| // nonstandard construct and destroy functions -*- C++ -*- |
| |
| // Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 |
| // 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 |
| // <http://www.gnu.org/licenses/>. |
| |
| /* |
| * |
| * Copyright (c) 1994 |
| * Hewlett-Packard Company |
| * |
| * Permission to use, copy, modify, distribute and sell this software |
| * and its documentation for any purpose is hereby granted without fee, |
| * provided that the above copyright notice appear in all copies and |
| * that both that copyright notice and this permission notice appear |
| * in supporting documentation. Hewlett-Packard Company makes no |
| * representations about the suitability of this software for any |
| * purpose. It is provided "as is" without express or implied warranty. |
| * |
| * |
| * Copyright (c) 1996,1997 |
| * Silicon Graphics Computer Systems, Inc. |
| * |
| * Permission to use, copy, modify, distribute and sell this software |
| * and its documentation for any purpose is hereby granted without fee, |
| * provided that the above copyright notice appear in all copies and |
| * that both that copyright notice and this permission notice appear |
| * in supporting documentation. Silicon Graphics makes no |
| * representations about the suitability of this software for any |
| * purpose. It is provided "as is" without express or implied warranty. |
| */ |
| |
| /** @file stl_construct.h |
| * This is an internal header file, included by other library headers. |
| * You should not attempt to use it directly. |
| */ |
| |
| #ifndef _STL_CONSTRUCT_H |
| #define _STL_CONSTRUCT_H 1 |
| |
| #include <new> |
| |
| _GLIBCXX_BEGIN_NAMESPACE(std) |
| |
| /** |
| * Constructs an object in existing memory by invoking an allocated |
| * object's constructor with an initializer. |
| */ |
| template<typename _T1, typename _T2> |
| inline void |
| _Construct(_T1* __p, const _T2& __value) |
| { |
| // _GLIBCXX_RESOLVE_LIB_DEFECTS |
| // 402. wrong new expression in [some_]allocator::construct |
| ::new(static_cast<void*>(__p)) _T1(__value); |
| } |
| |
| /** |
| * Destroy the object pointed to by a pointer type. |
| */ |
| template<typename _Tp> |
| inline void |
| _Destroy(_Tp* __pointer) |
| { __pointer->~_Tp(); } |
| |
| template<bool> |
| struct _Destroy_aux |
| { |
| template<typename _ForwardIterator> |
| static void |
| __destroy(_ForwardIterator __first, _ForwardIterator __last) |
| { |
| for (; __first != __last; ++__first) |
| std::_Destroy(&*__first); |
| } |
| }; |
| |
| template<> |
| struct _Destroy_aux<true> |
| { |
| template<typename _ForwardIterator> |
| static void |
| __destroy(_ForwardIterator, _ForwardIterator) { } |
| }; |
| |
| /** |
| * Destroy a range of objects. If the value_type of the object has |
| * a trivial destructor, the compiler should optimize all of this |
| * away, otherwise the objects' destructors must be invoked. |
| */ |
| template<typename _ForwardIterator> |
| inline void |
| _Destroy(_ForwardIterator __first, _ForwardIterator __last) |
| { |
| typedef typename iterator_traits<_ForwardIterator>::value_type |
| _Value_type; |
| std::_Destroy_aux<__has_trivial_destructor(_Value_type)>:: |
| __destroy(__first, __last); |
| } |
| |
| /** |
| * Destroy a range of objects using the supplied allocator. For |
| * nondefault allocators we do not optimize away invocation of |
| * destroy() even if _Tp has a trivial destructor. |
| */ |
| |
| template <typename _Tp> class allocator; |
| |
| template<typename _ForwardIterator, typename _Allocator> |
| void |
| _Destroy(_ForwardIterator __first, _ForwardIterator __last, |
| _Allocator& __alloc) |
| { |
| for (; __first != __last; ++__first) |
| __alloc.destroy(&*__first); |
| } |
| |
| template<typename _ForwardIterator, typename _Tp> |
| inline void |
| _Destroy(_ForwardIterator __first, _ForwardIterator __last, |
| allocator<_Tp>&) |
| { |
| _Destroy(__first, __last); |
| } |
| |
| _GLIBCXX_END_NAMESPACE |
| |
| #endif /* _STL_CONSTRUCT_H */ |
| |