from_rational()

bool RingZZ::from_rational ( mpq_srcptr q, ring_elem & result ) const

virtual

Implements Ring.

Definition at line 128 of file ZZ.cpp.

{
  bool ok = mpz_cmp_si(mpq_denref(q), 1) == 0;
  if (not ok) return false;
  result = RingZZ::from_int(mpq_numref(q));
  return true;
}

References from_int(), and result().