libstdc++-v3/testsuite/20_util/shared_ptr/cons/unique_ptr_deleter_ref_1.cc

   1 // { dg-options "-std=gnu++0x" }
   2
   3 // Copyright (C) 2008-2014 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 // 20.7.12.2 Template class shared_ptr [util.smartptr.shared]
  21
  22 #include <memory>
  23 #include <testsuite_hooks.h>
  24
  25 struct A { };
  26
  27 struct D {
  28     typedef void result_type;
  29     void operator()(A* p) { delete p;  ++count; }
  30     int count;
  31 };
  32
  33
  34 // 20.7.12.2.1 shared_ptr constructors [util.smartptr.shared.const]
  35
  36 // Construction from unique_ptr
  37 int
  38 test01()
  39 {
  40   bool test __attribute__((unused)) = true;
  41
  42   D d = D();
  43   std::unique_ptr<A, D&> up(new A, d);
  44   {
  45       std::shared_ptr<A> sp(std::move(up));
  46       VERIFY( up.get() == 0 );
  47       VERIFY( sp.get() != 0 );
  48       VERIFY( sp.use_count() == 1 );
  49   }
  50   VERIFY( d.count == 1 );
  51
  52   return 0;
  53 }
  54
  55 int
  56 main()
  57 {
  58   test01();
  59   return 0;
  60 }