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Re: how to use fft in c++

From: Kire Pudsje
Subject: Re: how to use fft in c++
Date: Fri, 9 Jun 2017 20:28:53 +0200

On Fri, Jun 9, 2017 at 7:54 PM, Progressive <address@hidden> wrote:
Ok, thanks again! That's nice!

But I still don't get it..   I reduced the code to figure out the problem:

#include <stdio.h>
#include <stdlib.h>
#include <string>
#include <math.h>

#include <oct.h>
#include <builtin-defun-decls.h>
// #include <toplev.h>

using namespace std;

int main()

        DEFUN_DLD(testfft, args, nargout, "\testfft\n\")
                octave_value_list retval;
                int nargin = args.length ();

                retval = Ffft (args);
                return retval;

        return 1;
Get rid of the main. DEFUN is defining a function.
BTW, I might be missing something, but I now have the feeling you are going the opposite way. Oct files are intended to be for calling a cpp file from octave. I thought you were trying the opposite?

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