How can I catch exceptions thrown from constructor of a global instance of a class?

Question

I know that having global variables is not appreciated. But in the book, The C++ programming language, by Bjarne Stroustrup, Author says that " The only way to gain control in case of throw from an initializer of a non local static object is set_unexpected() ". How is it done?

Answer 1

I posted the question in some other forums and got some answers.

First one was to declare a pointer rather than having an object and to initialize it in main()

Second one was to derive the class (whose constructor throws the exception ) from another class which performs set_terminate so as to set a meaningful handler. The second one seems to work fine in codeblocks ide.

The code I used to test check it is:

void f()        //Unexpected exception handler
{
    cout<<"Terminate called "<<endl;
    exit (0);
}
class A         //Base class that performs set_unexpected
{
    terminate_handler h;
public:
    A()
    {
        h=set_terminate(f);
    }
    ~A()
    {
        set_terminate(h);
    }
};
class B:public A    //Derived class that throws unexpected_exception
{
public:
    B()
    {
        throw 1;
    }
};
B b;
int main()
{
}

The program displays the message: "Terminate called" and exits.