libstdc++-v3/testsuite/ext/mt_allocator/check_allocate_big_per_type.cc

   1 // 2005-01-26  Paolo Carlini  <pcarlini@suse.de>
   2 //
   3 // Copyright (C) 2005-2023 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 #include <memory>
  21 #include <ext/mt_allocator.h>
  22 #include <cstring>
  23 #include <testsuite_hooks.h>
  24
  25 struct big { char array[256]; };
  26
  27 // __per_type_pool_policy
  28 void test01()
  29 {
  30   typedef big value_type;
  31
  32   using __gnu_cxx::__pool;
  33   using __gnu_cxx::__per_type_pool_policy;
  34
  35 #ifdef __GTHREADS
  36   typedef __per_type_pool_policy<value_type, __pool, true> policy_type;
  37 #else
  38   typedef __per_type_pool_policy<value_type, __pool, false> policy_type;
  39 #endif
  40   typedef __gnu_cxx::__mt_alloc<value_type, policy_type> allocator_type;
  41
  42   allocator_type a;
  43   allocator_type::pointer p1 = a.allocate(64);
  44   std::memset((void*)p1, 0, sizeof(big) * 64);
  45   a.deallocate(p1, 64);
  46 }
  47
  48 int main()
  49 {
  50   test01();
  51   return 0;
  52 }