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From: zhou@brazil.psych.purdue.edu (Albert Zhou)
Newsgroups: comp.lang.pascal
Subject: Re: string ghosts
Message-ID: <11790@j.cc.purdue.edu>
Date: 3 Mar 91 09:13:09 GMT
References: <26159@adm.brl.mil> <1991Feb28.180622.137@csc.canterbury.ac.nz>
Sender: news@j.cc.purdue.edu
Reply-To: zhou@brazil.psych.purdue.edu (Albert Zhou)
Organization: Purdue University
Lines: 4

A string is like a pointer. After the length of a string becomes 0, its 
old content does not disappear. For example, x = 'I am here.'. after
you assign x = 'I', its old content 'I am here' is still available. The
only change is x[0] is 1 instead of 5 now.