Re: varargout form a DLD function

[Paul Kienzle]

No, you should be returning a cell array.

Lists are deprecated.  I don't have the
syntax memorized, but it should be
something like:

        Cell x(5,1);

        x(1) = 1;
        ...

        retval(0) = x;
        return retval;

Paul Kienzle
address@hidden

On Feb 1, 2004, at 8:51 AM, Shai Ayal wrote:

> Essentially you suggest returning a list for the function. This is a 
> nice trick which solves my problem completely
>
> Thanks for the help
>
>         Shai
>
> Geraint Paul Bevan wrote:
> > -----BEGIN PGP SIGNED MESSAGE-----
> > Hash: SHA1
> > Shai Ayal wrote on 01/29/04 22:10:
> > | Hi all,
> > |
> > | I am trying to return a variable number of arguments from a DLD 
> > function
> > |
> > |
> > | however, I cannot recover these arguments at the command line:
> > |
> > | Note that if I know the number of arguments I can get them as in 
> > line 4.
> > | but what if I don't know beforehand ? Is there something similar to
> > | varargin{:} for output arguments ?
> > |
> > |     Shai
> > |
> > You can return a variable number of arguments by returning an
> > octave_value_list as the first element of retval:
> > ~/test:
> > $ cat varargouttest.cc
> > #include <octave/oct.h>
> > DEFUN_DLD (varargouttest, args, nargout, "")
> > {
> >     octave_value_list retval, retval2;
> >     for (int i = 4; i >= 0; i--) {
> >         retval2(i) = octave_value (1 + i);
> >     }
> >     retval(0) = retval2;
> >     nargout = 5;
> >     return retval;
> > }
> > ~/test:
> > $ mkoctfile varargouttest.cc
> > ~/test:
> > $ octave -q
> > octave:1> varargouttest
> > ans =
> > (
> > ~  [1] = 1
> > ~  [2] = 2
> > ~  [3] = 3
> > ~  [4] = 4
> > ~  [5] = 5
> > )
> > octave:2>
> > -----BEGIN PGP SIGNATURE-----
> > Version: GnuPG v1.2.2 (GNU/Linux)
> > iEYEARECAAYFAkAZNV8ACgkQcXV3N50QmNMEpQCeJaBEFPh/HYp4A3z7oOUOPAsi
> > RYgAn2qQ2c6/CJNeAgBbXDa/Ai/WqCjP
> > =5JaE
> > -----END PGP SIGNATURE-----
> > -------------------------------------------------------------
> > Octave is freely available under the terms of the GNU GPL.
> > Octave's home on the web:  http://www.octave.org
> > How to fund new projects:  http://www.octave.org/funding.html
> > Subscription information:  http://www.octave.org/archive.html
> > -------------------------------------------------------------
> <shaia.vcf>



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