]>
git.ipfire.org Git - thirdparty/gcc.git/blob - libstdc++-v3/testsuite/20_util/is_invocable/91456.cc
1 // Copyright (C) 2019-2024 Free Software Foundation, Inc.
3 // This file is part of the GNU ISO C++ Library. This library is free
4 // software; you can redistribute it and/or modify it under the
5 // terms of the GNU General Public License as published by the
6 // Free Software Foundation; either version 3, or (at your option)
9 // This library is distributed in the hope that it will be useful,
10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 // GNU General Public License for more details.
14 // You should have received a copy of the GNU General Public License along
15 // with this library; see the file COPYING3. If not see
16 // <http://www.gnu.org/licenses/>.
18 // { dg-do compile { target c++17 } }
21 // std::function and std::is_invocable_r do not understand guaranteed elision
23 #include <type_traits>
28 Immovable() = default;
29 Immovable(const Immovable
&) = delete;
30 Immovable
& operator=(const Immovable
&) = delete;
33 static_assert(std::is_invocable_r_v
<Immovable
, Immovable(*)()>);
34 static_assert(std::is_invocable_r_v
<const Immovable
, Immovable(*)()>);
35 static_assert(std::is_invocable_r_v
<Immovable
, const Immovable(*)()>);