Multiplication with overloaded operator

Yes, its possible. You need a non-member operator* function that takes a double and a CComplex and returns a CComplex:

// needed for r * c
CComplex operator*( const double op1, const CComplex& op2 )
{
// assuming there is a specialized CComplex constructor taking the real/imag parts
return CComplex( op1 * op2.real, op1 * op2.imag );
}

// needed for c * r
CComplex operator*( const CComplex& op1, const double op2 )
{
// assuming there is a specialized CComplex constructor taking the real/imag parts
return CComplex( op2 * op1.real, op2 * op1.imag );
}


I chose to use the double type because int/float are implicitely convertible to double, so you dont have to provide these operatores for integers or floats.