[Numpy-discussion] detecting shared data

Anne Archibald peridot.faceted@gmail....
Wed Apr 11 22:06:13 CDT 2007


On 11/04/07, Bill Baxter <wbaxter@gmail.com> wrote:

> Must be pretty recent.  I'm using 1.0.2.dev3520 (enthought egg) and
> the function's not there.

It is.

I've never been quite happy with it, though; I realize it's not very
feasible to write one that efficiently checks all possible overlaps,
but the current one claims (e.g.) a.real and a.imag may share memory,
which irks me. I put in a quick fix. Also, may_share_memory did not
have any tests (for shame!), so I put some of those in too. I wasn't
sure how to express "expected failure", and they're not the most
thorough, but they should help.

Anne M. Archibald
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