| // Copyright 2013 The Rust Project Developers. See the COPYRIGHT |
| // file at the top-level directory of this distribution and at |
| // http://rust-lang.org/COPYRIGHT. |
| // |
| // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or |
| // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license |
| // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your |
| // option. This file may not be copied, modified, or distributed |
| // except according to those terms. |
| |
| |
| use std::mem; |
| |
| fn addr_of<T>(ptr: &T) -> usize { |
| ptr as *const T as usize |
| } |
| |
| fn is_aligned<T>(ptr: &T) -> bool { |
| unsafe { |
| let addr: usize = mem::transmute(ptr); |
| (addr % mem::min_align_of::<T>()) == 0 |
| } |
| } |
| |
| pub fn main() { |
| let x = Some(0u64); |
| match x { |
| None => panic!(), |
| Some(ref y) => assert!(is_aligned(y)) |
| } |
| } |
