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Make the size of Option<NonZero*> a documented guarantee. #51396

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Jun 9, 2018
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Make the size of Option<NonZero*> a documented guarantee. #51396

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4 changes: 2 additions & 2 deletions src/libcore/num/mod.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -39,10 +39,10 @@ macro_rules! nonzero_integers {
$(
/// An integer that is known not to equal zero.
///
/// This may enable some memory layout optimization such as:
/// This enables some memory layout optimization.
/// For example, `Option<NonZeroU32>` is the same size as `u32`:
///
/// ```rust
/// # #![feature(nonzero)]
/// use std::mem::size_of;
/// assert_eq!(size_of::<Option<std::num::NonZeroU32>>(), size_of::<u32>());
/// ```
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