Fix comments for unsigned non-zero checked_add, saturating_add
#118397
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For these two methods, `other` is an ordinary unsigned integer, so it can be zero. Since the sum of non-zero and zero is always non-zero, the safety argument holds even when `other` is zero.
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…iaskrgr Rollup of 7 pull requests Successful merges: - rust-lang#115331 (optimize str::iter::Chars::advance_by) - rust-lang#118236 (Update mod comment) - rust-lang#118299 (Update `OnceLock` documentation to give a concrete 'lazy static' example, and expand on the existing example.) - rust-lang#118314 (Rename `{collections=>alloc}{tests,benches}`) - rust-lang#118341 (Simplify indenting in THIR printing) - rust-lang#118366 (Detect and reject malformed `repr(Rust)` hints) - rust-lang#118397 (Fix comments for unsigned non-zero `checked_add`, `saturating_add`) r? `@ghost` `@rustbot` modify labels: rollup
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Rollup merge of rust-lang#118397 - Zalathar:nonzero, r=WaffleLapkin Fix comments for unsigned non-zero `checked_add`, `saturating_add` While looking at rust-lang#118313, I happened to notice that two of the expanded comments appear to be slightly inaccurate. For these two methods, `other` is an ordinary unsigned integer, so it can be zero. Since the sum of non-zero and zero is always non-zero, the safety argument holds even when `other` is zero.
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While looking at #118313, I happened to notice that two of the expanded comments appear to be slightly inaccurate.
For these two methods,
otheris an ordinary unsigned integer, so it can be zero.Since the sum of non-zero and zero is always non-zero, the safety argument holds even when
otheris zero.