error: pointers cannot be cast to integers during const eval --> $DIR/issue-52023-array-size-pointer-cast.rs:2:17 | LL | let _ = [0; (&0 as *const i32) as usize]; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ | = note: at compile-time, pointers do not have an integer value = note: avoiding this restriction via `transmute`, `union`, or raw pointers leads to compile-time undefined behavior error: aborting due to 1 previous error