12.10.2014, 20:19, Mads Ipsen kirjoitti: > Is there any way for me to detect (on the Python side) that transpose() > has been invoked on the matrix, and thereby only do the copy operation > when it really is needed?
The correct way to do this is to, either: In your C code check PyArray_IS_C_CONTIGUOUS(obj) and raise an error if it is not. In addition, on the Python side, check for `a.flags.c_contiguous` and make a copy if it is not. OR In your C code, get an handle to the array using PyArray_FromANY (or PyArray_FromOTF) with NPY_ARRAY_C_CONTIGUOUS requirement set so that it makes a copy when necessary. _______________________________________________ NumPy-Discussion mailing list NumPy-Discussion@scipy.org http://mail.scipy.org/mailman/listinfo/numpy-discussion