How to use $$Date function

Hi all,

How can I use this $$Date function for to set the value into variable and date comparison, Please help me.

Ex:
I have tried this but it doesn't work.

Variable:dateValStr: String
Variable:dateValDate: Date

;; It was working correctly
001: SET : dateValStr : "02/03/2013"

;; It was not working correctly and not set the value
002: SET : dateValDate : ($$Date:##dateValStr)
003: SET: dateValDate $$Date:"10-03-2013")
004: $$MachineDate <= ##dateValDate ;; Here dateValDate not set properly.

Please help me for How can I use this function and If you know please share your examples.

 

try with below code

$$MachineDate <=$$Reqobject: ##dateValDate