Re: [boost] Request to contribute boost::FFT

Subject: Re: [boost] Request to contribute boost::FFT
From: Mathias Gaunard (mathias.gaunard_at_[hidden])
Date: 2013-06-03 08:44:03

On 03/06/13 14:15, Arash Partow wrote:
> On 3/06/2013 7:39 AM, Mathias Gaunard wrote:
>  >
>  > It's a pure computation function; the interface
>  > should just be a couple of functions taking pointers.
>  >
>
> That would be a very naive and pedestrian approach.
>
> Factors ranging from the input type (real, complex, integer),
> dimensionality of the data, the way the data is stored, the
> precision required, application of the transform (lets think about
> multiplications for Strassen), phase rotation et al.

Different function names for different variants. You may also use 
overloading.

> So what we should be heading for is not another CRC library (which
> should really be part of a generalized message digest library), but
> rather a well thought-out and designed interface that is extensible
> with provisions for future support of multiple backends (fftw, ipp,
> cuda, opencl et al) and types (float, double, mp, et al) - and not
> just the first meta idea that easily scales in our minds. ;)
>
> In short - A couple functions with a few pointers would fall
> dismally short of the 'mark'.

Yet it is what is needed to fulfill your requirements.