Document unsafety in core::{option, hash} #71063
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cc @RalfJung |
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Co-authored-by: Mark-Simulacrum <mark.simulacrum@gmail.com>
Co-Authored-By: Mark-Simulacrum <mark.simulacrum@gmail.com>
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@Mark-Simulacrum If you don't have any other remark I think this is ready to be |
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@bors r+ rollup I agree! |
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📌 Commit a694315 has been approved by |
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…Mark-Simulacrum
Document unsafety in core::{option, hash}
Helps with rust-lang#66219.
I think that the part that will need reviewing the most is the `hash/sip.rs` file.
r? @LukasKalbertodt (or someone else from the libs team)
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Rollup of 6 pull requests Successful merges: - rust-lang#70845 (Make the `structural_match` error diagnostic for const generics clearer) - rust-lang#71063 (Document unsafety in core::{option, hash}) - rust-lang#71068 (Stabilize UNICODE_VERSION (feature unicode_version)) - rust-lang#71426 (fix error code in E0751.md) - rust-lang#71459 (Add leading 0x to offset in Debug fmt of Pointer) - rust-lang#71492 (Document unsafety in core::{panicking, alloc::layout, hint, iter::adapters::zip}) Failed merges: r? @ghost
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Apr 24, 2020
| @@ -279,10 +278,13 @@ impl<S: Sip> super::Hasher for Hasher<S> { | |||
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| // Buffered tail is now flushed, process new input. | |||
| let len = length - needed; | |||
| let left = len & 0x7; | |||
| let left = len & 0x7; // len % 8 | |||
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I expect rustc do this optimization. Why not replace the code with len % 8?
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Helps with #66219.
I think that the part that will need reviewing the most is the
hash/sip.rsfile.r? @LukasKalbertodt (or someone else from the libs team)