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yap-6.3/Logtalk/examples/parametric/SCRIPT

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=================================================================
Logtalk - Object oriented extension to Prolog
Release 2.8.4
Copyright (c) 1998-2001 Paulo Moura. All Rights Reserved.
=================================================================
% some queries using the time and date parametric objects:
| ?- date(Year, Month, Day)::today.
Year = 2000
Month = 8
Day = 15
Yes
| ?- date(Year, _, _)::(today, leap_year).
Year = 2000
yes
| ?- time(Hours, Mins, Secs)::now.
Hours = 13
Mins = 52
Secs = 42
Yes