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< title > Logtalk predicate directive: protected/1< / title >
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< div class = "top-left" > Logtalk reference manual< / div >
< div class = "top-right" > Predicate directive: protected/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 = "codenp" > protected/1< span id = "directives_protected1" / > < / h2 >
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< h4 > Description< / h4 >
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< pre > protected(Functor/Arity)
protected(Functor1/Arity1, Functor2/Arity2, ...)
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protected([Functor1/Arity1, Functor2/Arity2, ...])
protected(Functor//Arity)
protected(Functor1//Arity1, Functor2//Arity2, ...)
protected([Functor1//Arity1, Functor2//Arity2, ...])< / pre >
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< p >
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Declares protected predicates and protected grammar rule non-terminals. A protected predicate can only be called from the object containing the directive or from an object that inherits the directive. A protected non-terminal can only be used as an argument in a < 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 the object containing the directive or from an object that inherits the directive.
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< / p >
< h4 > Template and modes< / h4 >
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< pre > protected(+predicate_indicator_term)
protected(+non_terminal_indicator_term)< / pre >
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< h4 > Examples< / h4 >
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< pre > :- protected(init/1).
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:- protected(print/2, convert/4).
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:- protected([load/1, save/3]).< / pre >
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< span > Copyright © < a href = "mailto:pmoura@logtalk.org" > Paulo Moura< / a > — < a href = "http://logtalk.org" > Logtalk.org< / a > < / span > < br / >
< span > Last updated on: October 26, 2006< / span >
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