[PATCH] D25299: Add StringRef::find_lower and contains_lower

[Zachary Turner via llvm-commits]

zturner created this revision.
zturner added a reviewer: chandlerc.
zturner added a subscriber: llvm-commits.

These are replacements for the standard C api `strcasestr()`.

I chose to implement this by allocating two copies on the heap and then using existing code.  But I could also implement this using an `M*N` loop if you think that's preferable.  Neither way is ideal, but there isn't exactly a fast way to implement this.


https://reviews.llvm.org/D25299

Files:
  include/llvm/ADT/StringRef.h
  lib/Support/StringRef.cpp
  unittests/ADT/StringRefTest.cpp

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