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Re: C++ dynamically linked functions
From: |
Paul Kienzle |
Subject: |
Re: C++ dynamically linked functions |
Date: |
Wed, 10 Apr 2002 14:21:53 -0400 |
Try
extern "C" {
int myfunc();
}
On Wed, Apr 10, 2002 at 02:05:26PM -0400, Kiran Kumar Sagi wrote:
>
> Hi,
>
> I am trying to call a C function from the oregonator.cc
> to get started with using C libraries in octave.
>
> first i tried,
> mkoctfile oregonator.cc myfunc.c
> copied the oregonator.oct file into octave bin directory.
> on using it, it breaks saying myfunc: reference symbol not found.
>
> next i tried creating static library from myfunc.o and tried
> mkoctfile oregonator.cc -lmyf
> it still doesnt solve the probelm.
>
> could you please let me know what i am missing here?
>
> The below is the sample oregonator.cc file.
>
> Thanks,
> kiran
>
> #include <oct.h>
>
> int myfunc();
>
> DEFUN_DLD (oregonator, args, ,
> "The `oregonator'.\n\
> \n\
> Reference:\n\
> \n\
> Oscillations in chemical systems. IV. Limit cycle behavior in a\n\
> model of a real chemical reaction. Richard J. Field and Richard\n\
> M. Noyes, The Journal of Chemical Physics, Volume 60 Number 5,\n\
> March 1974.")
> {
> int i;
> ColumnVector dx (3);
>
> ColumnVector x = args(0).vector_value ();
>
> dx(0) = 77.27 * (x(1) - x(0)*x(1) + x(0) - 8.375e-06*pow (x(0), 2));
> dx(1) = (x(2) - x(0)*x(1) - x(1)) / 77.27;
> dx(2) = 0.161*(x(0) - x(2));
> i = myfunc();
> printf("i %d\n",i);
> return octave_value (dx);
> }
>
>
>
>
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>
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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
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