Template operator overloading without class for complex number addition and multiplication.

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Can anyone help me to write a code for "template operator overloading without class for complex number addition and multiplication"the main theme is i should not use "class" and i can use structure and i should use "template" to add and multiply for two complex number, i tried to search in internet but i did not found one.

1.here is my code:
template <typename complex_t> // template inz.
// struct
struct complex
{
      complex Max(complex_t real_v, complex_t imag_v) 
      {       
// i'm not sure what i have to declare inside this function 
        
      return 0;
      }//template 
      complex()//default value
      {
      int real=0;
      int imag=0;       
      }
};
complex operator + complex (Max(a,b))
{
  complex c;
  c.real=a.real+b.real;
  c.imag=a.imag+b.imag;        
  return(c);
}  
 
complex operator ++ max(complex& c3)  // postfix increment
{   
  c3.real = c3.real + 1;
  c3.imag = c3.imag + 1;
  return c3;
}
 
//main
void main()  
{  
complex c1(1,-2),c2(2.3,19),c3;
c3=c1+c2;     
c1++;
}

What I have tried:

i have tried to search in internet but i did not get any clear answer and even i tried to write code but it's not working.

Posted 15-Sep-16 20:32pm

Arul Prasath Kolandasamy

Updated 15-Sep-16 22:02pm

v4

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CPallini · Accepted Answer · 2016-09-15T21:26:00

Why do you need templates for such a task?
Could you please show us your 'not working code'?
Here an example of global (without class) operator overloading: How to overload opAssign operator globally in C++ - Stack Overflow[^].

[update]
I give you an example

#include <iostream>
using namespace std;

template <typename complex_t>
struct complex
{
  complex_t real, imag;
  complex( complex_t r, complex_t i):real(r), imag(i){}
  complex():real(complex_t()), imag(complex_t()){}
};

template <typename complex_t >
complex<complex_t> operator + ( const complex<complex_t> & a, const complex<complex_t> & b)
{
  complex<complex_t> c;
  c.real = a.real + b.real;
  c.imag = a.imag + b.imag;
  return(c);
}

int main()
{
  complex <double> c1(1,-2);
  complex <double> c2(2.3,19);
  complex <double> c3 = c1 + c2;

  cout << "c3.real = " << c3.real << ", c3.imag = " << c3.imag << endl;
}

Note, since C++11, you might write

template <typename complex_t>
struct complex
{
  complex_t real{}, imag{};
  complex( complex_t r, complex_t i):real(r), imag(i){}
  complex(){}
};

instead.

[/update]