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steveklabnik 2017-03-15 14:06:57 -04:00
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first-edition/src/error-handling.md
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@ -1113,7 +1113,7 @@ The first two are a result of `Error` requiring impls for both `Debug` and
`Display`. The latter two are from the two methods defined on `Error`. The
power of `Error` comes from the fact that all error types impl `Error`, which
means errors can be existentially quantified as a
[trait object](/trait-objects.html).
[trait object](trait-objects.html).
This manifests as either `Box<Error>` or `&Error`. Indeed, the `cause` method
returns an `&Error`, which is itself a trait object. We'll revisit the
`Error` trait's utility as a trait object later.