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From: gaukrogi@aston.ac.uk (Rofi)
Subject: Re: Stream IO - Correct usage of Set_Index
Date: 1999/03/04
Message-ID: <7bmj4n$mmv$1@whatsit.aston.ac.uk>#1/1
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References: <7bemc8$snn$1@whatsit.aston.ac.uk>
 <7bgej7$erj$1@nnrp1.dejanews.com>
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Organization: Aston University
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Newsgroups: comp.lang.ada
Date: 1999-03-04T00:00:00+00:00
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In article <7bgej7$erj$1@nnrp1.dejanews.com>,
	bourguet@my-dejanews.com writes:
> In article <7bemc8$snn$1@whatsit.aston.ac.uk>,
>   gaukrogi@aston.ac.uk (Rofi) wrote:
>>
>> Already Looked in :
>> 	Ada Reference Manual;
> 
> The answer is there :-)

With the correct directing in hindsight of course it is (d'oh). 

> 
>> 	I have tried using the attribute Size which appears to return the
>> size of the datastructure in bits.  On this compiler I can divide this by 8
>> and I get the correct values but this method seem to me to be very Adalike.
>> Am I missing something monumentally obvious or ...... ?
> 
> A stream is a stream of Stream_Element, so the size you want to divide by
> is Stream_Element'Size.
>

Yep, works like a dream.
 
> But I'd usually design my program to have only to move to result of the
> "give me the current position" function (I've not my RM here, so I can't
> check).

Yes, after considering the other reply to my question I think that would
be best. 

> 
> -- Jean-Marc
>

Thanks alot, you saved a lot of hair pulling etc :-).  ( Sorry for my late
reply but I wanted to try out your answer (and then of course got side-
tracked by something else !) )

Cheers

Rofi