Default function that just returns the passed value?

Default function that just returns the passed value?

References

Reference NO 1

http://stackoverflow.com/questions/15202474/default-function-that-just-returns-the-passed-value

Reference NO 2

http://www.autohotkey.com/docs/Functions.htm

Reference NO 3

http://www.cplusplus.com/doc/tutorial/functions2/

Reference NO 4

http://www.tutorialspoint.com/python/python_functions.htm

Reference NO 5

http://tldp.org/LDP/abs/html/complexfunct.html

Reference NO 6

http://php.net/manual/en/functions.arguments.php

Reference NO 7

http://v1.cherny.com/webdev/60/javascript-function-arguments-default-values-passing-objects-and-overloading

Reference NO 8

http://en.wikibooks.org/wiki/C%2B%2B_Programming/Code/Statements/Functions