| // -*- 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++03, c++11, c++14 |
| |
| // Throwing bad_variant_access is supported starting in macosx10.13 |
| // XFAIL: with_system_cxx_lib=macosx10.12 && !no-exceptions |
| // XFAIL: with_system_cxx_lib=macosx10.11 && !no-exceptions |
| // XFAIL: with_system_cxx_lib=macosx10.10 && !no-exceptions |
| // XFAIL: with_system_cxx_lib=macosx10.9 && !no-exceptions |
| |
| // <variant> |
| // template <class Visitor, class... Variants> |
| // constexpr see below visit(Visitor&& vis, Variants&&... vars); |
| |
| #include <variant> |
| |
| #include "test_macros.h" |
| |
| struct Incomplete; |
| template<class T> struct Holder { T t; }; |
| |
| constexpr bool test(bool do_it) |
| { |
| if (do_it) { |
| std::variant<Holder<Incomplete>*, int> v = nullptr; |
| std::visit([](auto){}, v); |
| std::visit([](auto) -> Holder<Incomplete>* { return nullptr; }, v); |
| } |
| return true; |
| } |
| |
| int main(int, char**) |
| { |
| test(true); |
| #if TEST_STD_VER > 17 |
| static_assert(test(true)); |
| #endif |
| return 0; |
| } |