src/test/ui/enum-discriminant/discriminant_value-wrapper.rs

   1 // run-pass
   2
   3 #![allow(enum_intrinsics_non_enums)]
   4
   5 use std::mem;
   6
   7 #[allow(unused_tuple_struct_fields)]
   8 enum ADT {
   9     First(u32, u32),
  10     Second(u64)
  11 }
  12
  13 pub fn main() {
  14     assert!(mem::discriminant(&ADT::First(0,0)) == mem::discriminant(&ADT::First(1,1)));
  15     assert!(mem::discriminant(&ADT::Second(5))  == mem::discriminant(&ADT::Second(6)));
  16     assert!(mem::discriminant(&ADT::First(2,2)) != mem::discriminant(&ADT::Second(2)));
  17
  18     let _ = mem::discriminant(&10);
  19     let _ = mem::discriminant(&"test");
  20 }