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The ‘this’ pointer is passed as a hidden argument to all nonstatic member function calls and is available as a local variable within the body of all nonstatic functions. ‘this’ pointer is a constant pointer that holds the memory address of the current object. ‘this’ pointer is not available in static member functions as static member functions can be called without any object (with class name).
For a class X, the type of this pointer is ‘X* const’. Also, if a member function of X is declared as const, then the type of this pointer is ‘const X *const’

http://www.geeksforgeeks.org/this-pointer-in-c/

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NIELIT 2016 MAR Scientist B - Section C: 14
Prior to using a pointer variable it should be declared. initialized. both declared and initialized. none of these.
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