libstdc++-v3/testsuite/ext/mt_allocator/deallocate_local_thread-1.cc

   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
  26 static size_t count;
  27
  28 struct 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
  43 static count_check check;
  44
  45 void* 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
  55 void operator delete(void* p) throw()
  56 {
  57   printf("operator delete is called \n");
  58   if (p == NULL)
  59     return;
  60   count--;
  61 }
  62
  63 typedef char value_type;
  64 typedef std::char_traits<value_type> traits_type;
  65 using __gnu_cxx::__pool;
  66 typedef __gnu_cxx::__common_pool_policy<__pool, true> policy_type;
  67 typedef __gnu_cxx::__mt_alloc<value_type, policy_type> allocator_type;
  68 typedef std::basic_string<value_type, traits_type, allocator_type> string_type;
  69
  70 int main()
  71 {
  72   string_type s;
  73   s += "bayou bend";
  74   return 0;
  75 }