51 lines
1.6 KiB
C++
51 lines
1.6 KiB
C++
// { dg-do run { target c++14 } }
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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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// 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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// 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 <experimental/optional>
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#include <testsuite_hooks.h>
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struct NonTransferable
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{
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int x;
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NonTransferable(int x) : x(x) {}
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NonTransferable(NonTransferable&&) = delete;
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NonTransferable& operator=(NonTransferable&&) = delete;
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operator int() {return x;}
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};
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int main()
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{
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std::experimental::optional<int> oi;
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std::experimental::optional<NonTransferable> ot(std::move(oi));
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VERIFY(!ot);
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std::experimental::optional<int> oi2;
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std::experimental::optional<NonTransferable> ot2(oi2);
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VERIFY(!ot);
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std::experimental::optional<int> oi3{42};
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std::experimental::optional<NonTransferable> ot3(std::move(oi3));
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VERIFY(ot3 && *ot3 == 42);
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std::experimental::optional<int> oi4{666};
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std::experimental::optional<NonTransferable> ot4(oi4);
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VERIFY(ot4 && *ot4 == 666);
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}
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