[PATCH] D156796: [ADT] [NFC] Introduce isLower and isUpper helpers.

[James Henderson via Phabricator via llvm-commits]

jhenderson accepted this revision.
jhenderson added a comment.

LGTM. I'd add the unit test, but I'm not going to push strongly for it.



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Comment at: llvm/include/llvm/ADT/StringExtras.h:104
+
+/// Checks if character \p C is a uppercase letter as classified by "C" locale.
+inline bool isUpper(char C) { return 'A' <= C && C <= 'Z'; }
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