Question

Which of the following job is done by the instruction ++*p for an integer pointer p?

(a) increment value contained at address p

(b) increment address contained in p

(c) Both increment value contained at address p and increment address contained in p

(d) neither increment value contained at address p nor increment address contained in p

This question was addressed to me by my school teacher while I was bunking the class.

This is a very interesting question from Unsafe code & Pointers Basics topic in section Miscellaneous topics of C#

Answer 1

Right choice is (a) increment value contained at address p

To explain:   class UnsafeCode

             {

                 unsafe static void Main()

                 {

                      int n = 10;

                      int* p = &n;

                      Console.WriteLine(*p);

                 }

             }

Output : 10 +  1 = 11.