date comparison

[privs]

I am using c++ 2006 by borland delphi

I have two dates that i want compared , basically i want to find out how may minutes between them
I am a novice when it comes to C++ and i found this on the help, how do i use this in my code:

iLeftVal = __int64 MinutesBetween(TimeToStr(Now()) ,TimeToStr(Now()));

[R0mai]

look into boost's date time library
http://www.boost.org/doc/libs/1_40_0/doc/html/date_time.html