47 lines
1.4 KiB
C++
47 lines
1.4 KiB
C++
// { dg-do compile { target c++11 } }
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// Copyright (C) 2016-2019 Free Software Foundation, Inc.
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//
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// This file is part of the GNU ISO C++ Library. This library is free
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// software; you can redistribute it and/or modify it under the
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// terms of the GNU General Public License as published by the
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// Free Software Foundation; either version 3, or (at your option)
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// any later version.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License along
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// with this library; see the file COPYING3. If not see
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// <http://www.gnu.org/licenses/>.
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#include <tuple>
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#include <utility>
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struct derived;
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struct base
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{
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operator derived & () &;
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operator derived const & () const &;
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operator derived && () &&;
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};
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struct derived : base {};
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base::operator derived & () & { return *static_cast<derived *>(this); }
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base::operator derived const & () const & { return *static_cast<derived const *>(this); }
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base::operator derived && () && { return std::move(*static_cast<derived *>(this)); }
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std::tuple<derived &&> test(base && b)
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{
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return std::tuple<derived &&>(std::move(b));
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}
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int main(int,char**)
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{
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auto d = std::get<0>(test(derived{}));
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return 0;
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}
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