Robert Kern skrev:
>
> This is your problem. The reason that you don't have to keep track of the
> pointer and free() it with declarations like these is that they *only* live
> inside the function. You cannot return them. You must PyMem_Malloc() an
> appropriately sized pointer, return the pointer, and PyMem_Free() it later.
>
>
Or one could just use a numpy ndarray. Something like this (not tested):
cdef np.ndarray clone_array_shape(np.ndarray arr) except -1:
cdef np.npy_intp ndim = arr.ndim, i
cdef np.ndarray[np.npy_intp] shape = np.zeros(ndim, dtype=int)
for i in range(ndim): shape[i] = arr.shape[i]
return shape
Which avoids possible memory leaks by not calling free, and avoids the
need to error check in the return value from malloc.
S.M.
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