[libcxx-commits] [libcxx] [libc++] Implement p0753r2 Manipulators for C++ Synchronized Buffered Ostream (PR #97955)

[Louis Dionne via libcxx-commits]

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+// -*- C++ -*-
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ldionne wrote:

Let's add a release note in `ReleaseNotes/20.rst` (since this will land after the branch).

https://github.com/llvm/llvm-project/pull/97955