3 #![feature(ptr_offset_from)]
7 let ptr1: *mut i32 = &mut a[1];
8 let ptr2: *mut i32 = &mut a[3];
10 assert_eq!(ptr2.offset_from(ptr1), 2);
11 assert_eq!(ptr1.offset_from(ptr2), -2);
12 assert_eq!(ptr1.offset(2), ptr2);
13 assert_eq!(ptr2.offset(-2), ptr1);