// fig12_02.cpp
// Example that throws an exception on 
// an attempt to divide by zero.
#include <fmt/format.h>
#include <iostream>
#include "DivideByZeroException.h" // DivideByZeroException class 

// performs division only if the denominator is not zero; 
// otherwise, throws DivideByZeroException object 
double quotient(double numerator, double denominator) {
   // throw DivideByZeroException if trying to divide by zero
   if (denominator == 0.0) {
      throw DivideByZeroException{}; 
   }

   // return division result
   return numerator / denominator;
}

int main() {
   int number1{0}; // user-specified numerator
   int number2{0}; // user-specified denominator

   std::cout << "Enter two integers (end-of-file to end): ";

   // enable user to enter two integers to divide
   while (std::cin >> number1 >> number2) {
      // try block contains code that might throw exception       
      // and code that will not execute if an exception occurs    
      try {
         double result{quotient(number1, number2)};
         std::cout << fmt::format("The quotient is: {}\n", result);
      }
      catch (const DivideByZeroException& divideByZeroException) {
         std::cout << fmt::format("Exception occurred: {}\n",
            divideByZeroException.what());
      }

      std::cout << "\nEnter two integers (end-of-file to end): ";
   }

   std::cout << '\n';
}



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