libstdc++-v3/testsuite/experimental/memory_resource/null_memory_resource.cc

   1 // { dg-do run { target c++14 } }
   2
   3 // Copyright (C) 2016-2017 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 <experimental/memory_resource>
  21 #include <testsuite_hooks.h>
  22
  23 using std::experimental::pmr::memory_resource;
  24 using std::experimental::pmr::null_memory_resource;
  25 using std::experimental::pmr::new_delete_resource;
  26
  27 // null_memory_resource
  28 void
  29 test06()
  30 {
  31   memory_resource* r = null_memory_resource();
  32   bool caught = false;
  33
  34   void* p = nullptr;
  35   try {
  36     p = r->allocate(1);
  37   } catch (const std::bad_alloc&) {
  38     caught = true;
  39   }
  40   VERIFY( caught );
  41
  42   VERIFY( *r == *r );
  43   VERIFY( r->is_equal(*r) );
  44   VERIFY( !r->is_equal(*new_delete_resource()) );
  45 }
  46
  47 int main()
  48 {
  49   test06();
  50 }