mirror of
https://github.com/rust-lang/rust.git
synced 2024-10-30 14:01:51 +00:00
14 lines
241 B
Rust
14 lines
241 B
Rust
// run-pass
|
|
|
|
fn main() {
|
|
assert_eq!(count_members(&[1, 2, 3, 4]), 4);
|
|
}
|
|
|
|
fn count_members(v: &[usize]) -> usize {
|
|
match *v {
|
|
[] => 0,
|
|
[_] => 1,
|
|
[_, ref xs @ ..] => 1 + count_members(xs)
|
|
}
|
|
}
|