invalid stgdict->length == 2 in pointer to pointer
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#27 invalid stgdict->length == 2 in pointer to pointer
In the attached example, the line 'pp[0] = q' does
not always properly copy the pointer value of 'q' into
'pp[0]'. The error does not show up consistently,
but I found out why by tracking the problem down to
Pointer_ass_item(): on my machine at least (Pentium),
the stgdict of 'pp' has a size == 4 but length == 2.
As a result, the size computed as the quotient is 2,
and then in _CData_set() the memcpy() only copies 2
bytes from the b_ptr of q into the b_ptr of p.
Bug example (does not fail consistenty)
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Armin, I confirm that this is a bug. A severe one, I would
even say ;-). I'll attach a test case (ctypesbug2.py) which
makes it easier to reproduce it (on WinXP SP 2, at least).
Thanks for findiing it, will start to work on it ASAP.
Bug example which fails each time on WinXP SP 2, python 2.4.3.
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Fixed in CVS, and added a test for it.
Thanks.