3 #![feature(step_trait)]
7 #[cfg(target_pointer_width = "16")]
9 assert!(Step::steps_between(&0u32, &u32::MAX).is_none());
12 #[cfg(any(target_pointer_width = "32", target_pointer_width = "64"))]
14 assert!(Step::steps_between(&0u32, &u32::MAX).is_some());