ExceptExpo, C++ (gcc)

ExceptExpo

//g++  7.4.0

////////////////////////////////////////////////////////////////////////////
//ExceptExpo: exception handling while overloading exponentiation operator
//this code is created by Rezaul Hoque on July 03,2022;
//contact:jewelmrh@yahoo.com;Dhaka,Bangladesh;https://rezaulhoque.wordpress.com,https://hoquestake.blogspot.com
//note: codes shared by Rezaul Hoque on rextester are not for sale; they are created and shared to facilitate the algorithm learning process; many like Hoque use this platform to practice programming ;Rezaul hopes his contribution helps others to fine tune their learning;
//////////////////////////////////////////////////////////////////////////////
#include <iostream>
#include <string>
#include <cmath>

class noNeg{};
class noZero{};

class Expo{
 int x,y;
public:
Expo(int b,int c){
  if(b==0||c==0){
     try {
         throw noZero();
          }
    catch(noZero z){
            std::cout<<"Number can't be zero. \n";
             }
}

if(c<0||b<0){
     try {
         throw noNeg();
          }
    catch(noNeg z){
            std::cout<<"Number can't be negative. \n";
             }
}
x=b;
y=c;
}
~Expo(){}
Expo operator&&(const int&);

int getId(){return x;}
int getTel(){return y;}
void disp(){ if(x<0||y<0)
    std::cout<<"Sorry, unable to process!";
else
    std::cout<<x<<"/"<<y;
}
};
Expo Expo::operator&&(const int& n){

return Expo(pow(x,n),pow(y,n));
}
int main()
{
Expo e(-3,4);
e.disp();
std::cout<<"\n";
Expo po=e&&2;
po.disp();
return 0;
}


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