Thread: When would you choose to return an error code rather than throw an exception?

Could anybody tell me where to find the answers to the following questions:

Explain what happens when an exception is thrown in C++.

What happens if an exception is throws from an object's constructor?

What happens if an exception is throws from an object's destructor?

When would you choose to return an error code rather than throw an exception?

Thank you, But they are NOT homeworks.

I came across the code:

Code:

class A {
		public:
			A() {
                             cout << "A::A()" << endl;
                        }
			~A() {
                             cout << "A::~A()" << endl; throw "A::exception";
                        }
		};

		class B {
		public:
			B() {
                                cout << "B::B()" << endl; throw "B::exception";
                        }
			~B() {
                                cout << "B::~B()";
                        }
		};


int main(){
			try {
				cout << "Entering try...catch block" << endl;

				A	objectA;
				B	objectB;

				cout << "Exiting try...catch block" << endl;
			} 
			catch (char* ex) {
				cout << ex << endl;
return0;
}

When I run it using VS 2005, it crashes! Anybody knows why?

this is why