Function Pointers

The exception specifications of a function pointer must match the function
 void  foo()  throw  (X);
 void  foo2();

 void  (*pf1)()  throw  (X,Y)  =  &foo;  //  OK
 void  (*pf2)()  throw  ()  =  &foo;        //  error
 void  (*pf3)()  throw  (X)  =  &foo2;   //  error