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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 : : _Construct(_T1* __p, const _T2& __value)
76 : : {
77 : : // _GLIBCXX_RESOLVE_LIB_DEFECTS
78 : : // 402. wrong new expression in [some_]allocator::construct
79 [ + - ][ + - ]: 16 : ::new(static_cast<void*>(__p)) _T1(__value);
80 : : }
81 : :
82 : : /**
83 : : * Destroy the object pointed to by a pointer type.
84 : : */
85 : : template<typename _Tp>
86 : : inline void
87 : : _Destroy(_Tp* __pointer)
88 : 114062 : { __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 : : _Destroy(_ForwardIterator __first, _ForwardIterator __last)
98 : : {
99 : : typedef typename iterator_traits<_ForwardIterator>::value_type
100 : : _Value_type;
101 [ + + ][ + + ]: 150665 : if (!__has_trivial_destructor(_Value_type))
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102 : : for (; __first != __last; ++__first)
103 : : std::_Destroy(&*__first);
104 : : }
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 : : allocator<_Tp>&)
127 : : {
128 : 3 : _Destroy(__first, __last);
129 : : }
130 : :
131 : : _GLIBCXX_END_NAMESPACE
132 : :
133 : : #endif /* _STL_CONSTRUCT_H */
134 : :
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