[issue18835] Add PyMem_AlignedAlloc()

[Stefan Krah]

Stefan Krah <stefan at bytereef.org> added the comment:

Yes, it may be better not to add it.

To summarize the problems again:
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  - C11 aligned_alloc() / free() would be more comfortable but isn't
    available on MSVC.

  - posix_memalign() performance isn't that great.

  - hand-rolled aligned_calloc() is the fastest.


The feature could still be useful for fixing #31912 and #27987,
*if* someone has an idea how to integrate the aligned version.

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