// Set sets z to x (by making a copy of x) and returns z.
func (z *Rat) Set(x *Rat) *Rat {
if z != x {
z.doinit()
C.mpq_set(&z.i[0], &x.i[0])
}
return z
}
// Set sets z = x and returns z.
func (q *Rat) Set(x *Rat) *Rat {
q.doinit()
C.mpq_set(&q.i[0], &x.i[0])
return q
}