It has somewhat different semantics though, for instance with `?` all three func... | Hacker News

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masklinn on Nov 10, 2016 | parent | context | favorite | on: Announcing Rust 1.13

It has somewhat different semantics though, for instance with `?` all three functions can use different error types.

richardwhiuk on Nov 10, 2016 [–]

They have to be convertable though, because the function must have a single result code.

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