libstdc++-v3/testsuite/ext/malloc_allocator/deallocate_local.cc

   1 //
   2 // Copyright (C) 2004, 2005, 2006, 2007, 2008 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 <cstdio>
  24 #include <ext/malloc_allocator.h>
  25 #include <testsuite_hooks.h>
  26
  27 static size_t alloc_cnt;
  28
  29 void* operator new(size_t size) throw(std::bad_alloc)
  30 {
  31   printf("operator new is called \n");
  32   void* p = malloc(size);
  33   if (p == NULL)
  34     throw std::bad_alloc();
  35   alloc_cnt++;
  36   return p;
  37 }
  38
  39 void operator delete(void* p) throw()
  40 {
  41   printf("operator delete is called \n");
  42   if (p == NULL)
  43     return;
  44   alloc_cnt--;
  45   if (alloc_cnt == 0)
  46     printf("All memory released \n");
  47   else
  48     printf("%lu allocations to be released \n",
  49            static_cast<unsigned long>(alloc_cnt));
  50   free(p);
  51 }
  52
  53 typedef char char_t;
  54 typedef std::char_traits<char_t> traits_t;
  55 typedef __gnu_cxx::malloc_allocator<char_t> allocator_t;
  56 typedef std::basic_string<char_t, traits_t, allocator_t> string_t;
  57
  58 int main()
  59 {
  60   bool test __attribute__((unused)) = true;
  61   {
  62     string_t s;
  63     s += "bayou bend";
  64   }
  65   VERIFY( alloc_cnt == 0 );
  66   return 0;
  67 }