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12cde21b | 1 | // |
b7e2f896 | 2 | // Copyright (C) 2004, 2005, 2006, 2007, 2008 Free Software Foundation, Inc. |
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3 | // |
4 | // This file is part of the GNU ISO C++ Library. This library is free | |
5 | // software; you can redistribute it and/or modify it under the | |
6 | // terms of the GNU General Public License as published by the | |
7 | // Free Software Foundation; either version 2, or (at your option) | |
8 | // any later version. | |
9 | // | |
10 | // This library is distributed in the hope that it will be useful, | |
11 | // but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | // GNU General Public License for more details. | |
14 | // | |
15 | // You should have received a copy of the GNU General Public License along | |
16 | // with this library; see the file COPYING. If not, write to the Free | |
83f51799 | 17 | // Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, |
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18 | // USA. |
19 | ||
20 | // 20.4.1.1 allocator members | |
21 | ||
22 | #include <string> | |
23 | #include <stdexcept> | |
b7e2f896 | 24 | #include <cstdio> |
12cde21b | 25 | #include <ext/mt_allocator.h> |
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26 | |
27 | static size_t count; | |
28 | ||
29 | struct count_check | |
30 | { | |
a1340af7 | 31 | count_check() { } |
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32 | ~count_check() |
33 | { | |
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34 | // NB: __mt_allocator doesn't clean itself up. Thus, this will not |
35 | // be zero. | |
12cde21b | 36 | if (count != 0) |
5a1e5472 | 37 | { |
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38 | //throw std::runtime_error("allocation/deallocation count isn't zero"); |
39 | printf("allocation/deallocation count is %zu \n", count); | |
5a1e5472 | 40 | } |
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41 | } |
42 | }; | |
43 | ||
44 | static count_check check; | |
45 | ||
46 | void* operator new(size_t size) throw(std::bad_alloc) | |
47 | { | |
48 | printf("operator new is called \n"); | |
49 | void* p = malloc(size); | |
50 | if (p == NULL) | |
51 | throw std::bad_alloc(); | |
52 | count++; | |
53 | return p; | |
54 | } | |
55 | ||
56 | void operator delete(void* p) throw() | |
57 | { | |
58 | printf("operator delete is called \n"); | |
59 | if (p == NULL) | |
60 | return; | |
61 | count--; | |
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62 | } |
63 | ||
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64 | typedef char value_type; |
65 | typedef std::char_traits<value_type> traits_type; | |
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66 | using __gnu_cxx::__pool; |
67 | typedef __gnu_cxx::__common_pool_policy<__pool, false> policy_type; | |
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68 | typedef __gnu_cxx::__mt_alloc<value_type, policy_type> allocator_type; |
69 | typedef std::basic_string<value_type, traits_type, allocator_type> string_type; | |
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70 | |
71 | int main() | |
72 | { | |
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73 | string_type s; |
74 | s += "bayou bend"; | |
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75 | return 0; |
76 | } |