//@ run-pass #![allow(dead_code)] #![allow(deprecated)] use std::mem; fn addr_of(ptr: &T) -> usize { ptr as *const T as usize } fn is_aligned(ptr: &T) -> bool { unsafe { let addr: usize = mem::transmute(ptr); (addr % mem::min_align_of::()) == 0 } } pub fn main() { let x = Some(0u64); match x { None => panic!(), Some(ref y) => assert!(is_aligned(y)) } }