[Cython] a warning on using string/buffer objects for getting tmp memory

[Lisandro Dalcin]

I've just realized that using a string or buffer object for automatic
management of memory as I proposed has a pitfall: memory alignement is
not guaranteed.

So perhaps the only way to go is with this trick is to use a custom
python object internally calling malloc/free.


-- 
Lisandro Dalcín
---------------
Centro Internacional de Métodos Computacionales en Ingeniería (CIMEC)
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