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Programming > Ada > Re: Access keyw...
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Re: Access keyword

by Ludovic Brenta <ludovic@[EMAIL PROTECTED] > Apr 30, 2008 at 10:44 PM

Sébastien <seb.morand@[EMAIL PROTECTED]
> writes:
> Correct, I use -gnatVn but it looks like it's not the same (I don't
> inlined anything). With -gnatp, Results are even more suprising:
>
> Norme is as fast as C and 30% faster than NormeAccess.

I don't find this surprising at all.  With -gnatp, the compiler emits
essentially the same object code as for the "equivalent" C program.
Using access values involves dereferencing a pointer multiple times,
so is bound to be slower.

-- 
Ludovic Brenta.
 




 24 Posts in Topic:
Access keyword
=?ISO-8859-1?Q?S=E9bastie  2008-04-29 13:55:17 
Re: Access keyword
Peter Hermann <ica2ph@  2008-04-29 14:35:33 
Re: Access keyword
Ludovic Brenta <ludovi  2008-04-29 07:43:18 
Re: Access keyword
stefan-lucks@[EMAIL PROTE  2008-04-29 17:16:42 
Re: Access keyword
=?ISO-8859-1?Q?S=E9bastie  2008-04-29 16:31:09 
Re: Access keyword
Gautier <gautier@[EMAI  2008-04-29 21:55:56 
Re: Access keyword
=?ISO-8859-1?Q?S=E9bastie  2008-04-30 14:26:18 
Re: Access keyword
Gautier <gautier@[EMAI  2008-04-30 19:13:23 
Re: Access keyword
Adam Beneschan <adam@[  2008-04-29 10:37:05 
Re: Access keyword
"Jeffrey R. Carter&q  2008-04-29 19:08:33 
Re: Access keyword
Maciej Sobczak <see.my  2008-04-29 14:03:18 
Re: Access keyword
"Randy Brukardt"  2008-04-29 16:32:47 
Re: Access keyword
Gautier <gautier@[EMAI  2008-04-30 06:36:16 
Re: Access keyword
Maciej Sobczak <see.my  2008-04-30 00:15:47 
Re: Access keyword
"Dmitry A. Kazakov&q  2008-04-30 09:56:44 
Re: Access keyword
Georg Bauhaus <rm.tsoh  2008-04-30 11:21:06 
Re: Access keyword
=?ISO-8859-1?Q?S=E9bastie  2008-04-30 14:32:40 
Re: Access keyword
Adam Beneschan <adam@[  2008-04-30 08:16:42 
Re: Access keyword
Adam Beneschan <adam@[  2008-04-30 08:20:17 
Re: Access keyword
"Randy Brukardt"  2008-04-30 18:40:43 
Re: Access keyword
Maciej Sobczak <see.my  2008-04-30 14:32:13 
Re: Access keyword
Adam Beneschan <adam@[  2008-04-30 14:58:41 
Re: Access keyword
Adam Beneschan <adam@[  2008-04-30 18:10:22 
Re: Access keyword
Ludovic Brenta <ludovi  2008-04-30 22:44:43 

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tan12V112 Fri Jul 25 14:53:59 CDT 2008.