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From: Martin Dowie <martin.dowie@btopenworld.com>
Subject: Re: Why can't you create a out of order subtype?
Date: Fri, 4 Feb 2005 06:49:05 +0000 (UTC)
Date: 2005-02-04T06:49:05+00:00	[thread overview]
Message-ID: <ctv5t1$iqp$1@sparta.btinternet.com> (raw)
In-Reply-To: <mailman.121.1107462019.527.comp.lang.ada@ada-france.org>

Marius Amado Alves wrote:
>>> That's very, very, very slow...
>>
>>
>> True (if it works at all).
> 
> 
> Before I though you were complaining about the slowness of the Image 
> (Value) operations (because there is probably parsing involved and 
> string values on and off the stack) compared with unchecked conversion 
> and 'Valid (which is very probably faster). Now I realise that you were 
> probably complaining about the slowness of the exception handling 
> mechanism. In that case, my experience with GNAT is that it is not that 
> slow at all. I've made controlled experiments in the past. I think I 
> reported them here.

No, I was complaining about the 'Value/'Image calls. I didn't think it 
was worth re-hashing the ol' "exceptions are slow" argument! :-)

Cheers

-- Martin



  parent reply	other threads:[~2005-02-04  6:49 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-02-01 23:51 Why can't you create a out of order subtype? brett_gengler
2005-02-02  0:24 ` Jeffrey Carter
2005-02-02 17:55   ` Marius Amado Alves
2005-02-02 18:50     ` Pascal Obry
2005-02-02 20:22       ` Marius Amado Alves
2005-02-03  4:36       ` Wes Groleau
2005-02-03 12:59         ` Marius Amado Alves
2005-02-04  3:42           ` Wes Groleau
2005-02-02 19:35     ` Martin Dowie
2005-02-02 20:35       ` Marius Amado Alves
2005-02-02 21:18         ` Martin Dowie
2005-02-03 19:40       ` Robert A Duff
2005-02-03 20:22         ` Marius Amado Alves
2005-02-03 22:05           ` Robert A Duff
2005-02-04  6:49           ` Martin Dowie [this message]
2005-02-02 22:26 ` Georg Bauhaus
2005-02-03 23:09 ` Robert A Duff
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