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attempt to clarify align_to docs #105245

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Dec 9, 2022
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attempt to clarify align_to docs #105245

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18 changes: 10 additions & 8 deletions library/core/src/slice/mod.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -3468,10 +3468,11 @@ impl<T> [T] {
/// maintained.
///
/// This method splits the slice into three distinct slices: prefix, correctly aligned middle
/// slice of a new type, and the suffix slice. The method may make the middle slice the greatest
/// length possible for a given type and input slice, but only your algorithm's performance
/// should depend on that, not its correctness. It is permissible for all of the input data to
/// be returned as the prefix or suffix slice.
/// slice of a new type, and the suffix slice. How exactly the slice is split up is not
/// specified; the middle part may be smaller than necessary. However, if this fails to return a
/// maximal middle part, that is because code is running in a context where performance does not
/// matter, such as a sanitizer attempting to find alignment bugs. Regular code running
/// in a default (debug or release) execution *will* return a maximal middle part.
///
/// This method has no purpose when either input element `T` or output element `U` are
/// zero-sized and will return the original slice without splitting anything.
Expand Down Expand Up @@ -3529,10 +3530,11 @@ impl<T> [T] {
/// types is maintained.
///
/// This method splits the slice into three distinct slices: prefix, correctly aligned middle
/// slice of a new type, and the suffix slice. The method may make the middle slice the greatest
/// length possible for a given type and input slice, but only your algorithm's performance
/// should depend on that, not its correctness. It is permissible for all of the input data to
/// be returned as the prefix or suffix slice.
/// slice of a new type, and the suffix slice. How exactly the slice is split up is not
/// specified; the middle part may be smaller than necessary. However, if this fails to return a
/// maximal middle part, that is because code is running in a context where performance does not
/// matter, such as a sanitizer attempting to find alignment bugs. Regular code running
/// in a default (debug or release) execution *will* return a maximal middle part.
///
/// This method has no purpose when either input element `T` or output element `U` are
/// zero-sized and will return the original slice without splitting anything.
Expand Down