Author: Stan Eisenstat
Subject: Re: [Cs223] malloc() in Qsort.c
Date: Tuesday, 31 Mar 2020, 15:47:46

    > Message Posted By: Unknown
    >
    > May we use malloc() in Qsort.c in the context of
    > Deque *S1 = malloc(sizeof(Deque));
    > OR
    > char **item = malloc(sizeof(char*)); ?

No, nor do you need to.

As you can see in Hwk4/example.c, Deque variables are
defined as

  Deque queue;

and their addresses are passed to Deque functions as in

  destroyD (&queue)

All storage allocation involving Deques is done within
Deque.c.

And there is no reason to malloc() storage for a single
char*.

Conjecture: gcc complains when you pass queue instead of
&queue to a Deque function and you are trying to avoid
the error message.

--Stan-