From octave-maintainers-request at bevo dot che dot wisc dot edu Mon Mar 25 13:12:59 2002
Subject: Re: calling .m function from oct
From: Paul Kienzle <pkienzle at jazz dot ncnr dot nist dot gov>
To: andyj at splash dot princeton dot edu, octave-maintainers@bevo.che.wisc.edu
Date: Mon, 25 Mar 2002 14:12:54 -0500

Wrong list.  Use help-octave for such questions.

#include <octave/parse.h>
...

// find the minimum of the columns of matrix m.
octave_value_list fargs,fret;
fargs(0) = m;
fret = feval("min", fargs, 2);
ColumnVector min(fret(0).vector_value());
ColumnVector minidx(fret(0).vector_value());

...

Paul Kienzle
pkienzle at users dot sf dot net


On Mon, Mar 25, 2002 at 11:39:31AM -0500, Andy Jacobson wrote:
> Howdy Folks,
> 
>         I've got some C++ code for optimization that used to compile
>         into an oct file under Octave 2.0.16, but won't compile under
>         Octave 2.1.x.  The issue is that I want to call a
>         user-specified M-file from within the C++ function.
> 
>         I used to declare a "tree_fvc" object which was initialized
>         via a call to is_valid_function(), and then evaluated with a
>         call to tree_fvc::eval().  
> 
>         So, could someone please tell me what the new and correct way
>         to do this might be?  I notice that the octave_function class
>         doesn't appear to have an eval() method.
> 
>         Thanks in advance and standard apologies if this is the wrong
>         list for such a question,
> 
>                 Andy
> -- 
> Andy Jacobson
> 
> arj at gfdl dot gov
> 
> Program in Atmospheric and Oceanic Sciences
> Sayre Hall, Forrestal Campus
> Princeton University
> PO Box CN710 Princeton, NJ 08544-0710 USA
> 
> Tel: 609/258-5260  Fax: 609/258-2850
>