Function fib_recursive

tests/binary/fibonacci/src/main.rs:19–25

(n: usize)

}

fn fib_recursive(n: usize) -> usize {
    match n {
        0 => 0,
        1 => 1,
        _ => fib_recursive(n - 1) + fib_recursive(n - 2),
    }
}

fn main() {
    assert!(fibonacci(0) == 0);