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()));

[Bazzy]

That is not standard C++.
C doesn't have a date library but you can use the C one: http://www.cplusplus.com/reference/clibrary/ctime/
the functions mktime and difftime should help you