1//
2// Copyright (C) 2004, 2005 Free Software Foundation, Inc.
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
17// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
18// USA.
19
20// 20.4.1.1 allocator members
21
22#include <string>
23#include <stdexcept>
24#include <ext/mt_allocator.h>
25
26static size_t count;
27
28struct count_check
29{
30  count_check() { }
31  ~count_check()
32  {
33    // NB: __mt_allocator doesn't clean itself up. Thus, this will not
34    // be zero.
35    if (count != 0)
36      {
37	//throw std::runtime_error("allocation/deallocation count isn't zero");
38	printf("allocation/deallocation count is %zu \n", count);
39      }
40  }
41};
42
43static count_check check;
44
45void* operator new(size_t size) throw(std::bad_alloc)
46{
47  printf("operator new is called \n");
48  void* p = malloc(size);
49  if (p == NULL)
50    throw std::bad_alloc();
51  count++;
52  return p;
53}
54
55void operator delete(void* p) throw()
56{
57  printf("operator delete is called \n");
58  if (p == NULL)
59    return;
60  count--;
61}
62
63typedef char value_type;
64typedef std::char_traits<value_type> traits_type;
65using __gnu_cxx::__pool;
66using __gnu_cxx::__per_type_pool_policy;
67typedef __per_type_pool_policy<value_type, __pool, true> policy_type;
68typedef __gnu_cxx::__mt_alloc<value_type, policy_type> allocator_type;
69typedef std::basic_string<value_type, traits_type, allocator_type> string_type;
70
71int main()
72{
73  string_type s;
74  s += "bayou bend";
75  return 0;
76}
77