Author: Stan Eisenstat
Subject: Re: [Cs223] what is isEmpty() checking?
Date: Wednesday, 18 Mar 2020, 17:22:58

    > Message Posted By: Unknown
    >
    > What specifically is isEmpty() checking? In the spec, it says "Return true
    > if Deque *D is empty". Does this mean return true if the pointer to the H
    > stack and T stack both point to null?

isEmptyD() returns true when the Deque does not contain any
items.  How you detect this is implementation-dependent.

--Stan-