3 #![feature(ptr_metadata)]
14 // Test we can turn a fat pointer to array back into a thin pointer.
15 let a: *const [i32] = &[1, 2, 3];
16 let b = a as *const [i32; 2];
18 assert_eq!(*b, [1, 2]);
21 // Test conversion to an address (usize).
22 let a: *const [i32; 3] = &[1, 2, 3];
23 let b: *const [i32] = a;
24 assert_eq!(a as usize, b as *const () as usize);
26 // And conversion to a void pointer/address for trait objects too.
27 let a: *mut dyn Foo = &mut Bar;
28 let b = a as *mut () as usize;
29 let c = a as *const () as usize;
30 let d = a.to_raw_parts().0 as usize;