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From: gyro@cymbal.reasoning.COM (Scott Layson Burson)
Newsgroups: comp.lang.scheme
Subject: How to pass parameter by reference in scheme?
Message-ID: <9103040333.AA11169@cymbal.reasoning.com.>
Date: 4 Mar 91 03:33:59 GMT
References: <JINX.91Mar2101750@chamarti.ai.mit.edu>
Sender: daemon@athena.mit.edu (Mr Background)
Reply-To: Gyro@reasoning.com
Organization: The Internet
Lines: 14


   Date: 2 Mar 91 15:17:50 GMT
   From: "Guillermo J. Rozas" <jinx@zurich.ai.mit.edu>

   [...]

   This is not quite passing a variable by reference.  It is closer to
   Algol 60's call-by-name, and mimics some of its implementations.  If
   you use this pervasively, you will notice subtle differences with
   passing parameters by reference (e.g. Jensen's device).

What is Jensen's device?  This sounds interesting.

-- Scott