1 : // nonstandard construct and destroy functions -*- C++ -*-
2 :
3 : // Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008
4 : // Free Software Foundation, Inc.
5 : //
6 : // This file is part of the GNU ISO C++ Library. This library is free
7 : // software; you can redistribute it and/or modify it under the
8 : // terms of the GNU General Public License as published by the
9 : // Free Software Foundation; either version 2, or (at your option)
10 : // any later version.
11 :
12 : // This library is distributed in the hope that it will be useful,
13 : // but WITHOUT ANY WARRANTY; without even the implied warranty of
14 : // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 : // GNU General Public License for more details.
16 :
17 : // You should have received a copy of the GNU General Public License along
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,
20 : // USA.
21 :
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
28 : // invalidate any other reasons why the executable file might be covered by
29 : // the GNU General Public License.
30 :
31 : /*
32 : *
33 : * Copyright (c) 1994
34 : * Hewlett-Packard Company
35 : *
36 : * Permission to use, copy, modify, distribute and sell this software
37 : * and its documentation for any purpose is hereby granted without fee,
38 : * provided that the above copyright notice appear in all copies and
39 : * that both that copyright notice and this permission notice appear
40 : * in supporting documentation. Hewlett-Packard Company makes no
41 : * representations about the suitability of this software for any
42 : * purpose. It is provided "as is" without express or implied warranty.
43 : *
44 : *
45 : * Copyright (c) 1996,1997
46 : * Silicon Graphics Computer Systems, Inc.
47 : *
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
51 : * that both that copyright notice and this permission notice appear
52 : * in supporting documentation. Silicon Graphics makes no
53 : * representations about the suitability of this software for any
54 : * purpose. It is provided "as is" without express or implied warranty.
55 : */
56 :
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.
60 : */
61 :
62 : #ifndef _STL_CONSTRUCT_H
63 : #define _STL_CONSTRUCT_H 1
64 :
65 : #include <new>
66 :
67 : _GLIBCXX_BEGIN_NAMESPACE(std)
68 :
69 : /**
70 : * Constructs an object in existing memory by invoking an allocated
71 : * object's constructor with an initializer.
72 : */
73 : template<typename _T1, typename _T2>
74 : inline void
75 23695 : _Construct(_T1* __p, const _T2& __value)
76 : {
77 : // _GLIBCXX_RESOLVE_LIB_DEFECTS
78 : // 402. wrong new expression in [some_]allocator::construct
79 23695 : ::new(static_cast<void*>(__p)) _T1(__value);
80 23695 : }
81 :
82 : /**
83 : * Destroy the object pointed to by a pointer type.
84 : */
85 : template<typename _Tp>
86 : inline void
87 82748 : _Destroy(_Tp* __pointer)
88 82748 : { __pointer->~_Tp(); }
89 :
90 : /**
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.
94 : */
95 : template<typename _ForwardIterator>
96 : inline void
97 33441 : _Destroy(_ForwardIterator __first, _ForwardIterator __last)
98 : {
99 : typedef typename iterator_traits<_ForwardIterator>::value_type
100 : _Value_type;
101 91960 : if (!__has_trivial_destructor(_Value_type))
102 : for (; __first != __last; ++__first)
103 82748 : std::_Destroy(&*__first);
104 33441 : }
105 :
106 : /**
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.
110 : */
111 :
112 : template <typename _Tp> class allocator;
113 :
114 : template<typename _ForwardIterator, typename _Allocator>
115 : void
116 : _Destroy(_ForwardIterator __first, _ForwardIterator __last,
117 : _Allocator& __alloc)
118 : {
119 : for (; __first != __last; ++__first)
120 : __alloc.destroy(&*__first);
121 : }
122 :
123 : template<typename _ForwardIterator, typename _Tp>
124 : inline void
125 : _Destroy(_ForwardIterator __first, _ForwardIterator __last,
126 33441 : allocator<_Tp>&)
127 : {
128 33441 : _Destroy(__first, __last);
129 33441 : }
130 :
131 : _GLIBCXX_END_NAMESPACE
132 :
133 : #endif /* _STL_CONSTRUCT_H */
134 :
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