iter() behaviour for XxxMap

[hh9527]

HashMap::iter() should yield (&K, &V), not &V.

and

HashMap::iter_mut()

So does OrdMap

As same as in std.

[bodil]

But the HashMap iterator currently yields &(K, V), not &V?

The mutable iterator only yields &mut V, though, I agree it'd be better if it yielded (&K, &mut V).

[hh9527]

sorry, my mistake. only iter_mut()