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Ingy döt Net 2023-07-01 11:58:00 -04:00
parent 7387c8f97b
commit cb5bb5e222
199093 changed files with 3378972 additions and 0 deletions
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16
Task/Singleton/Logtalk/singleton-1.logtalk Normal file
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:- object(singleton).
:- public(value/1).
value(Value) :-
state(Value).
:- public(set_value/1).
set_value(Value) :-
retract(state(_)),
assertz(state(Value)).
:- private(state/1).
:- dynamic(state/1).
state(0).
:- end_object.

7
Task/Singleton/Logtalk/singleton-2.logtalk Normal file
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| ?- singleton::value(Value).
Value = 0
yes
| ?- singleton::(set_value(1), value(Value)).
Value = 1
yes