1 #![feature(const_raw_ptr_to_usize_cast)]
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