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< title > Logtalk predicate directive: public/1< / title >
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< div class = "top-left" > Logtalk reference manual< / div >
< div class = "top-right" > Predicate directive: public/1< / div >
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< div class = "navtop" > < a href = "../../index.html" > contents< / a > > < a href = "../index.html" > reference manual< / a > > < a href = "../index.html#directives" > directives< / a > < / div >
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< h2 class = "code" > public/1< / h2 >
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< h4 > Description< / h4 >
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< pre > public(Functor/Arity)
public(Functor1/Arity1, Functor2/Arity2, ...)
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public([Functor1/Arity1, Functor2/Arity2, ...])
public(Functor//Arity)
public(Functor1//Arity1, Functor2//Arity2, ...)
public([Functor1//Arity1, Functor2//Arity2, ...])< / pre >
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< p >
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Declares public predicates and public grammar rule non-terminals. A public predicate can be called from any object. A public non-terminal can be used as an argument in < a title = "Consult reference manual" href = "../methods/phrase2.html" > < code > phrase/2< / code > < / a > and < a title = "Consult reference manual" href = "../methods/phrase3.html" > < code > phrase/3< / code > < / a > messages sent from any object.
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< / p >
< h4 > Template and modes< / h4 >
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< pre > public(+predicate_indicator_term)
public(+non_terminal_indicator_term)< / pre >
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< h4 > Examples< / h4 >
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< pre > :- public(ancestor/1).
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:- public(instance/1, instances/1).
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:- public([leaf/1, leaves/1]).< / pre >
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< span class = "date" > Last updated on: November 16, 2005< / span >
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