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Re: Interesting Rant [message #51439 is a reply to message #51356]

Fri, 17 November 2006 11:44

JD Smith
Messages: 850
Registered: December 1999

Senior Member

On Thu, 16 Nov 2006 09:35:42 -0800, greg michael wrote:

>
>> [quoted text muted]
>
> I'm sure this is still backwards - this is how I see it:
> - vector operations are needed for their power of expression
> - IDL exists for this reason, and incidentally, makes them fast
> - loops turn out to be slow because IDL is interpreted
> - this is of secondary importance, because they're rarely necessary in

I'd love to see an overhead budget for a single trip around the IDL
interpreter loop. There are algorithms which no amount of cleverness can
recast into vector operations. For these, you can either code as a DLM,
or eat the horrible loop overhead. I've long argued for a "side loop"
capability of the language that would greatly reduce the
per-iteration overhead, at the cost of skipping processing of keyboard
input, widget events, etc., etc. Another (likely better) option would be
a more coherent interface to C code, i.e. make DLM writing more akin to
assembly writing, having it auto-compile, etc.

JD

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[Message index]

		Interesting Rant By: David Fanning on Tue, 14 November 2006 09:40
		Re: Interesting Rant By: Nigel Wade on Fri, 17 November 2006 05:00
		Re: Interesting Rant By: Steve Eddins on Thu, 16 November 2006 17:00
		Re: Interesting Rant By: greg michael on Thu, 16 November 2006 09:35
		Re: Interesting Rant By: JD Smith on Fri, 17 November 2006 11:44
		Re: Interesting Rant By: Nigel Wade on Thu, 16 November 2006 01:51
		Re: Interesting Rant By: James Kuyper on Wed, 15 November 2006 15:55
		Re: Interesting Rant By: Mike[2] on Wed, 15 November 2006 13:21
		Re: Interesting Rant By: news.qwest.net on Wed, 15 November 2006 11:36
		Re: Interesting Rant By: Foldy Lajos on Wed, 15 November 2006 12:38
		Re: Interesting Rant By: gknoke on Wed, 15 November 2006 12:13
		Re: Interesting Rant By: Richard Edgar on Wed, 15 November 2006 10:31

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