fn main() { assert_eq!( match [0u8; 16 * 1024] { _ => 42_usize, }, 42_usize ); assert_eq!( match [0u8; 16 * 1024] { [1, ..] => 0_usize, [0, ..] => 1_usize, _ => 2_usize, }, 1_usize ); }