[libcxx-commits] [libcxx] [libc++] Fix ungetc failing after xsgetn (PR #210951)

[Louis Dionne via libcxx-commits]

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@@ -383,7 +392,41 @@ private:
   bool __owns_ib_;
   bool __always_noconv_;
 
-  bool __read_mode();
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ldionne wrote:

Let's keep this definition in the dylib for now for ABI compatibility.

Let's also file an issue to check whether we can actually remove that. You can assign that one to me, I'll do some investigation.

https://github.com/llvm/llvm-project/pull/210951