Path: utzoo!news-server.csri.toronto.edu!cs.utexas.edu!chinacat!woody
From: woody@chinacat.Unicom.COM (Woody Baker @ Eagle Signal)
Newsgroups: comp.lang.postscript
Subject: Re: defeating save/restore
Summary: there was a bug
Keywords: images, data compression,
Message-ID: <1909@chinacat.Unicom.COM>
Date: 11 Mar 91 04:24:21 GMT
References: <38972@netnews.upenn.edu>
Organization: a guest of Unicom Systems Development, Austin
Lines: 20

In article <38972@netnews.upenn.edu>, jeffe@eniac.seas.upenn.edu (George Jefferson ) writes:
> help..
> 
> I am trying to add a bit of my own postscript code 
> 
> 
> Is there a way to store a value at some low level which is not
> destroyed by restore?

I seem to remember that on at least on older version of PS, there was a bug
that allowed you to do this.  I think it was something like if you created
a string, then put a character into it with put, it would survive a
save/restore pair.  I know that Don Lancaster published some thing about it,
and even wrote code to use it, but IT IS A BUG AND IS NOT REPEATABLE
unless you have the buggy interpreter.

i.e.  Not wise to write code for others use that depends on it.

Cheers
Woody