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Like the that your hobby might be opening Rust code, searching unsafe just for the thrills :)

Edit: Jesus kids, learn a little chill it was a joke. Someone didn’t like this so much they went through and downvoted all my other posts they could. Wow... that’s real serious.

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It was mentioned in the README, and stood out to me as surprising (surely you don't need unsafe to cast from unsigned to signed bytes?)

Without knowing enough about Rust to speak authoritatively... u8 can represent larger integers than i8 (no sign bit). Surely it's not completely safe.

Hmmm. I was assuming this was just changing interpretations of the same underlying 8 bits. No?

Edit: yeah, “Casting between two integers of the same size (e.g. i32 -> u32) is a no-op” (https://doc.rust-lang.org/reference/expressions/operator-exp...)

Yup, fair enough.

`mem::transmute` is roughly equivalent to a `reinterpret_cast` in C++. It treats the bits of a u8 as an i8.

In the Rust definition of safety (mutable xor shared, no data races, memory safety, etc), treating the bits of a u8 as an i8 is safe and can be done with an `as` cast.

Thanks for clarifying that for me!

It's a quote from TFA

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