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// 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-tidy-linelength
// xfail-android: FIXME(#10381)
// compile-flags:-g
// debugger:set print union on
// debugger:rbreak zzz
// debugger:run
// debugger:finish
// debugger:print case1
// check:$1 = {{Case1, 0, 31868, 31868, 31868, 31868}, {Case1, 0, 2088533116, 2088533116}, {Case1, 0, 8970181431921507452}}
// debugger:print case2
// check:$2 = {{Case2, 0, 4369, 4369, 4369, 4369}, {Case2, 0, 286331153, 286331153}, {Case2, 0, 1229782938247303441}}
// debugger:print case3
// check:$3 = {{Case3, 0, 22873, 22873, 22873, 22873}, {Case3, 0, 1499027801, 1499027801}, {Case3, 0, 6438275382588823897}}
// debugger:print univariant
// check:$4 = {-1}
// NOTE: This is a copy of the non-generic test case. The `Txx` type parameters have to be
// substituted with something of size `xx` bits and the same alignment as an integer type of the
// same size.
// 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 Regular<T16, T32, T64> {
Case1(T64, T16, T16, T16, T16),
Case2(T64, T32, T32),
Case3(T64, T64)
}
enum Univariant<T64> {
TheOnlyCase(T64)
}
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 case1: Regular<u16, u32, u64> = Case1(0_u64, 31868_u16, 31868_u16, 31868_u16, 31868_u16);
// 0b0001000100010001000100010001000100010001000100010001000100010001 = 1229782938247303441
// 0b00010001000100010001000100010001 = 286331153
// 0b0001000100010001 = 4369
// 0b00010001 = 17
let case2: Regular<i16, i32, i64> = Case2(0_i64, 286331153_i32, 286331153_i32);
// 0b0101100101011001010110010101100101011001010110010101100101011001 = 6438275382588823897
// 0b01011001010110010101100101011001 = 1499027801
// 0b0101100101011001 = 22873
// 0b01011001 = 89
let case3: Regular<i16, i32, i64> = Case3(0_i64, 6438275382588823897_i64);
let univariant = TheOnlyCase(-1_i64);
zzz();
}
fn zzz() {()}
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