void mpz_fdiv_r_2exp (mpz_ptr w, mpz_srcptr u, unsigned long cnt) { cfdiv_r_2exp (w, u, cnt, -1); }
void mpz_fdiv_r_2exp (mpz_ptr w, mpz_srcptr u, mp_bitcnt_t cnt) { cfdiv_r_2exp (w, u, cnt, -1); }