mirror of
https://github.com/rust-lang/rust-clippy
synced 2024-11-24 21:53:23 +00:00
22 lines
465 B
Rust
22 lines
465 B
Rust
#![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);
|
|
}
|