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yap-6.3/Logtalk/examples/parametric/SCRIPT
pmoura 385035f2a5 Logtalk 2.22.1 files.
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2004-12-05 21:52:49 +00:00

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=================================================================
Logtalk - Object oriented extension to Prolog
Release 2.22.1
Copyright (c) 1998-2004 Paulo Moura. All Rights Reserved.
=================================================================
% start by loading the example:
| ?- logtalk_load(parametric(loader)).
...
% 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 = 2002
yes
| ?- time(Hours, Mins, Secs)::now.
Hours = 13
Mins = 52
Secs = 42
Yes