A pointer is an address or the name for the location for an item of data.
An uninitialised pointer is one that has not been assigned an initial value or item of data.
A null pointer is a pointer that holds the value zero (0), which simply means it does not point at anything in particular. It is an error to try and dereference memory address 0x0, as this address is reserved by the system, and will result in undefined behaviour. Pointers must be tested to ensure they hold a non-null address before being dereferenced. An uninitialised pointer is the same as any other uninitialised variable; no value has yet been assigned to it. The value of an uninitialised variable will be whatever value happens to reside in the memory allocated to that variable. All variables, including pointer variables, must be initialised before being accessed for the first time and most compilers will warn against accessing an uninitialised value. Dereferencing an uninitialised pointer has undefined behaviour.
its just an programming error in farmville .it would soon be alright null definition in Programming : A special value used in several languages to represent the thing referred to by an uninitialised pointer/database
its just an programming error in farmville .it would soon be alright null definition in Programming : A special value used in several languages to represent the thing referred to by an uninitialised pointer/database
ts just an programming error in farmville .it would soon be alright null definition in Programming : A special value used in several languages to represent the thing referred to by an uninitialised pointer
its just an programming error in farmville .it would soon be alright null definition in Programming : A special value used in several languages to represent the thing referred to by an uninitialised pointer/database
ts just an programming error in farmville .it would soon be alright null definition in Programming : A special value used in several languages to represent the thing referred to by an uninitialised pointer
its just an programming error in farmville .it would soon be alright null definition in Programming : A special value used in several languages to represent the thing referred to by an uninitialised pointer/database
its just an programming error in farmville .it would soon be alright null definition in Programming : A special value used in several languages to represent the thing referred to by an uninitialised pointer/database
its just an programming error in farmville .it would soon be alright null definition in Programming : A special value used in several languages to represent the thing referred to by an uninitialised pointer/database
its just an programming error in farmville .it would soon be alright null definition in Programming : A special value used in several languages to represent the thing referred to by an uninitialised pointer/database
its just an programming error in farmville .it would soon be alright null definition in Programming : A special value used in several languages to represent the thing referred to by an uninitialised pointer/database
its just an programming error in farmville .it would soon be alright null definition in Programming : A special value used in several languages to represent the thing referred to by an uninitialised pointer/database