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fix typo

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Alexis Beingessner 10 years ago committed by Manish Goregaokar
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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 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 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` 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. monomorphization.
Similarly `Result<(), ()>` and `Option<()>` are effectively just fancy `bool`s. Similarly `Result<(), ()>` and `Option<()>` are effectively just fancy `bool`s.

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