CS304 Current Final Term Paper Fall 2013 File 7

70% of the paper was from past specially mcqs(moaaz's files)...long questions the ones with 5 marks were new...

The invigilator was like very kharoos ..she dint let me copy the question...so here are some of the questions I remember
Describe the way to declare a template function as a friend of any class. 2marks
Answer:- (Page 294)
Give the C++ code of template function to print the values of any type of array I int.this function will take 2 parameters one will be pointer and other will be will be size of array (mrk3)
Answer:- (Page 257)
Consider the code below,

1. template<typename T> class Test {
2. T value;
3. public:

1. Test( T val ) :  value(val){}

1. Test(const Test<T>& c) :  value(c.value) {}

1. };

1. int main() {
2. Test< int > t1( 0 ), t2( 0 );
3. Test< float > t3 = t1;
4. system("PAUSE");     
5. return 0;
6. }

Give line number having any error/errors in this code explain the reason for error/s and give corrected code as well.

q)Why Abstract class’s objects cannot be instantiated

 Answer:- (Page 230) 

q)What output is produced by the following code?

int wait_time=46;
try
{
cout “Try-block entered.\n”;
            if (wait_time > 30)
                throw wait_time;
            cout ”Leaving try-block.\n”;
}

catch ( int thrown_value)
{
cout “Exception thrown with\n””wait_time equal to “thrown_valueendl;
}
cout “After catch-block” endl;
q)Write C++ code for the overloaded subscript operator of following template Vector class.

template< class T >
class Vector {
private:
            T* ptr;
            int size;
            int index;
public:
       T& operator [](int); // overloaded subscript operator
};

What do you mean by Stack unwinding?

Answer :- pg 336
Write general syntax of nested try catch block?
Answer:- pg 336
Question  ( Marks: 3 ) Consider the code below, template< typename T > class T1 { public: T i; protected: T j; private: T k; friend void Test(); }; This code has a template class T1 with three members i,j and k and a friend function Test(), you have to describe which member/s of T1 will be available in function Test().

Answer:- All of them (i, j, k) will be available in function Test().