src/test/ui/ptr_ops/issue-80309-safe.rs

   1 // run-pass
   2 // compile-flags: -O
   3
   4 // Regression test for issue #80309
   5
   6 pub fn zero(x: usize) -> usize {
   7     std::ptr::null::<i8>().wrapping_add(x) as usize - x
   8 }
   9 pub fn qux(x: &[i8]) -> i8 {
  10     x[zero(x.as_ptr() as usize)]
  11 }
  12
  13 fn main() {
  14     let z = vec![42, 43];
  15     println!("{}", qux(&z));
  16 }