Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!ncar!unmvax!brainerd
From: brainerd@unmvax.unm.edu (Walt Brainerd)
Newsgroups: comp.lang.fortran
Subject: Re: Pointer examples and 8x
Summary: Oops
Message-ID: <167@unmvax.unm.edu>
Date: 22 Jun 89 23:53:06 GMT
References: <638hallidayd@yvax.byu.edu>
Organization: University of New Mexico at Albuquerque
Lines: 27

In article <638hallidayd@yvax.byu.edu>, hallidayd@yvax.byu.edu writes:
> By the way Walt, even your Fortran 8x example needs only one pointer (for the
> walk) 
> 
You are right, but two are needed for the insertion, anyway.

I warned you that there probably would be bugs in the examples.
Of course, I put in a couple just to see if anyone is paying attention!

> Thus the construct
> 
>          TRAIL_PTR = TMP_PTR
> 
> used in Walt's code will accomplish the wrong thing, ...

It sure does do the wrong thing:  = should be =>, of course.

The following lines do indeed fix another error.  Just fell asleep
while either coding or typing, I guess!

>          TMP_L % NEXT => L   ! Modified
>          L => TMP_L          ! lines

Has anyone seen Bob ("walk thru") Allison's nonrecursive version
of my tree printing routine, yet?

Walt Brainerd  Unicomp, Inc.  brainerd@unmvax.cs.unm.edu