1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
|
// 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.
// xfail-android: FIXME(#10381)
// compile-flags:-g
// debugger:rbreak zzz
// debugger:run
// debugger:finish
// debugger:print the_a->val
// check:$1 = {{TheA, x = 0, y = 8970181431921507452}, {TheA, 0, 2088533116, 2088533116}}
// debugger:print the_b->val
// check:$2 = {{TheB, x = 0, y = 1229782938247303441}, {TheB, 0, 286331153, 286331153}}
// debugger:print univariant->val
// check:$3 = {-9747455}
#[allow(unused_variable)];
#[feature(struct_variant, managed_boxes)];
// The first element is to ensure proper alignment, irrespective of the machines word size. Since
// the size of the discriminant value is machine dependent, this has be taken into account when
// datatype layout should be predictable as in this case.
enum ABC {
TheA { x: i64, y: i64 },
TheB (i64, i32, i32),
}
// This is a special case since it does not have the implicit discriminant field.
enum Univariant {
TheOnlyCase(i64)
}
fn main() {
// In order to avoid endianess trouble all of the following test values consist of a single
// repeated byte. This way each interpretation of the union should look the same, no matter if
// this is a big or little endian machine.
// 0b0111110001111100011111000111110001111100011111000111110001111100 = 8970181431921507452
// 0b01111100011111000111110001111100 = 2088533116
// 0b0111110001111100 = 31868
// 0b01111100 = 124
let the_a = @TheA { x: 0, y: 8970181431921507452 };
// 0b0001000100010001000100010001000100010001000100010001000100010001 = 1229782938247303441
// 0b00010001000100010001000100010001 = 286331153
// 0b0001000100010001 = 4369
// 0b00010001 = 17
let the_b = @TheB (0, 286331153, 286331153);
let univariant = @TheOnlyCase(-9747455);
zzz();
}
fn zzz() {()}
|
