src/test/ui/run-pass/packed/packed-struct-match.rs

   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
  11 // run-pass
  12 #![feature(repr_packed)]
  13
  14 #[repr(packed)]
  15 struct Foo1 {
  16     bar: u8,
  17     baz: usize
  18 }
  19
  20 #[repr(packed(2))]
  21 struct Foo2 {
  22     bar: u8,
  23     baz: usize
  24 }
  25
  26 #[repr(C, packed(4))]
  27 struct Foo4C {
  28     bar: u8,
  29     baz: usize
  30 }
  31
  32 pub fn main() {
  33     let foo1 = Foo1 { bar: 1, baz: 2 };
  34     match foo1 {
  35         Foo1 {bar, baz} => {
  36             assert_eq!(bar, 1);
  37             assert_eq!(baz, 2);
  38         }
  39     }
  40
  41     let foo2 = Foo2 { bar: 1, baz: 2 };
  42     match foo2 {
  43         Foo2 {bar, baz} => {
  44             assert_eq!(bar, 1);
  45             assert_eq!(baz, 2);
  46         }
  47     }
  48
  49     let foo4 = Foo4C { bar: 1, baz: 2 };
  50     match foo4 {
  51         Foo4C {bar, baz} => {
  52             assert_eq!(bar, 1);
  53             assert_eq!(baz, 2);
  54         }
  55     }
  56 }