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Imported Upstream version 1.9.0+dfsg1
[rustc.git] / src / test / run-pass / enum-discrim-autosizing.rs
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1// Copyright 2013 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
54a0048b 11#![feature(stmt_expr_attributes)]
c34b1796 12
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13use std::mem::size_of;
14
15enum Ei8 {
16 Ai8 = -1,
17 Bi8 = 0
18}
19
20enum Eu8 {
21 Au8 = 0,
22 Bu8 = 0x80
23}
24
25enum Ei16 {
26 Ai16 = -1,
27 Bi16 = 0x80
28}
29
30enum Eu16 {
31 Au16 = 0,
32 Bu16 = 0x8000
33}
34
35enum Ei32 {
36 Ai32 = -1,
37 Bi32 = 0x8000
38}
39
40enum Eu32 {
41 Au32 = 0,
42 Bu32 = 0x8000_0000
43}
44
45enum Ei64 {
46 Ai64 = -1,
47 Bi64 = 0x8000_0000
48}
49
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50pub fn main() {
51 assert_eq!(size_of::<Ei8>(), 1);
52 assert_eq!(size_of::<Eu8>(), 1);
53 assert_eq!(size_of::<Ei16>(), 2);
54 assert_eq!(size_of::<Eu16>(), 2);
55 assert_eq!(size_of::<Ei32>(), 4);
56 assert_eq!(size_of::<Eu32>(), 4);
54a0048b 57 #[cfg(target_pointer_width = "64")]
1a4d82fc 58 assert_eq!(size_of::<Ei64>(), 8);
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59 #[cfg(target_pointer_width = "32")]
60 assert_eq!(size_of::<Ei64>(), 4);
1a4d82fc 61}