Implementing Generic SLL node structure (wrt 9/10/98 lecture)

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3 total messages Started by Michael Szczepaniak Tue, 15 Sep 1998 00:00

#169

Author: Michael Szczepaniak
Date: Tue, 15 Sep 1998 00:00

46 lines
1751 bytes

I'm trying to create my own SLL toolkit using the generic node structure
discussed at the end of the 9/10/98 lecture.  For example, lets call the
header file with the tool/procedures to create and manipulate SLL's
SLL.h (like in the class notes).  In SLL.h we have:

struct SLLnode{
   SLLdata data;
   SLLnode *next;
};

// function prototypes of tool procedures

// function definitions of each tool/procedure

Let's call the file where main() lives work.C (like in the lecture).  In
this file we'll have:

struct SLLdata{
   char name [20];
   int age;
};

#include "SLL.h"
// other include statements like <iostream>, <strings>, etc...

void main()
{

// code for main()

}

My question is:  One of my procedures in SLL.h is SearchNode which finds
the first node that has a name that matches an input target.  How do I
reference the name field?  SLLnode->name generates errors from SLL.h
similar to:

CC: "SLL.h", line 31: error: member name undefined in class SLLnode
(1287)

I can see the usefulness of this abstraction IF I CAN GET TO THE
MEMBERS!  Enlightenment needed.

Thanks,

Michael Sz.

Re: Implementing Generic SLL node structure (wrt 9/10/98 lecture)

#170

Author: gennady gurov
Date: Tue, 15 Sep 1998 00:00

19 lines
1275 bytes

Michael Szczepaniak <mszczepaniak@earthlink.net> wrote:
: I'm trying to create my own SLL toolkit using the generic node structure
: discussed at the end of the 9/10/98 lecture.  For example, lets call the
: header file with the tool/procedures to create and manipulate SLL's
: SLL.h (like in the class notes).  In SLL.h we have:

<snip>
.
.
.

: My question is:  One of my procedures in SLL.h is SearchNode which finds
: the first node that has a name that matches an input target.  How do I
: reference the name field?  SLLnode->name generates errors from SLL.h
                 this        ^^^^^^^^^^^^^ is going to have to be SLLnode->data.name

hope this helps

-Gennady

Re: Implementing Generic SLL node structure (wrt 9/10/98 lecture)

#174

Author: Michael Szczepaniak
Date: Wed, 16 Sep 1998 00:00

25 lines
1489 bytes

Thanks!  That was VERY helpful!

Michael

gennady gurov wrote:

> Michael Szczepaniak <mszczepaniak@earthlink.net> wrote:
> : I'm trying to create my own SLL toolkit using the generic node structure
> : discussed at the end of the 9/10/98 lecture.  For example, lets call the
> : header file with the tool/procedures to create and manipulate SLL's
> : SLL.h (like in the class notes).  In SLL.h we have:
>
> <snip>
> .
> .
> .
>
> : My question is:  One of my procedures in SLL.h is SearchNode which finds
> : the first node that has a name that matches an input target.  How do I
> : reference the name field?  SLLnode->name generates errors from SLL.h
>                  this        ^^^^^^^^^^^^^ is going to have to be SLLnode->data.name
>
> hope this helps
>
> -Gennady

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