octave presentation, part 2

[David Bateman]

Jaroslav Hajek wrote:
> On Wed, Nov 19, 2008 at 1:30 PM, David Bateman
> <David.Bateman at motorola.com> wrote:
>   
>> Matlab introduced in
>> 2008a the OnCleanup function that has similar functionality to the
>> unwind_protect structure, though I think the Octave way of doing it is
>> cleaner.
>>     
>
> unwind_protect (though I'd prefer try/finally as in C++) is much
> cleaner, because it is, at least to me, completely
> unclear in what order the various variables are destroyed at the end
> of the function.
>   
Yes, this is also why I don't like the OnCleanup function. Though matlab 
leveraged there Object code and the Object destructors to get this 
function to work, so eventually if Michael's suggestted changes are made 
we could have the same function... I wrote a stopgap version of 
OnCleanup also that abuses the unwind_protect code to work (check the 
lists).
>   
>> What do you mean by "closures"?
>>     
>
> The ability of anonymous function handles to grab values from their scope, see
> http://en.wikipedia.org/wiki/Closure_(computer_science)
>   
Thanks.

>> The "GSVD" function is part of the linear-algebra package of octave-forge
>>
>>     
>
> I'll mention this. Are there plans to include it in Octave?
>   
I suppose it should be included in Octave as it is a matlab core 
function.. Its probably just a question of the work needed to import it..
>> You can write a C mex wrapper to a fortran function and so I'm not sure this
>> is a real limitation.
>>
>>     
>
> True, but still in Fortran you can bypass the wrapper, right?
>   
Yeah, I suppose its just a matter of work to write the fortran MEX API.

D.

-- 
David Bateman                                David.Bateman at motorola.com
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Parc Les Algorithmes, Commune de St Aubin    +33 6 72 01 06 33 (Mob) 
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