CRational & CRational::operator+=(const CRational & other)
{
m_numerator = GetNumerator() * other.GetDenominator() + GetDenominator() * other.GetNumerator();
m_denominator = GetDenominator() * other.GetDenominator();
Normalize();
return *this;
}
/* Check whether the number equals 0 */
int EqualsZero(VyNumber** num){
/* Use ANDS and ORS to check */
if((num[0]->type == INT && GetInt(num) == 0)
||(num[0]->type == REAL && GetDouble(num) == 0)
||(num[0]->type == COMPLEX && EqualsZero(GetReal(num)) && EqualsZero(GetImaginary(num)))
||(num[0]->type == RATIO && GetNumerator(num) == 0)){
return 1;
}
else {
return 0;
}
}
CRational const CRational::operator-() const
{
return CRational(-GetNumerator(), GetDenominator());
}
double CRational::ToDouble() const
{
return static_cast<double>(GetNumerator()) / static_cast<double>(GetDenominator());
}
