Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!asuvax!ncar!unmvax!bbx!bbxsda!scott
From: scott@bbxsda.UUCP (Scott Amspoker)
Newsgroups: comp.lang.c
Subject: Re: Deleting linked lists.
Message-ID: <1791@bbxsda.UUCP>
Date: 28 Mar 91 14:58:25 GMT
References: <2636@borg.cs.unc.edu> <548@bria>
Reply-To: scott@bbxsda.UUCP (Scott Amspoker)
Distribution: na
Organization: Basis International,  Albuquerque, NM
Lines: 17

In article <548@bria> uunet!bria!mike writes:
>	while ( ptr != NULL ) {
>
>Personally, I think that the [not shown] `while' is not very nice; you should
>explicitly test for NULL -- after all, a pointer is not an integer,
>right?

...and neither is a '0' when compare to a pointer which is what is implied
by 'while (ptr)'.  The C compiler will assume a compare to a null pointer
in such a case.

-- 
Scott Amspoker                       | Touch the peripheral convex of every
Basis International, Albuquerque, NM | kind, then various kinds of blaming
(505) 345-5232                       | sound can be sent forth.
unmvax.cs.unm.edu!bbx!bbxsda!scott   |    - Instructions for a little box that
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