tests/ui/swap_ptr_to_ref_unfixable.rs

   1 #![warn(clippy::swap_ptr_to_ref)]
   2
   3 macro_rules! addr_of_mut_to_ref {
   4     ($e:expr) => {
   5         &mut *core::ptr::addr_of_mut!($e)
   6     };
   7 }
   8
   9 fn main() {
  10     let mut x = 0u32;
  11     let y: *mut _ = &mut x;
  12
  13     unsafe {
  14         core::mem::swap(addr_of_mut_to_ref!(x), &mut *y);
  15         core::mem::swap(&mut *y, addr_of_mut_to_ref!(x));
  16         core::mem::swap(addr_of_mut_to_ref!(x), addr_of_mut_to_ref!(x));
  17     }
  18 }