libstdc++-v3/testsuite/ext/mt_allocator/deallocate_global_thread-3.cc

   1 //
   2 // Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009
   3 // Free Software Foundation, Inc.
   4 //
   5 // This file is part of the GNU ISO C++ Library.  This library is free
   6 // software; you can redistribute it and/or modify it under the
   7 // terms of the GNU General Public License as published by the
   8 // Free Software Foundation; either version 3, or (at your option)
   9 // any later version.
  10 //
  11 // This library is distributed in the hope that it will be useful,
  12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 // GNU General Public License for more details.
  15 //
  16 // You should have received a copy of the GNU General Public License along
  17 // with this library; see the file COPYING3.  If not see
  18 // <http://www.gnu.org/licenses/>.
  19
  20 // 20.4.1.1 allocator members
  21
  22 #include <list>
  23 #include <string>
  24 #include <stdexcept>
  25 #include <cstdio>
  26 #include <ext/mt_allocator.h>
  27
  28 static size_t count;
  29
  30 struct count_check
  31 {
  32   count_check() { }
  33   ~count_check()
  34   {
  35     // NB: __mt_allocator doesn't clean itself up. Thus, this will not
  36     // be zero.
  37     if (count != 0)
  38       {
  39         //throw std::runtime_error("allocation/deallocation count isn't zero");
  40         printf("allocation/deallocation count is %zu \n", count);
  41       }
  42   }
  43 };
  44
  45 static count_check check;
  46
  47 void* operator new(size_t size) throw(std::bad_alloc)
  48 {
  49   printf("operator new is called \n");
  50   void* p = malloc(size);
  51   if (p == NULL)
  52     throw std::bad_alloc();
  53   count++;
  54   return p;
  55 }
  56
  57 void operator delete(void* p) throw()
  58 {
  59   printf("operator delete is called \n");
  60   if (p == NULL)
  61     return;
  62   count--;
  63 }
  64
  65 typedef std::string value_type;
  66 using __gnu_cxx::__pool;
  67 using __gnu_cxx::__per_type_pool_policy;
  68 typedef __per_type_pool_policy<value_type, __pool, true> policy_type;
  69 typedef __gnu_cxx::__mt_alloc<value_type, policy_type> allocator_type;
  70 typedef std::char_traits<value_type> traits_type;
  71 typedef std::list<value_type, allocator_type> list_type;
  72
  73 list_type l;
  74
  75 int main()
  76 {
  77   l.push_back("bayou bend");
  78   return 0;
  79 }