In C++ programming, exception handling is performed using try/catch statement. The C++ try block is used to place the code that may occur exception. The catch block is used to handle the exception.
C++ example without try/catch
- #include <iostream>
- using namespace std;
- float division(int x, int y) {
- return (x/y);
- }
- int main () {
- int i = 50;
- int j = 0;
- float k = 0;
- k = division(i, j);
- cout << k << endl;
- return 0;
- }
Output:
Floating point exception (core dumped)
C++ try/catch example
- #include <iostream>
- using namespace std;
- float division(int x, int y) {
- if( y == 0 ) {
- throw "Attempted to divide by zero!";
- }
- return (x/y);
- }
- int main () {
- int i = 25;
- int j = 0;
- float k = 0;
- try {
- k = division(i, j);
- cout << k << endl;
- }catch (const char* e) {
- cerr << e << endl;
- }
- return 0;
- }
Output:
Attempted to divide by zero!
