Reply To: Smart pointers…

In computer science, a smart pointer is an abstract data type that simulates a pointer while providing additional features, such as automatic garbage collection or bounds checking. These additional features are intended to reduce bugs caused by the use of pointers while retaining efficiency. Smart pointers typically keep track of the objects they point to for the purpose of memory management.
 
For comlete reading goto: http://en.wikipedia.org/wiki/Smart_pointer