libstdc++-v3/testsuite/ext/mt_allocator/deallocate_local-4.cc

   1 //
   2 // Copyright (C) 2004 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 #include <testsuite_hooks.h>
  26
  27 static size_t count;
  28
  29 struct count_check
  30 {
  31   count_check() {}
  32   ~count_check()
  33   {
  34     if (count != 0)
  35       {
  36         // NB: __mt_allocator doesn't clean itself up. Thus, this will
  37         // not be zero.
  38       }
  39   }
  40 };
  41
  42 static count_check check;
  43
  44 void* operator new(size_t size) throw(std::bad_alloc)
  45 {
  46   printf("operator new is called \n");
  47   void* p = malloc(size);
  48   if (p == NULL)
  49     throw std::bad_alloc();
  50   count++;
  51   return p;
  52 }
  53
  54 void operator delete(void* p) throw()
  55 {
  56   printf("operator delete is called \n");
  57   if (p == NULL)
  58     return;
  59   count--;
  60   if (count == 0)
  61     printf("All memory released \n");
  62   else
  63     printf("%u allocations to be released \n", count);
  64   free(p);
  65 }
  66
  67 typedef char value_type;
  68 typedef std::char_traits<value_type> traits_type;
  69 using __gnu_cxx::__pool;
  70 using __gnu_cxx::__per_type_pool_policy;
  71 typedef __per_type_pool_policy<value_type, __pool, false> policy_type;
  72 typedef __gnu_cxx::__mt_alloc<value_type, policy_type> allocator_type;
  73 typedef std::basic_string<value_type, traits_type, allocator_type> string_type;
  74
  75 int main()
  76 {
  77   bool test __attribute__((unused)) = true;
  78   {
  79     string_type s;
  80     s += "bayou bend";
  81   }
  82   return 0;
  83 }