Ace the Rust Interview

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beginner · order 24

forget is safe — and still a choice

own-fn-06Related book chapters: 5 (optional — this page is complete on its own)mem-forgetleak

Slug: own-fn-06 · Paired reading: Chapter 5

Prompt

Bomb increments a shared Cell<usize> counter in Drop. fn drop_counts(n: usize) -> usize creates n bombs and drops them normally. fn forget_counts(n: usize) -> usize creates n bombs and mem::forgets each — Drop must not run. Return the counter value.