libstdc++-v3/testsuite/ext/throw_allocator/deallocate_global.cc

   1 //
   2 // Copyright (C) 2007, 2009 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 3, 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 COPYING3.  If not see
  17 // <http://www.gnu.org/licenses/>.
  18
  19 // { dg-require-time "" }
  20
  21 #include <string>
  22 #include <stdexcept>
  23 #include <ext/throw_allocator.h>
  24 #include <testsuite_hooks.h>
  25
  26 static size_t count;
  27
  28 struct count_check
  29 {
  30   count_check() {}
  31   ~count_check()
  32   {
  33     if (count != 0)
  34       throw std::runtime_error("count isn't zero");
  35   }
  36 };
  37
  38 static count_check check;
  39
  40 void* operator new(size_t size) throw(std::bad_alloc)
  41 {
  42   printf("operator new is called \n");
  43   void* p = malloc(size);
  44   if (p == NULL)
  45     throw std::bad_alloc();
  46   count++;
  47   return p;
  48 }
  49
  50 void operator delete(void* p) throw()
  51 {
  52   printf("operator delete is called \n");
  53   if (p == NULL)
  54     return;
  55   count--;
  56   if (count == 0)
  57     printf("All memory released \n");
  58   else
  59     printf("%lu allocations to be released \n",
  60            static_cast<unsigned long>(count));
  61   free(p);
  62 }
  63
  64 typedef char char_t;
  65 typedef std::char_traits<char_t> traits_t;
  66 typedef __gnu_cxx::throw_allocator<char_t> allocator_t;
  67 typedef std::basic_string<char_t, traits_t, allocator_t> string_t;
  68
  69 string_t s("bayou bend");
  70
  71 int main()
  72 {
  73   return 0;
  74 }