Path: utzoo!utgpu!news-server.csri.toronto.edu!rutgers!rochester!kodak!atexnet!lawrence
From: lawrence@epps.kodak.com (Scott Lawrence)
Newsgroups: comp.lang.perl
Subject: undef of dbm elements?
Message-ID: <5073@atexnet.UUCP>
Date: 2 Jan 91 16:59:27 GMT
Sender: news@atexnet.UUCP
Reply-To: lawrence@epps.kodak.com
Organization: Electronic Pre-Press Systems, a Kodak company
Lines: 28


The perl man page says "Undef will pobably not do what you expect on ... dbm 
array values".  

What exactly _does_ it do?

Given 
   
        dbmopen( %Control, "dbmfilename", 0660 );

will

        undef $Control{ "foo" };

remove the key (and associated value) "foo" from the file "dbmfilename"?

If not, is there a way to do so?

Please reply by mail - I will summarize to the net.
-- 
Scott Lawrence         <lawrence@epps.kodak.com>       <s.lawrence@ieee.org>
Atex Advanced Publishing Systems,     Voice: 508-670-4023  Fax: 508-670-4033
Electronic Pre-Press Systems; 165 Lexington St. 400/165L; Billerica MA 01821
--
---
Scott Lawrence         <lawrence@epps.kodak.com>       <s.lawrence@ieee.org>
Atex Advanced Publishing Systems,     Voice: 508-670-4023  Fax: 508-670-4033
Electronic Pre-Press Systems; 165 Lexington St. 400/165L; Billerica MA 01821