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64 lines
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64 lines
2.5 KiB
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<title>Logtalk predicate directive: private/1</title>
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<div class="top-left">Logtalk reference manual</div>
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<div class="top-right">Predicate directive: private/1</div>
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<div class="bottom-left"><span class="page"/></div>
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<div class="bottom-right"><span class="page"/></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 id="directives_private1" class="codenp">private/1</h2>
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<h4>Description</h4>
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<pre>private(Functor/Arity)
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private(Functor1/Arity1, Functor2/Arity2, ...)
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private([Functor1/Arity1, Functor2/Arity2, ...])
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private(Functor//Arity)
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private(Functor1//Arity1, Functor2//Arity2, ...)
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private([Functor1//Arity1, Functor2//Arity2, ...])</pre>
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<p>
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Declares private predicates and private grammar rule non-terminals. A private predicate can only be called from the object containing the private directive. A private non-terminal can only be used in a call of the <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> methods from the object containing the private directive.
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</p>
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<h4>Template and modes</h4>
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<pre>private(+predicate_indicator_term)
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private(+non_terminal_indicator_term)</pre>
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<h4>Examples</h4>
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<pre>:- private(counter/1).
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:- private(init/1, free/1).
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:- private([data/3, key/1, keys/1]).</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/>
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<span>Last updated on: October 26, 2006</span>
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