src/test/run-pass/intrinsic-alignment.rs

   1 // Copyright 2012-2015 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
  12 #![feature(intrinsics, main)]
  13
  14 mod rusti {
  15     extern "rust-intrinsic" {
  16         pub fn pref_align_of<T>() -> usize;
  17         pub fn min_align_of<T>() -> usize;
  18     }
  19 }
  20
  21 #[cfg(any(target_os = "linux",
  22           target_os = "macos",
  23           target_os = "freebsd",
  24           target_os = "dragonfly",
  25           target_os = "netbsd",
  26           target_os = "openbsd",
  27           target_os = "solaris",
  28           target_os = "emscripten"))]
  29 mod m {
  30     #[main]
  31     #[cfg(target_arch = "x86")]
  32     pub fn main() {
  33         unsafe {
  34             assert_eq!(::rusti::pref_align_of::<u64>(), 8);
  35             assert_eq!(::rusti::min_align_of::<u64>(), 4);
  36         }
  37     }
  38
  39     #[main]
  40     #[cfg(not(target_arch = "x86"))]
  41     pub fn main() {
  42         unsafe {
  43             assert_eq!(::rusti::pref_align_of::<u64>(), 8);
  44             assert_eq!(::rusti::min_align_of::<u64>(), 8);
  45         }
  46     }
  47 }
  48
  49 #[cfg(target_os = "bitrig")]
  50 mod m {
  51     #[main]
  52     #[cfg(target_arch = "x86_64")]
  53     pub fn main() {
  54         unsafe {
  55             assert_eq!(::rusti::pref_align_of::<u64>(), 8);
  56             assert_eq!(::rusti::min_align_of::<u64>(), 8);
  57         }
  58     }
  59 }
  60
  61 #[cfg(target_os = "windows")]
  62 mod m {
  63     #[main]
  64     #[cfg(target_arch = "x86")]
  65     pub fn main() {
  66         unsafe {
  67             assert_eq!(::rusti::pref_align_of::<u64>(), 8);
  68             assert_eq!(::rusti::min_align_of::<u64>(), 8);
  69         }
  70     }
  71
  72     #[main]
  73     #[cfg(target_arch = "x86_64")]
  74     pub fn main() {
  75         unsafe {
  76             assert_eq!(::rusti::pref_align_of::<u64>(), 8);
  77             assert_eq!(::rusti::min_align_of::<u64>(), 8);
  78         }
  79     }
  80 }
  81
  82 #[cfg(target_os = "android")]
  83 mod m {
  84     #[main]
  85     #[cfg(any(target_arch = "arm", target_arch = "aarch64"))]
  86     pub fn main() {
  87         unsafe {
  88             assert_eq!(::rusti::pref_align_of::<u64>(), 8);
  89             assert_eq!(::rusti::min_align_of::<u64>(), 8);
  90         }
  91     }
  92 }