1 // nonstandard construct and destroy functions -*- C++ -*-
3 // Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008
4 // Free Software Foundation, Inc.
6 // This file is part of the GNU ISO C++ Library. This library is free
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14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 // GNU General Public License for more details.
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18 // with this library; see the file COPYING. If not, write to the Free
19 // Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
22 // As a special exception, you may use this file as part of a free software
23 // library without restriction. Specifically, if other files instantiate
24 // templates or use macros or inline functions from this file, or you compile
25 // this file and link it with other files to produce an executable, this
26 // file does not by itself cause the resulting executable to be covered by
27 // the GNU General Public License. This exception does not however
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34 * Hewlett-Packard Company
36 * Permission to use, copy, modify, distribute and sell this software
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45 * Copyright (c) 1996,1997
46 * Silicon Graphics Computer Systems, Inc.
48 * Permission to use, copy, modify, distribute and sell this software
49 * and its documentation for any purpose is hereby granted without fee,
50 * provided that the above copyright notice appear in all copies and
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57 /** @file stl_construct.h
58 * This is an internal header file, included by other library headers.
59 * You should not attempt to use it directly.
62 #ifndef _STL_CONSTRUCT_H
63 #define _STL_CONSTRUCT_H 1
67 _GLIBCXX_BEGIN_NAMESPACE(std)
70 * Constructs an object in existing memory by invoking an allocated
71 * object's constructor with an initializer.
73 template<typename _T1, typename _T2>
75 _Construct(_T1* __p, const _T2& __value)
77 // _GLIBCXX_RESOLVE_LIB_DEFECTS
78 // 402. wrong new expression in [some_]allocator::construct
79 ::new(static_cast<void*>(__p)) _T1(__value);
83 * Destroy the object pointed to by a pointer type.
85 template<typename _Tp>
87 _Destroy(_Tp* __pointer)
88 { __pointer->~_Tp(); }
91 * Destroy a range of objects. If the value_type of the object has
92 * a trivial destructor, the compiler should optimize all of this
93 * away, otherwise the objects' destructors must be invoked.
95 template<typename _ForwardIterator>
97 _Destroy(_ForwardIterator __first, _ForwardIterator __last)
99 typedef typename iterator_traits<_ForwardIterator>::value_type
101 if (!__has_trivial_destructor(_Value_type))
102 for (; __first != __last; ++__first)
103 std::_Destroy(&*__first);
107 * Destroy a range of objects using the supplied allocator. For
108 * nondefault allocators we do not optimize away invocation of
109 * destroy() even if _Tp has a trivial destructor.
112 template <typename _Tp> class allocator;
114 template<typename _ForwardIterator, typename _Allocator>
116 _Destroy(_ForwardIterator __first, _ForwardIterator __last,
119 for (; __first != __last; ++__first)
120 __alloc.destroy(&*__first);
123 template<typename _ForwardIterator, typename _Tp>
125 _Destroy(_ForwardIterator __first, _ForwardIterator __last,
128 _Destroy(__first, __last);
131 _GLIBCXX_END_NAMESPACE
133 #endif /* _STL_CONSTRUCT_H */