"Signed integers are two's complement" from CppCon is now online!
https://www.youtube.com/watch?v=JhUxIVf1qok …
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Rust doesn’t suffer from the loop optimization problems because your idiomatic loop induction variables are pointer-sized instead of 32 bits, but it might suffer from the other problems because rustc isn’t allowed to assume UB from signed overflow. How much does that matter?
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I’m interested in separating out the perf problems from wrapping signed overflow in *C* (https://gist.github.com/rygorous/e0f055bfb74e3d5f0af20690759de5a7 …) and the problems not specific to C.
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