RE: compile C++ mex code with Octave libraries

[Trigui, Hafedh (OTT)]

Thank you very much Arnaud for your prompt and great support.
The octave function is now working as expected.
Best Regards
Hafedh 

-----Original Message-----
From: Arnaud BARRE [mailto:address@hidden 
Sent: Thursday, November 24, 2011 10:10 AM
To: Trigui, Hafedh (OTT)
Cc: address@hidden
Subject: Re: compile C++ mex code with Octave libraries

Hi Hafedh,

I think the problem is not related to the MEX function but due to the fact that 
you create a M-File which has the name of the function that you intent to use. 
Octave uses it and as there is nothing inside, it gives you the warning that 
some return values are undefined. This problem also occurs with the latest 
version of Maltab, since the extension DLL is no more accepted.

Can you delete the file MedianFilter.m, rename $MedianFilter.dll into 
MedianFilter.mex, relaunch Octave and try again your function test.

Arnaud

On Thu, Nov 24, 2011 at 3:40 PM, Trigui, Hafedh (OTT) <address@hidden> wrote:
> Hi Arnaud,
> I am strictly following the attached tutorial which worked for Matlab.
> Octave did not like line 24 of test.m.
> My intent is to use an existing C++ project which was developped for many 
> years and Octave as a wrapper.
> Thanks for your help
> Hafedh
>
>
> -----Original Message-----
> From: Arnaud BARRE [mailto:address@hidden
> Sent: Thursday, November 24, 2011 5:20 AM
> To: Trigui, Hafedh (OTT)
> Cc: address@hidden
> Subject: Re: compile C++ mex code with Octave libraries
>
> Could you post the error(s) given by Octave?
>
> Moreover, another difference with Matlab for the MEX function is the 
> extension. Under Octave, all the MEX functions must have the extension MEX. 
> In your case, it should be MedianFilter.mex. Maybe the problem is here.
>
> On Wed, Nov 23, 2011 at 9:18 PM, Arnaud BARRE <address@hidden> wrote:
>> Please, keep the octave group in CC.
>>
>> Could you explain us the current result of your function and what 
>> should be expected?
>>
>> Arnaud
>>
>> On Wed, Nov 23, 2011 at 7:49 PM, Trigui, Hafedh (OTT) 
>> <address@hidden> wrote:
>>> Hi Arnaud,
>>>
>>> Thank you very much for the prompt reply.
>>> I was able to build the project successfully.
>>> However, for unknown reasons to me, the function did not run properly when 
>>> used in octave (test.m).
>>>
>>> I'll greatly appreciate your help.
>>>
>>> Thank you very much in advance and best regards, Hafedh
>>>
>>> -----Original Message-----
>>> From: Arnaud BARRE [mailto:address@hidden
>>> Sent: Wednesday, November 23, 2011 1:59 AM
>>> To: Trigui, Hafedh (OTT)
>>> Cc: address@hidden
>>> Subject: Re: compile C++ mex code with Octave libraries
>>>
>>> Dear Hafedh,
>>>
>>> The name of the libraries ued by Octabe to link MEX functions are 
>>> not the same than Matlab. Here is the 3 libraries required (at least 
>>> in my
>>> project):
>>>  - liboctinterp
>>>  - liboctave
>>>  - libcruft
>>>
>>> Linking your project with these libraries should resolve your 
>>> problem,
>>>
>>> Regards,
>>>
>>> Arnaud
>>>
>>> On Tue, Nov 22, 2011 at 11:27 PM, Trigui, Hafedh (OTT) <address@hidden> 
>>> wrote:
>>>> Dear Sir or Madam,
>>>>
>>>> I strictly followed the attached example of generating mex files 
>>>> using Microsoft visual studio 2005 and Octave 3.2.4 (rather than Matlab).
>>>> The code compiled perfectly.
>>>> However, it could not link due to the absence of the library files 
>>>> libmx.lib, libmat.lib and libmex.lib (apparently Matlab files). My 
>>>> search in the Octave directory failed to find such files.
>>>> I'll greatly appreciate if you could send me the equivalent in 
>>>> Octave to build my project.
>>>>
>>>> I am forced to use C++ since a large project existed and I do not 
>>>> like to rewrite it with Octave. I wanted just to use it as mex 
>>>> files to Octave and later on I will only make changes to specific 
>>>> (algorithmic) section.
>>>>
>>>> Thank you very much for your help.
>>>>
>>>> Best Regards
>>>> Hafedh
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to the intended recipient and may also be privileged.
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your system.
If you are not the intended recipient you must not copy it or use it for any 
purpose nor disclose or distribute its contents to any other person.
All communications may be subject to interception or monitoring for operational 
and/or security purposes.
Please rely on your own virus checking as the sender cannot accept any 
liability for any damage arising from any bug or virus infection.


Ce courriel de Ultra Electronics est destine a la personne a laquelle il est 
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Si vous avez recu ce courriel par erreur, veuillez aviser l'expediteur et 
l'effacer de votre systeme. 
Si vous n'etes pas le destinataire, vous ne devez ni copier, ni l'utiliser pour 
quel qu'usage que ce soit, ni le faire suivre a d'autres.
Toutes les communications sont assujetties a une surveillance et/ou 
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Vous etes tenu de vous fier a votre anti-virus car l'expediteur n'acceptera 
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