* Re: problem - linked lists for beginners
[not found] <01bd4455$7a3f0020$ef0ccfc2@grat.softnet.co.uk>
@ 1998-03-02 0:00 ` John Herro
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From: John Herro @ 1998-03-02 0:00 UTC (permalink / raw)
"Sean kenny" <SeanKenny@grat.softnet.co.uk> wrote:
> I'm trying to write a procedure that
> will add integers to a set. I want to
> set the set up as a linked list. ...
> So what do I do if this is the first
> element to be added to a null set
> ie. the first element of the linked list.
NOTE: I tried to reply directly to Sean, but the e-mail bounced, so I'm
replying to the group:
The easiest way to simplify the code for a linked list is to have one
extra (unused) link at the head of the list. This greatly simplifies the code
that adds an element to the list, because adding a link at the head of the list
is no longer a special case.
You'll find an example, with the code, in the shareware Ada Tutor program,
which you can download at http://members.aol.com/AdaTutor, or at
ftp://members.aol.com/ in the directory AdaTutor. I hope this helps.
- John Herro
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1998-03-02 0:00 ` problem - linked lists for beginners John Herro
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