//@ run-pass #![feature(step_trait)] use std::iter::Step; #[cfg(target_pointer_width = "16")] fn main() { assert!(Step::steps_between(&0u32, &u32::MAX).is_none()); } #[cfg(any(target_pointer_width = "32", target_pointer_width = "64"))] fn main() { assert!(Step::steps_between(&0u32, &u32::MAX).is_some()); }