Converting a C++ Iterator into an Iterator over a Member (Select iterator?)

Question

In C#, I can create an iterator (or IEnumerable in C# land) which takes another iterator and selects a member of the original type:

class ParentType
{
    public MemberType member { get; private set; }
}

// And somewhere else

IEnumerable<MemberType> getMembers(IEnumerable<ParentType> parents)
{
    for each (ParentType parent in parents)
        yield return parent.member;
}

How would I do a similar operation in C++, where I want to basically take an iterator of a type, and return an iterator which iterates over a particular member?