Here is the patch addressing Zachary's review (Thanks!). There are some Zachary's suggestions that I could not implement:
1. float_conjugate_impl, /* nb_float */
I think this should still be the real function (the parser), not the impl. The
impl function is really just an implementation detail.
It has to be that way. If I change it to float_conjugate, the compiler will complain. But on other places, we can use the real function.
2. v = list_sort_impl((PyListObject *)v, Py_None, 0);
Considering what I said about not using impl functions at the end of
floatobject.c, it would be nice to avoid it here, but I think that would be a
lot more trouble than it would be worth.
I can not use the real function here, otherwise the compiler will throw error.