libstdc++-v3/testsuite/20_util/unique_ptr/assign/91308.cc

   1 // Copyright (C) 2019-2020 Free Software Foundation, Inc.
   2 //
   3 // This file is part of the GNU ISO C++ Library.  This library is free
   4 // software; you can redistribute it and/or modify it under the
   5 // terms of the GNU General Public License as published by the
   6 // Free Software Foundation; either version 3, or (at your option)
   7 // any later version.
   8
   9 // This library is distributed in the hope that it will be useful,
  10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 // GNU General Public License for more details.
  13
  14 // You should have received a copy of the GNU General Public License along
  15 // with this library; see the file COPYING3.  If not see
  16 // <http://www.gnu.org/licenses/>.
  17
  18 // { dg-do compile { target c++11 } }
  19
  20 #include <memory>
  21
  22 struct D1
  23 {
  24   void operator()(int* p) const noexcept { }
  25 };
  26
  27 struct D2 : D1
  28 {
  29   D2& operator=(D1&&) noexcept { return *this; }
  30 };
  31
  32 void
  33 test01()
  34 {
  35   std::unique_ptr<int, D1> d1;
  36   std::unique_ptr<int, D2> d2;
  37   d2 = std::move(d1);
  38 }
  39
  40 void
  41 test02()
  42 {
  43   std::unique_ptr<int[], D1> d1;
  44   std::unique_ptr<int[], D2> d2;
  45   d2 = std::move(d1);
  46 }