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Discussion on: Terrible interview question: Swap variables without a temporary

 
mortoray profile image
edA‑qa mort‑ora‑y

Yes. Presumably you want to do a real-world comparison, not a byte-for-byte comparison. There are numerous rules in Unicode on how that should be done. Thanks to combining characters, precomposed characters, ligatures, and some other features, there are numerous ways two equal strings can be encoded.

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nestedsoftware profile image
Nested Software • Edited

Interesting and a bit scary! I’d have thought it should be possible to force some kind of ordering to prevent that...