using ?? Operator

using ?? Operator

References

Reference NO 1

http://www.cplusplus.com/doc/tutorial/operators/

Reference NO 2

http://stackoverflow.com/questions/8721764/c-operator-and-using-declaration-left-operand-must-be-l-value-error

Reference NO 3

http://knowledgecenter.unr.edu/instruction/help/booltips.html

Reference NO 4

http://www.filemaker.com/help/html/create_db.8.37.html

Reference NO 5

http://msdn.microsoft.com/en-us/library/85w54y0a.aspx

Reference NO 6

http://weblogs.asp.net/scottgu/archive/2007/09/20/the-new-c-null-coalescing-operator-and-using-it-with-linq.aspx

Reference NO 7

http://php.net/manual/en/language.operators.php

Reference NO 8

#EANF#