libstdc++-v3/testsuite/20_util/shared_ptr/assign/unique_ptr_rvalue.cc

   1 // { dg-do compile { target c++11 } }
   2 // { dg-require-effective-target hosted }
   3
   4 // Copyright (C) 2008-2024 Free Software Foundation, Inc.
   5 //
   6 // This file is part of the GNU ISO C++ Library.  This library is free
   7 // software; you can redistribute it and/or modify it under the
   8 // terms of the GNU General Public License as published by the
   9 // Free Software Foundation; either version 3, or (at your option)
  10 // any later version.
  11
  12 // This library is distributed in the hope that it will be useful,
  13 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 // GNU General Public License for more details.
  16
  17 // You should have received a copy of the GNU General Public License along
  18 // with this library; see the file COPYING3.  If not see
  19 // <http://www.gnu.org/licenses/>.
  20
  21 // 20.7.12.2 Template class shared_ptr [util.smartptr.shared]
  22
  23 #include <memory>
  24
  25 struct A { };
  26 std::unique_ptr<A> source() { return std::unique_ptr<A>(); }
  27
  28 // 20.7.12.2.3 shared_ptr assignment [util.smartptr.shared.assign]
  29
  30 // Assignment from rvalue unique_ptr
  31 void
  32 test01()
  33 {
  34   std::shared_ptr<A> a;
  35   a = source();
  36 }
  37
  38 void
  39 test02()
  40 {
  41   std::shared_ptr<A> a;
  42   std::unique_ptr<A> u;
  43   a = std::move(u);
  44 }
  45
  46 int
  47 main()
  48 {
  49   test01();
  50   test02();
  51   return 0;
  52 }