From mboxrd@z Thu Jan  1 00:00:00 1970
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From: Jeff Carter <jcarter@CapAccess.org>
Subject: Re: C like op= proposal
Date: 1999/08/18
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Date: 1999-08-18T00:00:00+00:00
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I recall something like this

A_Nice_Long_Name := @ ** 2 + @ + 1.0 / @ + C;

in a revision request. Obviously it was not incorporated into the language.

One problem with this kind of syntax can be seen from the following example:

type Rec is record
   I : Integer;
end record;

type Rec_Ptr is access all Rec;

Count : Natural := 0;

function Side_Effects return Rec_Ptr is
   Result : Rec_Pointer := new Rec;
begin -- Side_Effects
   Count := Count + 1;
   Result.I := Count;

   return Result;
end Side_Effects;

...

Side_Effects.I := @ + @ / 2 + 1;

What is the value of Count after executing this statement?

Jeff

"Now go away or I shall taunt you a second time."
Monty Python & the Holy Grail



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