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// Copyright 2016 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::size_of;
enum E {
A = 1,
B = 2,
C = 3,
}
struct S {
a: u16,
b: u8,
e: E,
}
fn main() {
assert_eq!(size_of::<E>(), 1);
assert_eq!(size_of::<Option<E>>(), 1);
assert_eq!(size_of::<Result<E, ()>>(), 1);
assert_eq!(size_of::<Option<S>>(), size_of::<S>());
let enone = None::<E>;
let esome = Some(E::A);
if let Some(..) = enone {
panic!();
}
if let None = esome {
panic!();
}
}
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