[libcxx-commits] [libcxx] [libcxx] Put `std::monostate` in `<utility>` (PR #128373)

[Nikolas Klauser via libcxx-commits]

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@@ -0,0 +1,47 @@
+//===----------------------------------------------------------------------===//
+//
+// 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, c++23
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philnik777 wrote:

Yes. This was introduced in #89499.

https://github.com/llvm/llvm-project/pull/128373