// run-pass use std::vec; pub fn main() { let a: Vec = vec![1, 2, 3, 4, 5]; let b: Vec = vec![6, 7, 8, 9, 0]; let mut v: Vec = a; v.extend_from_slice(&b); println!("{}", v[9]); assert_eq!(v[0], 1); assert_eq!(v[7], 8); assert_eq!(v[9], 0); }