Which of these exception specifications is correct, and why?
Suppose we have the class definitions, where the exception specification is as listed below:
```
class B { public: virtual void f() throw(int, double); }; class D:public B { public: virtual void f() //The exception specification you
//choose from the list goes here.
};
```
a) Use no exception specification.
b) throw ( )
c) throw(int)
d) throw(int, double)
e) throw(int , double, string)
f) throw(double);
g) None of these, because you can’t derive from a class where member functions have exception specifications.
b) throw ( ) , c) throw(int) , d) throw(int, double) , and f) throw(double);
a) Use of no exception specification conflicts with base class specification.
b) throw(int); //OK, more restrictive than base spec
c) throw(int, double); //OK, same as base class spec
d) throw(int, double, char);//error: conflicts with base
//class specification.
f) throw(double); //OK, more restrictive than base spec
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