tg at gmplib.org
Tue Aug 31 13:02:10 CEST 2010
Paul Zimmermann <Paul.Zimmermann at loria.fr> writes:
> > I don't know how Torbjörn gets 10N, but I agree with your calculation:
> > * we need two buffers of N for the inputs : total 2N
> > * we need a buffer of 2N for the output : total 2N
> > * we need two buffers of 4N each for the Fourier transforms : total 8N
> > (we reuse one buffer for the inverse transform)
> I suppose you could use the output buffer to store part of the
> fourier transform of one of the inputs, to save 2N?
right. However this would make the code more complex.
I think the code could be made to use the itch style for allocation,
which would make this simpler.
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