pe, 2010-06-18 kello 16:43 +0200, Berthold Hoellmann kirjoitti: [clip] > The documentation (i refere to NumPy User Guide, Release 1.5.0.dev8106) > claims that numpy.int is platform int and that "NPY_INT" is a C based > name, thus referring to int also. So if I want to use "int" platform > independent in my extension module, what do I do to check whether the > correct data is provided. I want to avoid one of the casting routines, > such as "PyArray_FROM_OTF" or "PyArray_FromAny"? Do I have to use > "PyArray_ITEMSIZE"? But "PyArray_ITEMSIZE" indicates that "numpy.int" > are not platform integers. It returns "8" on Linux64, where > "sizeof(int)==4". > > So is this a bug in 1.4.1, in the 1.5 beta documentation or a > misunderstanding on my side?
I guess the documentation needs clarification, as numpy.int is not actually the platform-size integer, but the Python-size integer. The platform-size integer corresponding to C "int" is IIRC numpy.intc, which should result to the same sizes as NPY_INT. -- Pauli Virtanen _______________________________________________ NumPy-Discussion mailing list NumPy-Discussion@scipy.org http://mail.scipy.org/mailman/listinfo/numpy-discussion
