| #![feature(adt_const_params, unsized_const_params)] | |
| #![allow(incomplete_features)] | |
| use std::marker::UnsizedConstParamTy; | |
| #[derive(Eq, PartialEq)] | |
| struct Foo<T>(T); | |
| trait Other {} | |
| impl<T> UnsizedConstParamTy for Foo<T> where T: Other + UnsizedConstParamTy {} | |
| fn foo<const N: Foo<u8>>() {} | |
| //~^ ERROR `Foo<u8>` must implement `ConstParamTy` to be used as the type of a const generic parameter | |
| //~| NOTE `u8` must implement `Other`, but it does not | |
| fn main() {} |