rust - https://github.com/rust-lang/rust

Age	Commit message (Collapse)	Author	Lines
2023-03-11	Move `Option::as_slice` to an always-sound implementation	Scott McMurray	-5/+13
	This approach depends on CSE to not have any branches or selects when the guessed offset is correct -- which it always will be right now -- but to also be sound (just less efficient) if the layout algorithms change such that the guess is incorrect.
2023-03-01	Add `Option::as_slice`(`_mut`)	Andre Bogus	-0/+28
	This adds the following functions: * `Option<T>::as_slice(&self) -> &[T]` * `Option<T>::as_slice_mut(&mut self) -> &[T]` The `as_slice` and `as_slice_mut` functions benefit from an optimization that makes them completely branch-free. Note that the optimization's soundness hinges on the fact that either the niche optimization makes the offset of the `Some(_)` contents zero or the mempory layout of `Option<T>` is equal to that of `Option<MaybeUninit<T>>`.