// https://doc.rust-lang.org/error_codes/E0323.html
#![allow(unused)]
fn main() {
trait Foo {
    type N;
}

struct Bar;

impl Foo for Bar {// { dg-error "missing N in implementation of trait .Foo." }
    const N : u32 = 0; // { dg-error "item .N. is an associated const, which does not match its trait .Foo." }
}
}