From: "bklungle" <bklungle@ix.netcom.com>
Subject: Re: Code Confusion.
Date: 1997/11/02
Date: 1997-11-02T14:39:32-08:00 [thread overview]
Message-ID: <63ivf4$m5@sjx-ixn5.ix.netcom.com> (raw)
In-Reply-To: 345CD154.1249E04E@eng.ua.edu
At a quick glance, it looks like your code is generating a single node loop
on itself (among other things.)
Using your constructs, one possible sequence for building a push-down stack
linked list of nodes could be as follows:
..
..
begin --lab10A
-- assuming a use clause was given for text_io (or equivalent)
put("Please enter the number of nodes desired ");
-- assuming a new and use clause was given for integer_io (or equivalent)
get(NUM_NODES); -- get integer number of nodes
skip_line; -- make sure no garbage at end of line
if NUM_NODES /= 0 then
HEAD := new LIST_NODE;
put("Please enter integer node value for node 1: ");
get(HEAD.NUM); -- get nodes integer value
skip_line; -- make sure no garbage at end of line
for i in 2 .. NUM_NODES loop
P := new LIST_NODE; -- get another dynamic node
P.NEXT := HEAD; -- link current head behind this one
HEAD := P; -- this is now the current head
put("Please enter integer node value for node " & integer'image(i) & "
");
get(P.Num);
skip_line; -- make sure no garbage at end of line
end loop;
.
.
end if;
-- Note: This is not the best, or only way to do this, only one quick way.
Cheers...bob
Supreme wrote in message <345CD154.1249E04E@eng.ua.edu>...
>In the following program I am trying to display the values of linked
>list instead my output is
>80 80 80 80 80 80
>instead of 40 50 60 70 80.
>here it is.
>procedure problem is
> type LIST_NODE;
> type NODE_PTR is access LIST_NODE;
> type LIST_NODE is record
> NUM : INTEGER;
> NEXT : NODE_PTR;
> end record;
>
>HEAD,P : NODE_PTR;
>N, NUM_NODES : INTEGER;
>begin -- lab10A
> Put("Please enter the the values of the nodes");
>Get( Num_Nodes);
>Head := new NODE;
>New_Line;
>P := Head;
> for K in 2..NUN_NODES loop
>Head.Next := P;
>P.ALL.NUM := N;
>P := P.Next;
>end loop;
> Will this allow teh user to assing 20 30 40 50 etc to the linked
>list?
>in other words
>Head.Next := P Should point the Head.next to the Pointer P and
>then P.ALL.NUM :=N should be set to the value of N ( entered by the
>user)
>then P := P.Next should allow N to be assigned to the next pointer.
>is this right??
>Peace.
>
next prev parent reply other threads:[~1997-11-02 0:00 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
1997-11-02 0:00 Code Confusion Supreme
1997-11-02 0:00 ` bklungle [this message]
1997-11-04 0:00 ` Bill
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