src/test/ui/consts/const-size_of_val-align_of_val-extern-type.rs

   1 #![feature(extern_types)]
   2 #![feature(core_intrinsics)]
   3 #![feature(const_size_of_val, const_align_of_val)]
   4
   5 use std::intrinsics::{min_align_of_val, size_of_val};
   6
   7 extern "C" {
   8     type Opaque;
   9 }
  10
  11 const _SIZE: usize = unsafe { size_of_val(&4 as *const i32 as *const Opaque) }; //~ ERROR
  12 //~| WARN this was previously accepted by the compiler but is being phased out
  13 const _ALIGN: usize = unsafe { min_align_of_val(&4 as *const i32 as *const Opaque) }; //~ ERROR
  14 //~| WARN this was previously accepted by the compiler but is being phased out
  15
  16 fn main() {}