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
46
|
//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
// REQUIRES: std-at-least-c++23
// <utility>
// template <typename T>
// [[nodiscard]] constexpr
// auto forward_like(auto&& x) noexcept -> see below;
// Mandates: T is a referenceable type (3.45 [defns.referenceable]).
#include <utility>
struct incomplete;
void test() {
int i;
(void)std::forward_like<incomplete>(i);
(void)std::forward_like<void>(i); // expected-error {{no matching function for call to 'forward_like'}}
(void)std::forward_like<const void>(i); // expected-error {{no matching function for call to 'forward_like'}}
(void)std::forward_like<volatile void>(i); // expected-error {{no matching function for call to 'forward_like'}}
(void)std::forward_like<const volatile void>(i); // expected-error {{no matching function for call to 'forward_like'}}
using fp = void();
using cfp = void() const;
using vfp = void() volatile;
using cvfp = void() const volatile;
(void)std::forward_like<fp>(i);
(void)std::forward_like<cfp>(i); // expected-error {{no matching function for call to 'forward_like'}}
(void)std::forward_like<cfp>(i); // expected-error {{no matching function for call to 'forward_like'}}
(void)std::forward_like<vfp>(i); // expected-error {{no matching function for call to 'forward_like'}}
(void)std::forward_like<cvfp>(i); // expected-error {{no matching function for call to 'forward_like'}}
using fpr = void()&;
using fprr = void()&&;
(void)std::forward_like<fpr>(i); // expected-error {{no matching function for call to 'forward_like'}}
(void)std::forward_like<fprr>(i); // expected-error {{no matching function for call to 'forward_like'}}
}
|
