This Pointer

• The 'this' pointer is used as a pointer to the class object instance by the member function.
• The address of the class instance is passed as an implicit parameter to the member functions.
• It is a common knowledge that C++ keeps only one copy of each member function and the data members are allocated memory for all of their instances.
• This kind of various instances of data is maintained by use of this pointer.
  
  

  Important notes on this pointer

• this pointer stores the address of the class instance, to enable pointer access of the members to the member functions of the class.
• this pointer is not counted for calculating the size of the object.
• this pointers are not accessible for static member functions.
• this pointers are not modifiable.
  Example

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