[libc-commits] [PATCH] D147813: [libc] clean up ctype negative handling

[Roland Illig via Phabricator via libc-commits]

rillig added a comment.

The implementation of the `<ctype.h>` functions only needs to accept EOF or a value representable as `unsigned char`. Testing the functions with other negative numbers may invoke undefined behavior, as the implementation need not handle these numbers. Therefore, the words "such as" from the commit message sound misleading to me.


Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D147813/new/

https://reviews.llvm.org/D147813