Re: aligned_alloc man page and restrictions on alignment values

[Alejandro Colomar <alx@kernel.org>]

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Hi Jonathan,

On 2026-02-05T13:55:47+0000, Jonathan Wakely wrote:
> On Thu, 5 Feb 2026 at 13:26, Alejandro Colomar <alx@kernel.org> wrote:
> >
> > Hi Jonathan,
> >
> > On 2026-02-05T10:05:08+0000, Jonathan Wakely wrote:
> > > Hi,
> > >
> > > I don't understand what "except for the added restriction" means in
> > > aligned_alloc(3) here:
> > >
> > >       The  obsolete  function  memalign()  allocates  size bytes and returns a
> > >       pointer to the allocated memory.  The memory address will be a  multiple
> > >       of alignment, which must be a power of two.
> > >
> > >       aligned_alloc() is the same as memalign(), except for the added restric‐
> > >       tion that alignment must be a power of two.
> >
> > That was fixed (removed) in
> 
> Oh great, thanks! I was only looking at the Fedora man-pages, I should
> have checked git first.

No problems at all!

I believe asking can sometimes be more efficient than checking, and it
triggers discussion, which may sometimes uncover unresolved issues.
So thanks for asking!  :-)


Cheers,
Alex


-- 
<https://www.alejandro-colomar.es>

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