From: Ludovic Brenta <ludovic@ludovic-brenta.org>
Subject: Re: AW: Translating an embedded C algorithm
Date: Thu, 18 Jan 2007 09:49:48 +0100
Date: 2007-01-18T09:49:48+01:00 [thread overview]
Message-ID: <87k5zk7m8j.fsf@ludovic-brenta.org> (raw)
In-Reply-To: uhmz4hy55q.fsf@hod.lan.m-e-leypold.de
Markus E Leypold writes:
> Ludovic Brenta <ludovic@ludovic-brenta.org> writes:
>> Right, and there would be no need for a silly INVALID_TEMPERATURE.
>> What *is* an invalid temperature anyway? One that needs crutches?
>> One that is excused from military service? And why would you ever
>> return an invalid temperature to your caller? etc. etc.
>
> | >> --| Temperature in ºC x 10. INVALID_TEMPERATURE if out of range.
>
> If the sensor is out of order or the temperature leaves the range
> where it functions properly?
>
> :-).
My point it this: if the sensor is out of order, then there is no
known temperature; not a known "invalid" temperature. The proper way
to handle that in Ada is with an exception, not a special value of
type Degrees_C.
--
Ludovic Brenta.
next prev parent reply other threads:[~2007-01-18 8:49 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <E473CA319B6D514981A06AE6742A1FD82B067D@GLDMS10607.goldlnk.rootlnka.net>
2007-01-17 7:07 ` AW: Translating an embedded C algorithm Grein, Christoph (Fa. ESG)
2007-01-17 10:26 ` Ludovic Brenta
2007-01-17 16:44 ` Markus E Leypold
2007-01-18 8:49 ` Ludovic Brenta [this message]
2007-01-18 9:53 ` Markus E Leypold
2007-01-19 9:33 ` Stephen Leake
2007-01-19 19:23 ` Cesar Rabak
2007-01-19 20:27 ` Robert A Duff
2007-01-19 23:15 ` Cesar Rabak
2007-01-20 9:54 ` Dmitry A. Kazakov
2007-01-20 21:03 ` AW: " Jeffrey Carter
2007-01-20 21:38 ` Robert A Duff
2007-01-22 2:30 ` Jeffrey Carter
2007-01-23 7:43 ` Stephen Leake
2007-01-23 19:34 ` Jeffrey R. Carter
[not found] ` <1%trh.15628$X72.889@newsread3.news.pas.earthlink.net>
2007-01-17 18:44 ` Niklas Holsti
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