[Description] The compilation date of the current source file. The date is a string literal of the form Mmm dd yyyy. The month name Mmm is the same as for dates generated by the library function asctime declared in TIME.H. [Macro] 
__DATE__
_ _ D A T E _ _
_ _ F I L E _ _
_ _ L I N E _ _
_ _ S T D C _ _
_ _ T I M E _ _
_ _ T I M E S T A M P _ _