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// Copyright (C) 2019-2022 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library. This library is free
// software; you can redistribute it and/or modify it under the
// terms of the GNU General Public License as published by the
// Free Software Foundation; either version 3, or (at your option)
// any later version.
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License along
// with this library; see the file COPYING3. If not see
// <http://www.gnu.org/licenses/>.
// { dg-do compile { target c++17 } }
#include <functional>
struct Immovable {
Immovable() = default;
Immovable(const Immovable&) = delete;
Immovable& operator=(const Immovable&) = delete;
};
Immovable get() { return {}; }
const Immovable i = get(); // OK
std::function<const Immovable()> f{&get}; // fails
const Immovable i2 = f();
const Immovable cget() { return {}; }
Immovable ci = cget(); // OK
std::function<Immovable()> cf{&cget}; // fails
Immovable ci2 = cf();