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000163_icon-group-sender _Mon Jul 29 16:59:26 1996.msg
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Received: by cheltenham.cs.arizona.edu; Mon, 29 Jul 1996 11:17:11 MST
Message-Id: <31FCDFDE.5814@tees.ac.uk>
Date: Mon, 29 Jul 1996 16:59:26 +0100
From: Hamish Lawson <H.Lawson@tees.ac.uk>
Organization: University of Teesside
X-Mailer: Mozilla 3.0b5aGold (Win95; I)
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To: icon-group@cs.arizona.edu
Subject: What is the value of a valueless return?
References: <9606221325.AA26435@ursus.cs.arizona.edu> <31D3FA40.1435@tees.ac.uk>
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Status: O
Given a procedure p() that terminates with a valueless return statement,
what value is assigned to x when x := p() is evaluated? assuming that x
was null prior to the assignment, is there any way to test subsequently
whether the assignment succeeded?
| Hamish Lawson, School of Computing and Mathematics,
| University of Teesside, Middlesbrough, Cleveland, UK, TS1 3BA
| Tel: +44 1642 212695 Fax: +44 1642 342604
| E-mail: H.Lawson@tees.ac.uk