| //@ run-pass |
| |
| use std::ops::Add; |
| |
| fn foo<T: Add<Output=T> + Clone>([x, y, z]: [T; 3]) -> (T, T, T) { |
| (x.clone(), x.clone() + y.clone(), x + y + z) |
| } |
| fn bar(a: &'static str, b: &'static str) -> [&'static str; 4] { |
| [a, b, b, a] |
| } |
| |
| fn main() { |
| assert_eq!(foo([1, 2, 3]), (1, 3, 6)); |
| |
| let [a, b, c, d] = bar("foo", "bar"); |
| assert_eq!(a, "foo"); |
| assert_eq!(b, "bar"); |
| assert_eq!(c, "bar"); |
| assert_eq!(d, "foo"); |
| |
| let [a, _, _, d] = bar("baz", "foo"); |
| assert_eq!(a, "baz"); |
| assert_eq!(d, "baz"); |
| |
| let out = bar("baz", "foo"); |
| let [a, xs @ .., d] = out; |
| assert_eq!(a, "baz"); |
| assert_eq!(xs, ["foo", "foo"]); |
| assert_eq!(d, "baz"); |
| } |
