src/test/ui/traits/fmt-pointer-trait.rs

   1 // run-pass
   2 use std::ptr;
   3 use std::rc::Rc;
   4 use std::sync::Arc;
   5
   6 fn main() {
   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");
  11
  12     let _ = format!("{:p}{:p}{:p}",
  13                     rc, arc, b);
  14
  15     if cfg!(target_pointer_width = "32") {
  16         assert_eq!(format!("{:#p}", p),
  17                    "0x00000000");
  18     } else {
  19         assert_eq!(format!("{:#p}", p),
  20                    "0x0000000000000000");
  21     }
  22     assert_eq!(format!("{:p}", p),
  23                "0x0");
  24 }