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Re: handling complex arrays in octfiles


From: Andy Adler
Subject: Re: handling complex arrays in octfiles
Date: Mon, 19 Apr 2004 19:50:04 -0400 (EDT)

On Mon, 19 Apr 2004, Luke Sjulson wrote:

> I'm trying to write an oct-file to access a precompiled FFT function in
> octave 2.1.57 on linux.  The function takes arguments of type
> doublecomplex, which is simply defined as:
>
> typedef struct
> {
>    double real, imag;
> }  doublecomplex;
>
> This is simple enough, but I can't figure out exactly how octave is
> storing complex numbers, or how to convert back and forth.  Does anyone
> know how to do this?  I apologize for this being a somewhat silly
> question, but my C++ skills are very poor.

For an example of a C interface to the octave C++ classes,
you may wish to look at the complex_sparse_ops.cc code
in octave-forge.

http://cvs.sourceforge.net/viewcvs.py/octave/octave-forge/main/sparse/complex_sparse_ops.cc

Andy




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