int **ptr; is?
1. Pointer to integer
2. None of these
3. Pointer to pointer
4. Invalid declaration

• if we declare
  int *ptr than this is integer type pointer.
  when we declare
  int **ptr; // declaring double pointers
  We know that a pointer points to a location in memory and thus used to store address of variables.Such as:
  int main()
  {
  int a = 8; *ptr; //*ptr is int type pointer
  ptr = &a;
  return 0;
  }
  So, when we define a pointer to pointer. The first pointer is used to store the address of second pointer. That is why they are also known as double pointers or pointer to pointer.
• 5 years agoHelpfull: Yes(6) No(0)
• 3. pointer to pointer
• 5 years agoHelpfull: Yes(2) No(0)