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a5544970 | 1 | // Copyright (C) 2004-2019 Free Software Foundation, Inc. |
a9a51750 BK |
2 | // |
3 | // This file is part of the GNU ISO C++ Library. This library is free | |
4 | // software; you can redistribute it and/or modify it under the | |
5 | // terms of the GNU General Public License as published by the | |
6 | // Free Software Foundation; either version 3, or (at your option) | |
7 | // any later version. | |
8 | ||
9 | // This library is distributed in the hope that it will be useful, | |
10 | // but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | // GNU General Public License for more details. | |
13 | ||
14 | // You should have received a copy of the GNU General Public License along | |
15 | // with this library; see the file COPYING3. If not see | |
16 | // <http://www.gnu.org/licenses/>. | |
17 | ||
18 | #include <ext/new_allocator.h> | |
19 | ||
20 | using namespace std; | |
21 | using __gnu_cxx::new_allocator; | |
22 | ||
23 | template<typename T> | |
24 | class clear_alloc : public new_allocator<T> | |
25 | { | |
26 | public: | |
27 | ||
28 | template <typename T1> | |
29 | struct rebind | |
30 | { typedef clear_alloc<T1> other; }; | |
31 | ||
32 | virtual void clear() throw() | |
33 | { } | |
34 | ||
35 | clear_alloc() throw() | |
36 | { } | |
37 | ||
38 | clear_alloc(clear_alloc const&) throw() : new_allocator<T>() | |
39 | { } | |
40 | ||
41 | template<typename T1> | |
42 | clear_alloc(clear_alloc<T1> const&) throw() | |
43 | { } | |
44 | ||
45 | virtual ~clear_alloc() throw() | |
46 | { this->clear(); } | |
47 | ||
48 | T* allocate(typename new_allocator<T>::size_type n, const void *hint = 0) | |
49 | { | |
50 | this->clear(); | |
51 | return new_allocator<T>::allocate(n, hint); | |
52 | } | |
53 | ||
54 | void deallocate(T *ptr, typename new_allocator<T>::size_type n) | |
55 | { | |
56 | this->clear(); | |
57 | new_allocator<T>::deallocate(ptr, n); | |
58 | } | |
59 | }; | |
60 | ||
61 | template<typename Container> | |
62 | void Check_Container() | |
63 | { | |
64 | Container* pic = new Container; | |
65 | int x = 230; | |
66 | ||
67 | while (x--) | |
68 | { | |
69 | pic->push_back(x); | |
70 | } | |
71 | ||
72 | pic->get_allocator(); | |
73 | ||
74 | // The following has led to infinite recursions or cores. | |
75 | pic->clear(); | |
76 | ||
77 | delete pic; | |
78 | } |