2 #![feature(generic_const_exprs)]
3 #![allow(incomplete_features)]
7 impl<const N: usize> Foo for [(); N] where Self: FooImpl<{ N == 0 }> {}
9 trait FooImpl<const IS_ZERO: bool> {}
11 impl FooImpl<{ 0u8 == 0u8 }> for [(); 0] {}
13 impl<const N: usize> FooImpl<{ 0u8 != 0u8 }> for [(); N] {}
15 fn foo<T: Foo>(_v: T) {}