from_rational()

bool FractionField::from_rational ( mpq_srcptr n, ring_elem & result ) const

virtual

Implements Ring.

Definition at line 268 of file frac.cpp.

{
  frac_elem *f = new_frac_elem();
  f->numer = R_->from_int(mpq_numref(n));
  f->denom = R_->from_int(mpq_denref(n));
  bool ok = not R_->is_zero(f->denom);
  if (ok) result = FRAC_RINGELEM(f);
  return ok;
}

References frac_elem::denom, FRAC_RINGELEM, new_frac_elem(), frac_elem::numer, R_, and result().