이 튜토리얼에서는 C++에서 0으로 나누기 예외를 처리하는 방법에 대해 논의할 것입니다.
0으로 나누기는 수학에서 정의되지 않은 엔터티이며 사용자 측에서 오류로 반환되지 않도록 프로그래밍하는 동안 올바르게 처리해야 합니다.
runtime_error 클래스 사용
예시
#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(); } }
출력
Exception occurred Math error: Attempted to divide by Zero
사용자 정의 예외 처리 사용
예시
#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(); } }
출력
Exception occurred Math error: Attempted to divide by Zero
스택 해제 사용
예시
#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(); } }
출력
Exception occurred Math error: Attempted to divide by Zero