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// 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");
}
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