[Numpy-discussion] "aligned" matrix / ctypes
Robert Kern
robert.kern at gmail.com
Wed Apr 23 17:45:05 EDT 2008
On Wed, Apr 23, 2008 at 4:26 PM, Zachary Pincus <zachary.pincus at yale.edu> wrote:
[ I wrote]
> > To solve the initial alignment, you overallocate a 1D array by 3 bytes
> > and find the offset from the allocated initial address which is
> > correctly aligned.
>
> Sorry -- I haven't had to ever concern myself with alignment before
> this, so I'm not sure how to go about this step. Do I just look at the
> raw pointer address and see what offset I need to give it to get it to
> be divisible by four?
Yes.
--
Robert Kern
"I have come to believe that the whole world is an enigma, a harmless
enigma that is made terrible by our own mad attempt to interpret it as
though it had an underlying truth."
-- Umberto Eco
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