Data Structures اسئلة واجوبة المقابلات

Question: What is significance of  ? * ? ?

Answer: The symbol ?*? tells the computer that you are declaring a pointer.
Actually it depends on context.
In a statement like int *ptr; the ?*? tells that you are declaring a pointer.
In a statement like int i = *ptr; it tells that you want to assign value pointed to by ptr to variable i.

The symbol ?*? is also called as Indirection Operator/ Dereferencing Operator.