Author: Stan Eisenstat
Subject: Re: [Cs223] Double pointers to deque
Date: Sunday, 29 Mar 2020, 15:13:00

    > Message Posted By: Unknown
    >
    > Why do the Deque.c functions use pointers to Deques (aka pointers to
    > pointers to deques), rather than just Deques (aka pointers to deques)?

To allow greater freedom in how the Deque ADT is
implemented.  See my earlier postings for details.
=====

    > In Deque.c, Is the best way to access the deque fields to use this format:
    > (*d)->H?

Yes.  The parentheses are necessary because *d->H is
equivalent to *(d->H), which is not what you want.

--Stan-