Objective-C Version comparison [duplicate]

Objective-C Version comparison [duplicate]

References

Reference NO 1

http://stackoverflow.com/questions/13635732/objective-c-version-comparison

Reference NO 2

http://stackoverflow.com/questions/14036604/objective-c-nsobject-isequal-vs-comparison

Reference NO 3

http://www.techotopia.com/index.php/Working_with_String_Objects_in_Objective-C

Reference NO 4

http://www.dreamincode.net/forums/topic/68856-remove-duplicates-in-nsmutablearray/

Reference NO 5

https://coderwall.com/p/uwbkpa

Reference NO 6

http://rosettacode.org/wiki/Remove_duplicate_elements

Reference NO 7

http://refcardz.dzone.com/refcardz/objective-c-iphone-and-ipad

Reference NO 8

http://en.wikipedia.org/wiki/Null-terminated_string