On Fri, 25 Nov 2005, Dmitry Bely wrote:

> Thomas Fischbacher <Thomas.Fischbacher@Physik.Uni-Muenchen.DE> writes:
> 
> > As far as I can see from the documentation, it is not explicitly permitted 
> > to change a once allocated bigarray data structure in such a way that one 
> > replaces the data pointer by some other data pointer (while retaining 
> > size and type). This would, however, be quite useful in some situations.
> 
> Is your bigarray a wrapper around some externally allocated data, created
> via alloc_bigarray() C call?

It's a somewhat special case of just that situation, yes.

I supposed I may just do so, however, the specification (documentation) 
does not give me any guarantee that this is valid, so, at least the 
documentation has to be changed before I can rely on this.

There is a subtle difference between "just accidentally works" 
and "works because it is guaranteed by specification".

-- 
regards,               tf@cip.physik.uni-muenchen.de              (o_
 Thomas Fischbacher -  http://www.cip.physik.uni-muenchen.de/~tf  //\
(lambda (n) ((lambda (p q r) (p p q r)) (lambda (g x y)           V_/_
(if (= x 0) y (g g (- x 1) (* x y)))) n 1))                  (Debian GNU)