1//===----------------------------------------------------------------------===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8
9// UNSUPPORTED: c++03, c++11, c++14
10
11// <variant>
12
13// LWG issue 3024
14
15#include <variant>
16#include <type_traits>
17
18struct NotCopyConstructible
19{
20 NotCopyConstructible() = default;
21 NotCopyConstructible(NotCopyConstructible const&) = delete;
22};
23
24int main(int, char**)
25{
26 static_assert(!std::is_copy_constructible_v<NotCopyConstructible>);
27
28 std::variant<NotCopyConstructible> v;
29 std::variant<NotCopyConstructible> v1;
30 std::variant<NotCopyConstructible> v2(v); // expected-error {{call to implicitly-deleted copy constructor of 'std::variant<NotCopyConstructible>'}}
31 v1 = v; // expected-error-re {{object of type 'std:{{.*}}:variant<NotCopyConstructible>' cannot be assigned because its copy assignment operator is implicitly deleted}}
32}
33

source code of libcxx/test/std/utilities/variant/variant.variant/variant.assign/copy.verify.cpp