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 <list> 23#include <string> 24#include <stdexcept> 25#include <ext/mt_allocator.h> 26 27static size_t count; 28 29struct count_check 30{ 31 count_check() { } 32 ~count_check() 33 { 34 // NB: __mt_allocator doesn't clean itself up. Thus, this will not 35 // be zero. 36 if (count != 0) 37 { 38 //throw std::runtime_error("allocation/deallocation count isn't zero"); 39 printf("allocation/deallocation count is %zu \n", count); 40 } 41 } 42}; 43 44static count_check check; 45 46void* 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 56void operator delete(void* p) throw() 57{ 58 printf("operator delete is called \n"); 59 if (p == NULL) 60 return; 61 count--; 62} 63 64typedef std::string value_type; 65using __gnu_cxx::__pool; 66using __gnu_cxx::__common_pool_policy; 67typedef __common_pool_policy<__pool, false> policy_type; 68typedef __gnu_cxx::__mt_alloc<value_type, policy_type> allocator_type; 69typedef std::char_traits<value_type> traits_type; 70typedef std::list<value_type, allocator_type> list_type; 71 72list_type l; 73 74int main() 75{ 76 l.push_back("bayou bend"); 77 return 0; 78} 79