Tracking Issue for const_swap · Issue #83163 · rust-lang/rust (original) (raw)

Provide feedback

Feature gate: #![feature(const_swap)]

This is a tracking issue for making the functions mem::swap and ptr::swap[_nonoverlapping] and some other swap related functions const fn.

mod ptr { pub const unsafe fn swap(x: *mut T, y: *mut T); }

mod mem { pub const fn swap(x: &mut T, y: &mut T); }

impl [T] { pub const fn swap(&mut self, a: usize, b: usize); }

impl<T: ?Sized> *mut T { pub const unsafe fn swap(self, with: *mut T); }

impl NonNull { pub const unsafe fn swap(self, with: NonNull); }

Implementation (mem and ptr): Constify copy related functions #83091
Implementation ([T] and *mut T ) Extend the const swap feature #90644
NonNull methods stabilized, constness moved to this gate Stabilize non_null_convenience #124498
Final commenting period (FCP)
Stabilization PR