CS304P Quiz 4 by Shahid and Ziddi

Q1. Which of the following is true about friend functions in template classes?

1. They can only access public members of the class.
2. They must be defined inside the class.
3. They are inherited by derived classes.
4. They can access private and protected members of the class.

Correct answer: They can access private and protected members of the class.

Q2. What keyword is used to define a generic function template?

1. typename
2. generic
3. template
4. class

Correct answer: template

Q3. If a function template has parameters `T` and `U`, calling `func(1, 2.5)` results in:

1. Both deduced as double
2. Compilation error
3. T=int, U=double
4. Both deduced as int

Correct answer: T=int, U=double

Q4. When is a class template instantiated?

1. When linked
2. When declared
3. At runtime
4. At compile time

Correct answer: At compile time

Q5. Which of the following is the correct syntax for creating a template class X friend of a template class Y?

1. X<T> friend;
2. X<T>;
3. friend X;
4. friend X<T>;

Correct answer: friend X<T>;

Q6. What feature enables same-named template functions to exist?

1. Specialization
2. Function overloading
3. Inheritance
4. Polymorphism

Correct answer: Specialization

Q7. Which keyword is used to define a template in C++?

1. class
2. function
3. typename
4. template

Correct answer: template

Q8. To accept two type parameters, __________ is written.

1. template<class T, U>
2. template<typename T U>
3. template<class T U>
4. template<typename T, typename U>

Correct answer: template<typename T, typename U>

Q9. Which of the following is the correct syntax for creating a function Test(T) friend of a template class?

1. void Test(T);
2. void friend Test(T);
3. void Test(T) friend;
4. friend void Test(T);

Correct answer: friend void Test(T);

Q10. Which of the following is an example of partial specialization?

1. template<class T, float>
2. template<int>
3. template<int , float , char>
4. template<class T, class U>

Correct answer: template<class T, float>