Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Path: utzoo!mnetor!uunet!nbires!hao!boulder!dennis
From: dennis@boulder.Colorado.EDU (Dennis Heimbigner)
Newsgroups: comp.lang.prolog
Subject: sbprolog problem
Message-ID: <2758@sigi.Colorado.EDU>
Date: Thu, 29-Oct-87 15:33:58 EST
Article-I.D.: sigi.2758
Posted: Thu Oct 29 15:33:58 1987
Date-Received: Tue, 3-Nov-87 07:07:05 EST
Sender: news@sigi.Colorado.EDU
Reply-To: dennis@boulder.Colorado.EDU ()
Distribution: na
Organization: University of Colorado, Boulder
Lines: 15


I am having a problem  starting up sbprolog on $readloop.
It dies in strlen with a null string pointer.
Using dbx, it appears that b_TRIMBUFF is at line 328, which is:

    if (len<0) len = strlen(get_name(ptr));

The problem is that ptr->name is nil.
Any idea what is going wrong?
I am running  on a vanilla sun 3/75 using SunOS 3.2.

Dennis Heimbigner
Computer Science Dept.
University of Colorado, Boulder
(dennis@boulder.colorado.edu)