Let's suppose you have implemented a templated function with two template arguments fun<A,B> in the files cside.cpp and cside.hpp. Now, you want to use it in cython, so you declare it:
cdef extern from "cside.hpp" nogil:
void fun[A,B](A *arg1, B *arg2)and you can use it:
When it comes to usign the Numpy C API to create arrays,
there are plenty of resources to use the simpler functions,
such as the PyArray_SimpleNewXXX() series. To use the most
generic ones, you are supposed to be fairly well versed in
Numpy. Unfortunately, there are functions of intermediate
complexity, and resources for these are scarce.
Today, I had to create a Numpy array as a view (without
copying data) of some fields in a vector of structs.
Clearly, not a job for the PyArray_SimpleNewXXX() functions,
| #This program is free software: you can redistribute it and/or modify | |
| #it under the terms of the GNU General Public License v2 as published by | |
| #the Free Software Foundation. | |
| """Algorithmic pseudo-random permutations for large sequences. | |
| Module to generate random, arbitrarily large permutations. Random permutations | |
| can be generated in Python with random.shuffle or numpy.random.shuffle: | |
| import random |