[Numpy-discussion] ufunc for user-defined type
Travis E. Oliphant
Fri Feb 22 10:01:08 CST 2008
Neal Becker wrote:
> Now that I have my user-defined type, I want to add some funcs.
> According to the numpy book, I need to use:
> The book says I first need a ufunc. The only way I see to create one is
> Is the the correct procedure?
You'll have to do some digging because the API allowing low-level loops
for user-defined types is not well tested or vetted. Also, don't be
surprised if you uncover some bugs.
The concept is that you create the UFunc with the "built-in" types using
PyUFunc_FromFuncAndData and then you add loops for the user-defined type
So, you have the basic procedure down.
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