[libcxx-commits] [libcxx] [libc++] Implement LWG3940 (std::expected<void, E>::value() also needs E to be copy constructible) (PR #71819)

[Mark de Wever via libcxx-commits]

================
@@ -0,0 +1,27 @@
+//===----------------------------------------------------------------------===//
+// 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, c++17, c++20
+// ADDITIONAL_COMPILE_FLAGS: -Xclang -verify-ignore-unexpected=error
----------------
mordante wrote:

Why did you add this line?

https://github.com/llvm/llvm-project/pull/71819