Logtalk 2.21.0 files.
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Logtalk/examples/aliases/SCRIPT
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Logtalk/examples/aliases/SCRIPT
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=================================================================
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Logtalk - Object oriented extension to Prolog
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Release 2.21.0
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Copyright (c) 1998-2004 Paulo Moura. All Rights Reserved.
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=================================================================
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% start by loading the example:
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| ?- logtalk_load(loader).
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...
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% check the object square(_) public protocol:
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| ?- square(_)::current_predicate(Predicate).
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Predicate = side/1 ;
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Predicate = width/1 ;
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Predicate = height/1 ;
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Predicate = area/1
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yes
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% test the side/1 alias:
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| ?- square(2)::side(Side).
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Side = 2
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yes
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% check the object circle(_) public protocol:
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| ?- circle(_)::current_predicate(Predicate).
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Predicate = r/1 ;
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Predicate = rx/1 ;
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Predicate = ry/1 ;
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Predicate = area/1
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yes
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% test the r/1 alias:
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| ?- circle(3)::r(Radius).
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Radius = 3
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yes
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