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git.ipfire.org Git - thirdparty/gcc.git/blob - libstdc++-v3/testsuite/20_util/optional/cons/value_neg.cc
1 // { dg-options "-std=gnu++17" }
2 // { dg-do compile { target c++17 } }
4 // Copyright (C) 2013-2021 Free Software Foundation, Inc.
6 // This file is part of the GNU ISO C++ Library. This library is free
7 // software; you can redistribute it and/or modify it under the
8 // terms of the GNU General Public License as published by the
9 // Free Software Foundation; either version 3, or (at your option)
12 // This library is distributed in the hope that it will be useful,
13 // but WITHOUT ANY WARRANTY; without even the implied warranty of
14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 // GNU General Public License for more details.
17 // You should have received a copy of the GNU General Public License along
18 // with this library; see the file COPYING3. If not see
19 // <http://www.gnu.org/licenses/>.
32 std::optional
<X
> ox
{42};
33 std::optional
<X
> ox2
= 42; // { dg-error "conversion" }
34 std::optional
<std::unique_ptr
<int>> oup
{new int};
35 std::optional
<std::unique_ptr
<int>> oup2
= new int; // { dg-error "conversion" }
36 struct U
{ explicit U(std::in_place_t
); };
37 std::optional
<U
> ou(std::in_place
); // { dg-error "no matching" }
40 // { dg-prune-output "no type .*enable_if" }