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intermediate · order 59

Newtype around the orphan rule

trait-orphan-01Related book chapters: 10 (optional — this page is complete on its own)orphannewtype

Slug: trait-orphan-01 · Paired reading: Chapter 10

Prompt

You cannot impl a foreign trait for a foreign type. Wrap Vec<i32> in struct Sorted(Vec<i32>) and impl FromIterator<i32> so collect::<Sorted>() sorts ascending.