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From: "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de>
Subject: Re: GNAT.Sockets: Timeval_Duration is in milliseconds?
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Date: Sun, 9 Dec 2007 10:33:20 +0100
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Date: 2007-12-09T10:33:22+01:00
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On Sat, 08 Dec 2007 19:45:53 -0600, tmoran@acm.org wrote:

>   The Ada 95 LRM 9.6(7) says
> "...; a value of type Duration is used to represent the length of
> an interval of time, expressed in seconds."
> 
> It would be bad practice to use a value of type Duration to represent,
> say, the number of gallons of gasoline remaining, and it would be even
> worse, because even more confusing, to use it to represent a number
> of milliseconds.

Sorry but this makes no sense. The physical entity being measured is
duration T. Gallon is a measure of volume L**3. Clearly T /= L**3. As for
seconds, milliseconds, years, centuries etc, all they fall under the
category T (duration). They are numbers expressing the *same* physical
entity. It is rather instructive to use the same type for them when
possible.

-- 
Regards,
Dmitry A. Kazakov
http://www.dmitry-kazakov.de