error[E0606]: cannot cast `usize` to a pointer that is wide | |
--> $DIR/cast-macro-lhs.rs:8:23 | |
| | |
LL | let x = foo!() as *const [u8]; | |
| ------ ^^^^^^^^^^^ creating a `*const [u8]` requires both an address and a length | |
| | | |
| consider casting this expression to `*const ()`, then using `core::ptr::from_raw_parts` | |
error: aborting due to 1 previous error | |
For more information about this error, try `rustc --explain E0606`. |