Different between const int * , int const * and int * const

* Question: 

What different between const int * , int const * , int * const ?

* Answer: 

• int*                                                           - pointer to int
• const int * == int const *                     - pointer to const int
• int * const - const pointer to int
• const int * const == int const * const - const pointer to const int

• int **                       - pointer to pointer to int
• int ** const             - a const pointer to a pointer to an int
• int * const *           - a pointer to a const pointer to an int
• int const **            - a pointer to a pointer to a const int
• int * const * const - a const pointer to a const pointer to an int

* Reference: 

http://stackoverflow.com/questions/1143262/what-is-the-difference-between-const-int-const-int-const-int-const