| // -*- C++ -*- |
| //===----------------------------------------------------------------------===// |
| // |
| // 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++98, c++03, c++11, c++14 |
| |
| // <variant> |
| |
| // template <class ...Types> class variant; |
| |
| // template <class T> |
| // variant& operator=(T&&) noexcept(see below); |
| |
| #include <variant> |
| #include <string> |
| #include <memory> |
| |
| int main(int, char**) |
| { |
| std::variant<int, int> v1; |
| std::variant<long, long long> v2; |
| std::variant<char> v3; |
| v1 = 1; // expected-error {{no viable overloaded '='}} |
| v2 = 1; // expected-error {{no viable overloaded '='}} |
| v3 = 1; // expected-error {{no viable overloaded '='}} |
| |
| std::variant<std::string, float> v4; |
| std::variant<std::string, double> v5; |
| std::variant<std::string, bool> v6; |
| v4 = 1; // expected-error {{no viable overloaded '='}} |
| v5 = 1; // expected-error {{no viable overloaded '='}} |
| v6 = 1; // expected-error {{no viable overloaded '='}} |
| |
| std::variant<int, bool> v7; |
| std::variant<int, bool const> v8; |
| std::variant<int, bool volatile> v9; |
| v7 = "meow"; // expected-error {{no viable overloaded '='}} |
| v8 = "meow"; // expected-error {{no viable overloaded '='}} |
| v9 = "meow"; // expected-error {{no viable overloaded '='}} |
| |
| std::variant<bool> v10; |
| std::variant<bool> v11; |
| std::variant<bool> v12; |
| v10 = std::true_type(); // expected-error {{no viable overloaded '='}} |
| v11 = std::unique_ptr<char>(); // expected-error {{no viable overloaded '='}} |
| v12 = nullptr; // expected-error {{no viable overloaded '='}} |
| } |