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From: Ludovic Brenta <ludovic@ludovic-brenta.org>
Newsgroups: comp.lang.ada
Subject: Re: Real Time IO routines
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Date: Sun, 28 Oct 2007 12:35:57 +0100
Message-ID: <87hckbeajm.fsf@ludovic-brenta.org>
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Date: 2007-10-28T12:35:57+01:00
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Simon Wright <simon.j.wright@mac.com> writes:
> anon@anon.org (anon) writes:
>
>> Ada Purist never and I mean NEVER uses IMAGE attribute, in the body of 
>> a program. They create a package or sub-package that performs the IO 
>> functions with the use of the IMAGE attribute.
>>
>> IMAGE attribute is the last thing a programmer should use. to print
>> a value.  It is normally use for DEBUGGING ONLY! A programmer
>> should always create a routine or better yet a package that uses an
>> algorithm to prints the value without the use of attributes.
>>
>> Mostly programs that are created by newbees use IMAGE attribute.
>
> I must be a newbie (NB spelling!) then.
>
> Where on earth do you get this viewpoint from? Please say why it is
> better to instantiate enumeration IO for Boolean rather than to use
> Boolean'Image?

At Barco avionics, our coding standard prohibits functions that return
unconstrained types because they use the secondary stack, making
inspection of object code more difficult.  That prohibition applies to
'Image, too.  But outside of safety-critical software, I see no reason
why 'Image should be prohibited.

-- 
Ludovic Brenta.