How can I catch runtime error in C++

Question

By referring to C++ catching all exceptions

try {
    int i = 0;
    int j = 0/i; /* Division by  0 */
    int *k = 0;
    std::cout << *k << std::endl;  /* De-reference invalid memory location. */
}
catch (...) {
    std::cout << "Opps!" << std::endl;
}

The above run-time error are unable to be detected. Or, am I having wrong expectation on C++ exception handling feature?

Answer 1

If you dereference a pointer that doesn't point to an object, you don't get an exception, you get undefined behavior. Anything can happen.

Usually, if you dereference a null pointer, as you do in your example, the program will crash.

Answer 2

/EHa is the magic compiler switch to make Visual Studio treat SEH exceptions as C++ exceptions. Then you can "catch" access violation and divide by zero exceptions.

This is generally not advised.