Hi. In integer.pyx I see a lot of code such as:
cdef Integer z
z = PY_NEW(Integer)
# [...] mpz_somethingorother(z.value, somethingorother)
Is it necessary to explicitly use PY_NEW like this?
I'd like to write code that "casts" a number to an Integer object. For
example, in writing a function Integer.number_of_digits() I'd like to
write
cdef Integer size
size = (Integer)(mpz_sizeinbase(self.value, base))
(One reason that I want to do it this way, other than simplicity, is
that I don't necessarily know what type a size_t is.)
Similarly, if x in an int and y and z are Integers, is it OK to write
z = Integer(x)**y
Anyway, this point isn't really why I want to write it this way. The
question is really, is there any reason I shouldn't write it this way?
Memory leaks? Efficiency?
Maybe the real question is: In Cython code, when do I need to take care
of memory management myself, and when can I count on the garbage
collector?
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