3 #![warn(clippy::swap_ptr_to_ref)]
5 use core::ptr::addr_of_mut;
9 let y: *mut _ = &mut x;
10 let z: *mut _ = &mut x;
13 core::mem::swap(&mut *y, &mut *z);
14 core::mem::swap(&mut *y, &mut x);
15 core::mem::swap(&mut x, &mut *y);
16 core::mem::swap(&mut *addr_of_mut!(x), &mut *addr_of_mut!(x));
23 core::mem::swap(y, z);