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

by Ludovic Brenta <ludovic@[EMAIL PROTECTED] > Apr 29, 2008 at 07:43 AM

S=E9bastien wrote:
> I'd like to know if there is performance issue using the access keyword?
[snipped]
> Is NormeAccess faster because I'm using access keyword?

Have you measured a speed difference, or compared the assembly code
emitted by the compiler?

> I read that Ada
> compiler choose if a reference or a value mode is used in the Norme
> function, so it would mean that the access keyword should be used only
> for runtime allocated variable.

This is correct so, in your example, NormeAccess is unnecessary.
However there are legitimate uses of acces types beyond dymanic memory
allocation. For example a stack-allocated record may contain an access
to another stack-allocated record or array. Another use for access
types is access discriminants, but this is an advanced topic.

--
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 Thu Jul 24 0:13:37 CDT 2008.