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fix typo

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Alexis Beingessner 2015-07-18 09:10:01 -07:00
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commit b79d279418
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src/doc/tarpl/exotic-sizes.md
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@ -63,7 +63,7 @@ context.
Rust largely understands that any operation that produces or stores a ZST can be
reduced to a no-op. For instance, a `HashSet<T>` can be effeciently implemented
as a thin wrapper around `HashMap<T, ()>` because all the operations `HashMap`
normally does to store and retrieve keys will be completely stripped in
normally does to store and retrieve values will be completely stripped in
monomorphization.
Similarly `Result<(), ()>` and `Option<()>` are effectively just fancy `bool`s.