pointer()); + return get(); + } + + pointer + get() const noexcept + { return std::get<0>(_M_t); } + + deleter_type& + get_deleter() noexcept + { return std::get<1>(_M_t); } + + const deleter_type& + get_deleter() const noexcept + { return std::get<1>(_M_t); } + + explicit operator bool() const noexcept + { return get() == pointer() ? false : true; } + + // Modifiers. + pointer + release() noexcept + { + pointer __p = get(); + std::get<0>(_M_t) = pointer(); + return __p; + } + + void + reset(pointer __p = pointer()) noexcept + { + using std::swap; + swap(std::get<0>(_M_t), __p); + if (__p != pointer()) + get_deleter()(__p); + } + + void + swap(unique_ptr& __u) noexcept + { + using std::swap; + swap(_M_t, __u._M_t); + } + + // Disable copy from lvalue. + unique_ptr(const unique_ptr&) = delete; + unique_ptr& operator=(const unique_ptr&) = delete; + }; + + /// 20.7.12.3 unique_ptr for array objects with a runtime length + // [unique.ptr.runtime] + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // DR 740 - omit specialization for array objects with a compile time length + template + class unique_ptr<_Tp[], _Dp> + { + typedef std::tuple<_Tp*, _Dp> __tuple_type; + __tuple_type _M_t; + + public: + typedef _Tp* pointer; + typedef _Tp element_type; + typedef _Dp deleter_type; + + // Constructors. + constexpr unique_ptr() noexcept + : _M_t() + { static_assert(!std::is_pointer::value, + "constructed with null function pointer deleter"); } + + explicit + unique_ptr(pointer __p) noexcept + : _M_t(__p, deleter_type()) + { static_assert(!std::is_pointer::value, + "constructed with null function pointer deleter"); } + + unique_ptr(pointer __p, + typename std::conditional::value, + deleter_type, const deleter_type&>::type __d) noexcept + : _M_t(__p, __d) { } + + unique_ptr(pointer __p, typename + std::remove_reference::type && __d) noexcept + : _M_t(std::move(__p), std::move(__d)) + { static_assert(!std::is_reference::value, + "rvalue deleter bound to reference"); } + + constexpr unique_ptr(nullptr_t) noexcept + : _M_t() + { static_assert(!std::is_pointer::value, + "constructed with null function pointer deleter"); } + + // Move constructors. + unique_ptr(unique_ptr&& __u) noexcept + : _M_t(__u.release(), std::forward(__u.get_deleter())) { } + + template + unique_ptr(unique_ptr<_Up, _Ep>&& __u) noexcept + : _M_t(__u.release(), std::forward<_Ep>(__u.get_deleter())) + { } + + // Destructor. + ~unique_ptr() + { + auto& __ptr = std::get<0>(_M_t); + if (__ptr != nullptr) + get_deleter()(__ptr); + __ptr = pointer(); + } + + // Assignment. + unique_ptr& + operator=(unique_ptr&& __u) noexcept + { + reset(__u.release()); + get_deleter() = std::forward(__u.get_deleter()); + return *this; + } + + template + unique_ptr& + operator=(unique_ptr<_Up, _Ep>&& __u) noexcept + { + reset(__u.release()); + get_deleter() = std::forward<_Ep>(__u.get_deleter()); + return *this; + } + + unique_ptr& + operator=(nullptr_t) noexcept + { + reset(); + return *this; + } + + // Observers. + typename std::add_lvalue_reference::type + operator[](size_t __i) const + { + _GLIBCXX_DEBUG_ASSERT(get() != pointer()); + return get()[__i]; + } + + pointer + get() const noexcept + { return std::get<0>(_M_t); } + + deleter_type& + get_deleter() noexcept + { return std::get<1>(_M_t); } + + const deleter_type& + get_deleter() const noexcept + { return std::get<1>(_M_t); } + + explicit operator bool() const noexcept + { return get() == pointer() ? false : true; } + + // Modifiers. + pointer + release() noexcept + { + pointer __p = get(); + std::get<0>(_M_t) = pointer(); + return __p; + } + + void + reset(pointer __p = pointer()) noexcept + { + using std::swap; + swap(std::get<0>(_M_t), __p); + if (__p != nullptr) + get_deleter()(__p); + } + + void + reset(nullptr_t) noexcept + { + pointer __p = get(); + std::get<0>(_M_t) = pointer(); + if (__p != nullptr) + get_deleter()(__p); + } + + // DR 821. + template + void reset(_Up) = delete; + + void + swap(unique_ptr& __u) noexcept + { + using std::swap; + swap(_M_t, __u._M_t); + } + + // Disable copy from lvalue. + unique_ptr(const unique_ptr&) = delete; + unique_ptr& operator=(const unique_ptr&) = delete; + + // Disable construction from convertible pointer types. + // (N2315 - 20.6.5.3.1) + template + unique_ptr(_Up*, typename + std::conditional::value, + deleter_type, const deleter_type&>::type, + typename std::enable_if::value>::type* = 0) = delete; + + template + unique_ptr(_Up*, typename std::remove_reference::type&&, + typename std::enable_if::value>::type* = 0) = delete; + + template + explicit + unique_ptr(_Up*, typename std::enable_if::value>::type* = 0) = delete; + }; + + template + inline void + swap(unique_ptr<_Tp, _Dp>& __x, + unique_ptr<_Tp, _Dp>& __y) noexcept + { __x.swap(__y); } + + template + inline bool + operator==(const unique_ptr<_Tp, _Dp>& __x, + const unique_ptr<_Up, _Ep>& __y) + { return __x.get() == __y.get(); } + + template + inline bool + operator==(const unique_ptr<_Tp, _Dp>& __x, nullptr_t) noexcept + { return !__x; } + + template + inline bool + operator==(nullptr_t, const unique_ptr<_Tp, _Dp>& __x) noexcept + { return !__x; } + + template + inline bool + operator!=(const unique_ptr<_Tp, _Dp>& __x, + const unique_ptr<_Up, _Ep>& __y) + { return __x.get() != __y.get(); } + + template + inline bool + operator!=(const unique_ptr<_Tp, _Dp>& __x, nullptr_t) noexcept + { return (bool)__x; } + + template + inline bool + operator!=(nullptr_t, const unique_ptr<_Tp, _Dp>& __x) noexcept + { return (bool)__x; } + + template + inline bool + operator<(const unique_ptr<_Tp, _Dp>& __x, + const unique_ptr<_Up, _Ep>& __y) + { + typedef typename + std::common_type::pointer, + typename unique_ptr<_Up, _Ep>::pointer>::type _CT; + return std::less<_CT>()(__x.get(), __y.get()); + } + + template + inline bool + operator<(const unique_ptr<_Tp, _Dp>& __x, nullptr_t) + { return std::less::pointer>()(__x.get(), + nullptr); } + + template + inline bool + operator<(nullptr_t, const unique_ptr<_Tp, _Dp>& __x) + { return std::less::pointer>()(nullptr, + __x.get()); } + + template + inline bool + operator<=(const unique_ptr<_Tp, _Dp>& __x, + const unique_ptr<_Up, _Ep>& __y) + { return !(__y < __x); } + + template + inline bool + operator<=(const unique_ptr<_Tp, _Dp>& __x, nullptr_t) + { return !(nullptr < __x); } + + template + inline bool + operator<=(nullptr_t, const unique_ptr<_Tp, _Dp>& __x) + { return !(__x < nullptr); } + + template + inline bool + operator>(const unique_ptr<_Tp, _Dp>& __x, + const unique_ptr<_Up, _Ep>& __y) + { return (__y < __x); } + + template + inline bool + operator>(const unique_ptr<_Tp, _Dp>& __x, nullptr_t) + { return std::less::pointer>()(nullptr, + __x.get()); } + + template + inline bool + operator>(nullptr_t, const unique_ptr<_Tp, _Dp>& __x) + { return std::less::pointer>()(__x.get(), + nullptr); } + + template + inline bool + operator>=(const unique_ptr<_Tp, _Dp>& __x, + const unique_ptr<_Up, _Ep>& __y) + { return !(__x < __y); } + + template + inline bool + operator>=(const unique_ptr<_Tp, _Dp>& __x, nullptr_t) + { return !(__x < nullptr); } + + template + inline bool + operator>=(nullptr_t, const unique_ptr<_Tp, _Dp>& __x) + { return !(nullptr < __x); } + + /// std::hash specialization for unique_ptr. + template + struct hash> + : public __hash_base> + { + size_t + operator()(const unique_ptr<_Tp, _Dp>& __u) const noexcept + { + typedef unique_ptr<_Tp, _Dp> _UP; + return std::hash()(__u.get()); + } + }; + + // @} group pointer_abstractions + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace + +#endif /* _UNIQUE_PTR_H */