rust/tests/ui/cast/cast-macro-lhs.rs
2023-01-11 09:32:08 +00:00

13 lines
397 B
Rust

// Test to make sure we suggest "consider casting" on the right span
macro_rules! foo {
() => { 0 }
}
fn main() {
let x = foo!() as *const [u8];
//~^ ERROR cannot cast `usize` to a pointer that is wide
//~| NOTE creating a `*const [u8]` requires both an address and a length
//~| NOTE consider casting this expression to `*const ()`, then using `core::ptr::from_raw_parts`
}