Access to abs() from C interface

[deyanmihaylov]

I am using the C interface of gmpy2 in cython and it has been working great. However, I have not found out how to access the absolute value function abs() in this context.

All of the following fail with import (or no module found) errors:
from gmpy2 import abs as gmpabs
from gmpy2_context import abs as gmpabs
from gmpy2_abs import abs as gmpabs

Is there a way to access the abs() function from cython, or do I need to make my own alternative?

[skirpichev]

What's wrong with using abs?

from gmpy2 cimport *

cdef extern from "gmp.h":
    void mpz_set_si(mpz_t, long)

import_gmpy2()   # needed to initialize the C-API

cdef mpz z = GMPy_MPZ_New(NULL)
mpz_set_si(MPZ(z), -7)

print(abs(z))

If you are working with C API directly, you can just use mpz_abs on z field of MPZ_Object struct.

[skirpichev]

@deyanmihaylov, is this still an issue for you?