src/test/run-pass/type-sizes.rs

   1 // Copyright 2012 The Rust Project Developers. See the COPYRIGHT
   2 // file at the top-level directory of this distribution and at
   3 // http://rust-lang.org/COPYRIGHT.
   4 //
   5 // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
   6 // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
   7 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
   8 // option. This file may not be copied, modified, or distributed
   9 // except according to those terms.
  10
  11 // xfail-test
  12 use sys::rustrt::size_of;
  13 extern mod std;
  14
  15 pub fn main() {
  16     assert!((size_of::<u8>() == 1 as uint));
  17     assert!((size_of::<u32>() == 4 as uint));
  18     assert!((size_of::<char>() == 4 as uint));
  19     assert!((size_of::<i8>() == 1 as uint));
  20     assert!((size_of::<i32>() == 4 as uint));
  21     assert!((size_of::<{a: u8, b: i8}>() == 2 as uint));
  22     assert!((size_of::<{a: u8, b: i8, c: u8}>() == 3 as uint));
  23     // Alignment causes padding before the char and the u32.
  24
  25     assert!(size_of::<{a: u8, b: i8, c: {u: char, v: u8}, d: u32}>() ==
  26                 16 as uint);
  27     assert!((size_of::<int>() == size_of::<uint>()));
  28     assert!((size_of::<{a: int, b: ()}>() == size_of::<int>()));
  29     assert!((size_of::<{a: int, b: (), c: ()}>() == size_of::<int>()));
  30     assert!((size_of::<int>() == size_of::<{x: int}>()));
  31 }