#![feature(const_raw_ptr_deref)] use std::mem; // Make sure we error with the right kind of error on a too large slice. const TEST: () = { unsafe { let slice: *const [u8] = mem::transmute((1usize, usize::MAX)); let _val = &*slice; //~ ERROR: any use of this value will cause an error //~| slice is bigger than largest supported object //~| WARN this was previously accepted by the compiler but is being phased out } }; fn main() {}