Создать класс Complex

#include <iostream> 
 #include <string.h>
#include <stdio.h>
#include <conio.h>
using namespace std;
class complex 
{ 
private: 
    double re, im; 
public:  
    complex() { re = 0; im = 0; }
    complex(double r, double i) { re = r; im = i; }  
    complex(const complex &ob){ re = ob.re; im = ob.im; };      
    complex& operator = (complex); 
    complex operator + (complex);
    complex operator - (complex);
    complex operator * (complex&);
    complex operator / (complex&);
    complex& operator += (complex); 
    complex& operator -= (complex); 
    complex& operator *= (complex); 
    complex& operator /=( complex);  
    friend std::istream& operator >>(std::istream&, complex&); 
    friend std::ostream& operator << (std::ostream&, const complex&); 
    bool operator == (complex& com);  
    bool operator != (complex& com); 
    bool operator > (complex& com); 
    bool operator < (complex& com);
    
};   
 
bool complex:: operator > (complex& com) 
{  
    if(this->re > com.re) 
        return 1; 
    else if(this->re == com.re && this->im > com.im) 
        return 1; 
    else 
        return 0;
}
 
bool complex ::operator < (complex& com) 
{ 
    if(this->re < com.re) 
        return 1; 
    else if(this->re == com.re && this->im < com.im) 
        return 1; 
    else 
        return 0;
 
}
 
bool complex::operator != (complex& com) 
{  
    if(this->re != com.re || this->im != com.im) 
       return 1; 
    else  
        return 0;
}
 
bool complex::operator==(complex& com) 
{  
    if(this->re == com.re && this->im == com.im) 
        return 1; 
    else 
        return 0;
}
 
 
 
complex complex::operator*(complex &com) 
{  
    double i, j;  
    i = re * com.re - im * com.im; 
    j = re * com.im + com.re * im; 
    re = i; 
    im = j; 
    return *this; 
} 
 
complex complex::operator/(complex &com) 
{  
    double i, j, k; 
    k = re * re +com.im * com.im; 
    i = (re * com.re + im * com.im) / k; 
    j = (com.re * im - re * com.im) / k; 
    re = i; 
    im = j; 
    return *this;
}
 
complex& complex::operator =(complex com) 
{  
    this->re = com.re; 
    this->im = com.im; 
    return *this;
}  
 
complex complex::operator+(complex com) 
{ 
    this->re = this->re + com.re; 
    this->im = this->im + com.im; 
    return *this;
} 
 
complex complex::operator-(complex com) 
{ 
    this->re = this->re - com.re; 
    this->im = this->im - com.im; 
    return *this;
}
 
 
std::ostream& operator << (std::ostream& out, const complex& com) 
{  
    if(com.im < 0) 
        out << com.re << "+i(" << com.im << ")\n"; 
    else 
        out << com.re << "+i" << com.im << "\n"; 
    return out;
} 
 
std::istream& operator >> (std::istream& in, complex& com) 
{   
    std::cout << "vvedite deictvit 4act complekcnogo 4icla ";
    in >> com.re; 
    std::cout << "vvedite mnimuyu 4act complekcnogo 4icla "; 
    in >> com.im;
    return in; 
}
 
complex& complex::operator+=(complex a) 
{ 
    re += a.re; 
    im += a.im; 
    return *this;
}
 
complex& complex::operator-=(complex a) 
{ 
    re -= a.re; 
    im -= a.im; 
    return *this;
} 
 
complex& complex::operator*=(complex a) 
{ 
    re *= a.re; 
    im *= a.im; 
    return *this;
} 
 
complex& complex::operator/=(complex a) 
{ 
    re /= a.re; 
    im /= a.im; 
    return *this;
} 
 
 
int main() 
{   double re, im; 
    setlocale(0, "rus");
    complex *com, *m;
    com = new complex[2];
    for (int i = 0; i < 2; i++) 
    {    
    std::cin >> *com ; 
    std::cout << *com << endl;
    m[i] = *com;
    }
    cout << "max complex 4iclo" << endl;
    if(m[1]>m[0])
    cout << m[1] << endl;
    else
    cout << m[0] << endl;
    getch();
}