rust/tests/ui/const-generics/raw-ptr-const-param-deref.rs

22 lines
536 B
Rust

// Checks that pointers must not be used as the type of const params.
//@ revisions: full min
#![cfg_attr(full, feature(adt_const_params))]
#![cfg_attr(full, allow(incomplete_features))]
const A: u32 = 3;
struct Const<const P: *const u32>; //~ ERROR: using raw pointers as const generic parameters
impl<const P: *const u32> Const<P> { //~ ERROR: using raw pointers as const generic parameters
fn get() -> u32 {
unsafe {
*P
}
}
}
fn main() {
assert_eq!(Const::<{&A as *const _}>::get(), 3)
}