Docs: suggest uN::checked_sub instead of check-then-unchecked
#124701
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As of 124114 it's exactly the same in codegen, so might as well not use `unsafe`. Note that this is only for *unsigned*, since the overflow conditions for `iN::checked_sub` are more complicated.
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…iaskrgr Rollup of 8 pull requests Successful merges: - rust-lang#123356 (Reduce code size of `thread::set_current`) - rust-lang#124159 (Move thread parking to `sys::sync`) - rust-lang#124293 (Let miri and const eval execute intrinsics' fallback bodies) - rust-lang#124677 (Set non-leaf frame pointers on Fuchsia targets) - rust-lang#124692 (We do not coerce `&mut &mut T -> *mut mut T`) - rust-lang#124698 (Rewrite `rustdoc-determinism` test in Rust) - rust-lang#124700 (Remove an unnecessary cast) - rust-lang#124701 (Docs: suggest `uN::checked_sub` instead of check-then-unchecked) r? `@ghost` `@rustbot` modify labels: rollup
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Rollup merge of rust-lang#124701 - scottmcm:unchecked_sub_docs, r=Nilstrieb Docs: suggest `uN::checked_sub` instead of check-then-unchecked As of rust-lang#124114 it's exactly the same in codegen, so might as well not use `unsafe`. Note that this is only for *unsigned*, since the overflow conditions for `iN::checked_sub` are more complicated.
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As of #124114 it's exactly the same in codegen, so might as well not use
unsafe.Note that this is only for unsigned, since the overflow conditions for
iN::checked_subare more complicated.