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valvar
on Jan 18, 2021
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That XOR Trick (2020)
It's bitwise XOR in C (and most other languages, I guess).
https://en.wikipedia.org/wiki/Operators_in_C_and_C%2B%2B#Bit...
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https://en.wikipedia.org/wiki/Operators_in_C_and_C%2B%2B#Bit...