src/test/ui/consts/issue-51559.rs

   1 #![feature(const_raw_ptr_to_usize_cast)]
   2
   3 const BAR: *mut () = ((|| 3) as fn() -> i32) as *mut ();
   4 pub const FOO: usize = unsafe { BAR as usize };
   5 //~^ ERROR any use of this value will cause an error
   6 //~| WARN this was previously accepted by the compiler but is being phased out
   7
   8 fn main() {}