1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
|
// Copyright (C) 2019-2023 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-options "-std=gnu++2a" }
// { dg-do compile { target c++2a } }
#include <concepts>
static_assert( ! std::regular_invocable<int> );
static_assert( std::regular_invocable<int()> );
static_assert( std::regular_invocable<int(*)()> );
static_assert( std::regular_invocable<int(&)()> );
static_assert( ! std::regular_invocable<int(), int> );
static_assert( ! std::regular_invocable<int() const> );
static_assert( std::regular_invocable<int(const long*, short), long*, char> );
struct A;
static_assert( std::regular_invocable<int A::*, const A&> );
static_assert( ! std::regular_invocable<void (A::*)(long&), const A*, long&> );
static_assert( std::regular_invocable<void (A::*)(long&) const, A*, long&> );
struct F
{
void operator()() const;
void operator()(int);
};
static_assert( std::regular_invocable<F> );
static_assert( std::regular_invocable<F, int> );
static_assert( std::regular_invocable<const F&> );
static_assert( ! std::regular_invocable<const F&, int> );
|
