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
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
|
//===----------------------------------------------------------------------===//
//
// 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
//
//===----------------------------------------------------------------------===//
// UNSUPPORTED: c++03, c++11, c++14
// Throwing bad_any_cast is supported starting in macosx10.13
// UNSUPPORTED: use_system_cxx_lib && target={{.+}}-apple-macosx10.{{9|10|11|12}}
// <any>
// template <class ValueType>
// ValueType const any_cast(any const&);
//
// template <class ValueType>
// ValueType any_cast(any &);
//
// template <class ValueType>
// ValueType any_cast(any &&);
// Test instantiating the any_cast with a non-copyable type.
// This test only checks that we static_assert in any_cast when the
// constraints are not respected, however Clang will sometimes emit
// additional errors while trying to instantiate the rest of any_cast
// following the static_assert. We ignore unexpected errors in
// clang-verify to make the test more robust to changes in Clang.
// ADDITIONAL_COMPILE_FLAGS: -Xclang -verify-ignore-unexpected=error
#include <any>
struct no_copy
{
no_copy() {}
no_copy(no_copy &&) {}
no_copy(no_copy const &) = delete;
};
struct no_move {
no_move() {}
no_move(no_move&&) = delete;
no_move(no_move const&) {}
};
int main(int, char**) {
std::any a;
// expected-error-re@any:* {{{{(static_assert|static assertion)}} failed{{.*}}ValueType is required to be an lvalue reference or a CopyConstructible type}}
std::any_cast<no_copy>(static_cast<std::any&>(a)); // expected-note {{requested here}}
// expected-error-re@any:* {{{{(static_assert|static assertion)}} failed{{.*}}ValueType is required to be a const lvalue reference or a CopyConstructible type}}
std::any_cast<no_copy>(static_cast<std::any const&>(a)); // expected-note {{requested here}}
std::any_cast<no_copy>(static_cast<std::any &&>(a)); // OK
// expected-error-re@any:* {{{{(static_assert|static assertion)}} failed{{.*}}ValueType is required to be an rvalue reference or a CopyConstructible type}}
std::any_cast<no_move>(static_cast<std::any &&>(a));
return 0;
}
|
