C++ Function Test – 2

1. Which of the following feature is used in function overloading and function with default argument?

2. Where should default parameters appear in a function prototype?

3. What will be the output of the following C++ code?

#include<iostream>
using namespace std;
  
class Test
{
  protected:
    int x;
  public:
    Test (int i):x(i) { }
    void fun() const  { cout << "fun() const " << endl; }
    void fun()        {  cout << "fun() " << endl;     }
};
  
int main()
{
    Test t1 (10);
    const Test t2 (20);
    t1.fun();
    t2.fun();
    return 0;
}

4. If an argument from the parameter list of a function is defined constant then _______________

5. What happens to a function defined inside a class without any complex operations (like looping, a large number of lines, etc)?

6. In which of the following cases inline functions may not word?
i) If the function has static variables.
ii) If the function has global and register variables.
iii) If the function contains loops
iv) If the function is recursive

7. What is an inline function?

8. What will be the output of the following C++ code?

#include<iostream>
using namespace std;
 
int fun(int x = 0, int y = 0, int z)
{  return (x + y + z); }
 
int main()
{
   cout << fun(10);
   return 0;
}

9. When we define the default values for a function?

10. What will be the output of the following C++ code?

#include <iostream>
using namespace std;
void square (int *x, int *y)
{
	*x = (*x) * --(*y);
}
int main ( )
{
	int number = 30;
	square(&number, &number);
	cout << number;
	return 0;
}

11. What will be the output of the following C++ code?

#include <iostream>
using namespace std;
 
int fun(int=0, int = 0);
 
int main()
{
  cout << fun(5);
  return 0;
}
int fun(int x, int y) { return (x+y); }

12. An inline function is expanded during ______________

13. Which of the following is the default return value of functions in C++?

14. Which of the following is important in a function?

15. From which function the execution of a C++ program starts?