libstdc++-v3/testsuite/20_util/unique_ptr/assign/48635.cc

   1 // { dg-do run { target c++11 } }
   2
   3 // Copyright (C) 2011-2024 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 <testsuite_hooks.h>
  22
  23 struct Deleter
  24 {
  25   Deleter() = default;
  26   Deleter(const Deleter&) = default;
  27   Deleter(Deleter&&) = default;
  28
  29   Deleter&
  30   operator=(const Deleter&)
  31   {
  32     VERIFY( true );
  33     return *this;
  34   }
  35
  36   Deleter&
  37   operator=(Deleter&&)
  38   {
  39     VERIFY( false );
  40     return *this;
  41   }
  42
  43   template<class T>
  44     void
  45     operator()(T*) const { }
  46 };
  47
  48 struct DDeleter : Deleter { };
  49
  50 // libstdc++/48635
  51 void test01()
  52 {
  53   Deleter d;
  54
  55   std::unique_ptr<int, Deleter&> p1(nullptr, d), p2(nullptr, d);
  56   p2 = std::move(p1);
  57
  58   DDeleter dd;
  59
  60   std::unique_ptr<int[], Deleter&> p1a(nullptr, d), p2a(nullptr, d);
  61   p2a = std::move(p1a);
  62 }
  63
  64 int main()
  65 {
  66   test01();
  67   return 0;
  68 }