In this tutorial, we will be discussing how to handle the divide by Zero exception in C++.
Division by zero is an undefined entity in mathematics, and we need to handle it properly while programming so that it doesn’t return at error at the user end.
#include <iostream> #include <stdexcept> using namespace std; //handling divide by zero float Division(float num, float den){ if (den == 0) { throw runtime_error("Math error: Attempted to divide by Zero\n"); } return (num / den); } int main(){ float numerator, denominator, result; numerator = 12.5; denominator = 0; try { result = Division(numerator, denominator); cout << "The quotient is " << result << endl; } catch (runtime_error& e) { cout << "Exception occurred" << endl << e.what(); } }
Exception occurred Math error: Attempted to divide by Zero
#include <iostream> #include <stdexcept> using namespace std; //user defined class for handling exception class Exception : public runtime_error { public: Exception() : runtime_error("Math error: Attempted to divide by Zero\n") { } }; float Division(float num, float den){ if (den == 0) throw Exception(); return (num / den); } int main(){ float numerator, denominator, result; numerator = 12.5; denominator = 0; //trying block calls the Division function try { result = Division(numerator, denominator); cout << "The quotient is " << result << endl; } catch (Exception& e) { cout << "Exception occurred" << endl << e.what(); } }
Exception occurred Math error: Attempted to divide by Zero
#include <iostream> #include <stdexcept> using namespace std; //defining function to handle exception float CheckDenominator(float den){ if (den == 0) { throw runtime_error("Math error: Attempted to divide by zero\n"); } else return den; } float Division(float num, float den){ return (num / CheckDenominator(den)); } int main(){ float numerator, denominator, result; numerator = 12.5; denominator = 0; try { result = Division(numerator, denominator); cout << "The quotient is " << result << endl; } catch (runtime_error& e) { cout << "Exception occurred" << endl << e.what(); } }
Exception occurred Math error: Attempted to divide by zero