Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!uunet!decwrl!ucbvax!hplabs!hpcc01!okamoto
From: okamoto@hpcc01.HP.COM (Jeff Okamoto)
Newsgroups: comp.lang.perl
Subject: Re: Possible bug with shifting an array
Message-ID: <12150006@hpcc01.HP.COM>
Date: 16 Aug 90 16:47:52 GMT
References: <12150004@hpcc01.HP.COM>
Organization: Tendou Dojo
Lines: 22

okamoto@hpcc01.HP.COM (That's me!) said:

> I'm trying to unpack a structure that contains binary data.  My
> template is like this:

	$STRLEN = 20;
	$struct = "l i i a$STRLEN";

> After read'ing a number of bytes and unpacking, the variable that
> corresponds to the "a" above doesn't get filled with nulls, it gets
> filled with spaces, which I have verified using index.  Using "A"
> instead of "A" yields identical results.

After further experimentation, it looks as though I may be using index
incorrectly.  This is what I am using now:

	$i = index($q_dest, '\000');

Perl -w doesn't complain, but $i always returns -1.  What am I doing
wrong here?

Jeff