tests/ui/dyn-star/align.rs

   1 // revisions: normal over_aligned
   2 //[normal] check-pass
   3
   4 #![feature(dyn_star)]
   5 //~^ WARN the feature `dyn_star` is incomplete and may not be safe to use and/or cause compiler crashes
   6
   7 use std::fmt::Debug;
   8
   9 #[cfg_attr(over_aligned,      repr(C, align(1024)))]
  10 #[cfg_attr(not(over_aligned), repr(C))]
  11 #[derive(Debug)]
  12 struct AlignedUsize(usize);
  13
  14 fn main() {
  15     let x = AlignedUsize(12) as dyn* Debug;
  16     //[over_aligned]~^ ERROR `AlignedUsize` needs to be a pointer-sized type
  17 }