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embedded octave: how to define new functions?

From: John W. Eaton
Subject: embedded octave: how to define new functions?
Date: Tue, 5 Sep 2006 16:15:36 -0400

On  3-Sep-2006, Andrea Latina wrote:

| Hi all,
| I would like to embed octave into my code. I've used the canonical
| octave_embed.tgz example as a starting point. It compiles and works
| fine, but I've encountered a problem as soon as I've tried to define,
| with DEFUN(), my first new function.
| To begin, I've copied the classic oregonator example into my code and
| changed DEFUN_DLD for DEFUN (because my function should be considered
| "built in", not loadable) but the programs doesn't see it, and just
| tells me:
| error: 'oregonator' undefined bla bla bla
| Where am I wrong? What should I do ta make my new functions visible to octave?

You have to register them with the interpreter.  When Octave is built,
there is a script that scans the sources for DEFUN macros and builds
the file builtins.cc.  Look at that script and the generated file to
see what it is doing, and do that.


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