rust/src/test/ui/tail-direct.rs
2019-07-27 18:56:16 +03:00

8 lines
245 B
Rust

// run-pass
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); } }