[libcxx-commits] [libcxx] [libc++] Add missing C++20 [time.point.arithmetic] (PR #143165)

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@@ -0,0 +1,39 @@
+//===----------------------------------------------------------------------===//
+//
+// 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
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maflcko wrote:

thx. (I used `// REQUIRES: std-at-least-c++20` (20, not 17) instead)

https://github.com/llvm/llvm-project/pull/143165