from_rational()

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

virtual

Implements Ring.

Definition at line 156 of file ZZp.cpp.

{
  ring_elem a = Z_mod::from_int(mpq_numref(q));
  ring_elem b = Z_mod::from_int(mpq_denref(q));
  if (b.get_int() == _ZERO) return false;
  result = Z_mod::divide(a, b);
  return true;
}

References _ZERO, divide(), from_int(), ring_elem::get_int(), and result().