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by Rompect 1812 days ago
This is like the easiest thing for a compiler to detect and optimize.
1 comments

True, but something to be aware of: If the compiler uses bitwise operations to implement %, it emits special handling of negative values (it's really more of a remainder operator than a modulus). You can avoid that either by using unsigned numbers, or & as suggested:

https://godbolt.org/z/vdz59q994