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Make vector a struct, allocate it directly on the stack, and thus pass it by copy, which is much less expensive than a python allocation.
author Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
date Wed, 18 Dec 2013 18:15:40 +0100
parents cb5c68598ab0
children
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cdef struct Vector:
    float x, y, z

cdef Vector sub(Vector vec1, Vector vec2)
cdef Vector cross(Vector vec1, Vector vec2)
cdef float dot(Vector vec1, Vector vec2) nogil
cdef Vector normalize(Vector vec)