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Remove duplicate sentence fragment from mem::zeroed doc

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David Tolnay 2020-06-17 17:17:07 -07:00
parent e75fa896ba
commit 2da9ca72bc
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1 changed files with 4 additions and 4 deletions
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src/libcore/mem/mod.rs
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@ -583,10 +583,10 @@ pub const fn needs_drop<T>() -> bool {
///
/// There is no guarantee that an all-zero byte-pattern represents a valid value
/// of some type `T`. For example, the all-zero byte-pattern is not a valid value
/// for reference types (`&T`, `&mut T`) and functions pointers. Using `zeroed` on
/// such types on such types causes immediate [undefined behavior][ub] because
/// [the Rust compiler assumes][inv] that there always is a valid value in a
/// variable it considers initialized.
/// for reference types (`&T`, `&mut T`) and functions pointers. Using `zeroed`
/// on such types causes immediate [undefined behavior][ub] because [the Rust
/// compiler assumes][inv] that there always is a valid value in a variable it
/// considers initialized.
///
/// This has the same effect as [`MaybeUninit::zeroed().assume_init()`][zeroed].
/// It is useful for FFI sometimes, but should generally be avoided.