I would like to do
cdef int mom2calc[3]
mom2calc[0] = 1
mom2calc[1] = 2
mom2calc[2] = 3
in a more compact way. Something similar to
cdef int mom2calc[3] = [1, 2, 3]
which is an invalid Cython syntax.
Note:
cdef int* mom2calc = [1, 2, 3]
is not an option because I cannot (automatically) converted it to a memory view.
Answer
cdef int mom2calc[3]
mom2calc[:] = [1, 2, 3]
This works on raw pointers (although it isn't bounds checked then), memory views and fixed-sized arrays. It only works in one dimension, but that's often enough:
cdef int mom2calc[3][3]
mom2calc[0][:] = [1, 2, 3]
mom2calc[1][:] = [4, 5, 6]
mom2calc[2][:] = [7, 8, 9]