src/test/ui/unsized-tuple-impls.rs

   1 // run-pass
   2
   3 #![feature(unsized_tuple_coercion)]
   4
   5 use std::collections::HashSet;
   6
   7 fn main() {
   8     let x : &(i32, i32, [i32]) = &(0, 1, [2, 3]);
   9     let y : &(i32, i32, [i32]) = &(0, 1, [2, 3, 4]);
  10     let mut a = [y, x];
  11     a.sort();
  12     assert_eq!(a, [x, y]);
  13
  14     assert_eq!(&format!("{:?}", a), "[(0, 1, [2, 3]), (0, 1, [2, 3, 4])]");
  15
  16     let mut h = HashSet::new();
  17     h.insert(x);
  18     h.insert(y);
  19     assert!(h.contains(x));
  20     assert!(h.contains(y));
  21 }