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From: Robert Dewar <robert_dewar@my-deja.com>
Subject: Re: Ada safety road Was: Which is right ...
Date: 1999/06/09
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In article <yeclndu44z8.fsf@king.cts.com>,
  Keith Thompson <kst@cts.com> wrote:
> This is why the authors of Ada (both 83 and 95) made such an
> effort to minimize the number of cases where this can happen,
> and to clearly document the cases that couldn't reasonably be
> avoided.

I think more could have been done, particularly in the area
of uninitialized variables. For simple variables, I like the
CDL approach which says that there must not exist any static
paths through the program allowing a simple variable to be
undefined (i.e. no ud chain can reach from a reference to a
declaration with no initialization). This worked very well
in CDL in practice (CDL = Koster's Compiler Definition
Language).


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