Stefan Krah <ste...@bytereef.org> added the comment:
> The ways we've discussed using aligned allocation in numpy wouldn't follow
> this requirement without special checking. Which isn't necessarily a big
> deal, and numpy won't necessarily use this API anyway. But I would suggest
> being very clear about exactly what you guarantee and what you don't :-).
In the GitHub issue we sort of decided to make the more relaxed Posix
semantics official:
'alignment' must be a power of 2 and a multiple of 'sizeof(void *)'.
'size' can be really anything, so it should work for numpy.
It's a pity that Posix does not round up align={1,2,4} to 'sizeof(void *)'
automatically (why not?), so the applications will have to do that.
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<https://bugs.python.org/issue18835>
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