[Numpy-discussion] ufunc for user-defined type

Now that I have my user-defined type, I want to add some funcs. According to the numpy book, I need to use: PyUFunc_RegisterLoopForType The book says I first need a ufunc. The only way I see to create one is PyUFunc_FromFuncAndData. Is the the correct procedure? I wonder, because PyUFunc_FromFuncAndData requires 'type', and 'type' is char, but user-defined types start at 256, which doesn't fit in a char, which gives a compile warning.