rust-clippy/tests/ui/swap_ptr_to_ref.rs
2022-05-31 13:08:05 -04:00

24 lines
481 B
Rust

// run-rustfix
#![warn(clippy::swap_ptr_to_ref)]
use core::ptr::addr_of_mut;
fn main() {
let mut x = 0u32;
let y: *mut _ = &mut x;
let z: *mut _ = &mut x;
unsafe {
core::mem::swap(&mut *y, &mut *z);
core::mem::swap(&mut *y, &mut x);
core::mem::swap(&mut x, &mut *y);
core::mem::swap(&mut *addr_of_mut!(x), &mut *addr_of_mut!(x));
}
let y = &mut x;
let mut z = 0u32;
let z = &mut z;
core::mem::swap(y, z);
}