rust/src/test/run-pass/tail-direct.rs
2018-12-25 21:08:33 -07:00

6 lines
232 B
Rust

pub fn main() { assert!((even(42))); assert!((odd(45))); }
fn even(n: isize) -> bool { if n == 0 { return true; } else { return odd(n - 1); } }
fn odd(n: isize) -> bool { if n == 0 { return false; } else { return even(n - 1); } }