[Numpy-discussion] PyArray_Resize reference counting
Wed Oct 1 14:21:29 CDT 2008
On Tuesday 30 September 2008 18:54:21 Travis E. Oliphant wrote:
> I just went to the code and noticed that PyArray_Resize returns None.
> So, you certainly don't want to point array to it. The array does not
> get any reference count changes.
Thanks for the very clear explanation.
> PyObject *dummy;
> dummy = PyArray_Resize(array, ...)
> if (dummy == NULL) goto fail;
> is what you need to do.
If dummy is NULL, is the original array guaranteed to be unchanged (strong
exception safety with rollback semantics)? If not, is the original array
guaranteed to be at least in an internally consistent state (weak exception
In general, do functions modifying numpy arrays provide at least weak
exception safety guarantee? Or do they go one step further and provide
rollback semantics in case of exceptions?
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