Author: Stan Eisenstat
Subject: Re: [Cs223] Return from search function
Date: Wednesday, 15 Apr 2020, 18:07:02

    > Message Posted By: Unknown
    >
    > What exactly should our search function in our Hash module return? Are we
    > allowed to have two different search functions in this module that return
    > different things? In other words, are we allowed to more than just one
    > search, one insert, one create, and possible one destroy function inside
    > of our hash module?

Yes.  Your hash module may provide whatever functions
you choose.
=====

    > Given our header file is not supposed to specify the components of our
    > struct, my understanding is that our search function cannot return the
    > struct triplet itself. ...

That depends on how you defined your ADT.
=====

    >                   ...  However, in the pseudocode given to us, we are
    > supposed to figure out both NSTEPS of a key from the search function,
    >
    > (let N be the number of moves associated with P in the search table)
    >
    > and REACHED_FROM of a key from the search function
    >
    > (use the search table to print the sequence of positions & exit).
    >
    > How is it possible to do both those things from the same search function?

By returning one value through the name of the function
and another by passing a pointer to a variable whose
value is set in the function.

--Stan-