7 let p: *const u8 = ptr::null();
8 let rc = Rc::new(1usize);
9 let arc = Arc::new(1usize);
10 let b = Box::new("hi");
12 let _ = format!("{:p}{:p}{:p}",
15 if cfg!(target_pointer_width = "32") {
16 assert_eq!(format!("{:#p}", p),
19 assert_eq!(format!("{:#p}", p),
20 "0x0000000000000000");
22 assert_eq!(format!("{:p}", p),