divby0.cxx

#include <exception>
#include <iostream>

using namespace std;

class divby0 : public exception
{
    const char *what() const throw() { return "Cannot divide by 0"; }
};

int divide(int a, int b)
{
    if (b == 0)
        throw divby0();
    return a / b;
}

int main()
{
    try
    {
        int a = 10;
        int b = 5;
        int c = 0;
        int d = 1;
        cout << a << " / " << b << " = " << divide(a, b) << endl;
        cout << a << " / " << c << " = " << divide(a, c) << endl;
        cout << a << " / " << d << " = " << divide(a, d) << endl;
    }
    catch (std::exception &e)
    {
        cout << e.what() << endl;
    }
    return 0;
}