[Caml-list] matlab interfacing

[Caml-list] matlab interfacing

[Charles-Albert Lehalle]

Hi,

Does anyone knows if there is a ocmal interface to call matlab scripts ?
(even if it's only when inputs and outputs are amtrices)

thanks,
charles

> -----Message d'origine-----
> De : Xavier Leroy [mailto:xavier.leroy@inria.fr]
> Envoye : mercredi 6 mars 2002 11:55
> A : Warp
> Cc : OCaml
> Objet : Re: [Caml-list] Tuple copy
> 
> 
> > I got the following question : I have a type MSG wich is 
> allocated using
> > alloc_tuple(3) , and contains one Int and two Int32.
> > Sometimes, the second Int32 is a C pointer, so I managed to 
> garbage it by
> > allocating sometimes MSG using alloc_tuple(4) and then 
> storing a custom
> > block in the fourth block (this custom block hold the C 
> pointer, and will
> > free() it when garbaged - the C pointer is also stored as 
> an Int32 in the
> > MSG to enable its access by C API ). So for the same type 
> MSG, i'm mixing
> > tuple of different sizes.
> > 
> > Does this can cause problems ?
> 
> It won't crash the program.  The GC "sees" the fourth field and
> handles it correctly, while the Caml code never "sees" it (it trusts
> the type declaration that says that the result is a triple).
> 
> However, primitives such as generic equality might return unexpected
> results (but again they won't crash).  For instance, a 3-tuple MSG
> will never be equal to a 4-tuple MSG, even though both agree on the
> first 3 fields (and thus print identically under the toplevel, for
> instance).
> 
> - Xavier Leroy
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Re: [Caml-list] matlab interfacing

[Maurice.Bremond]

>Does anyone knows if there is a ocmal interface to call matlab scripts ?

I have written an interface to Matlab API in order to write Ocaml
program (Ocaml 'MEX-files') for Matlab. 

Matlab standard Mex API provides a callback facility to Matlab
functions and scripts. 

There is some extensions with Camlp4 to simplify the registration to
Matlab of Caml functions and a Camlp4 quotation to write 'Matlab like'
expressions.

You can find it here : 

ftp://spike.cst.cnes.fr/pub/bremond/ocamlmex/ocamlmex.tar.gz

In the hope it can be useful

Maurice Brémond

LEGOS/GRGS
Observatoire Midi-Pyrénées
14 Ae Edouard Belin 
31400 Toulouse
France
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