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yap-6.3/Logtalk/manuals/refman/directives/protected1.html
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<title>Logtalk predicate directive: protected/1</title>
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<h2><code>protected/1</code></h2>
<h4>Description</h4>
<blockquote>
<pre>protected(Predicate)
protected(Predicate1, Predicate2, ...)
protected([Predicate1, Predicate2, ...])</pre>
<p>
Declares protected predicates. A protected predicate can only be called from the object containing the declaration or from an object that inherits the declaration.
</p>
</blockquote>
<h4>Template and modes</h4>
<blockquote>
<pre>protected(+predicate_indicator_term)</pre>
</blockquote>
<h4>Examples</h4>
<blockquote>
<pre>:- protected(init/1).
:- protected(print/2, convert/4).
:- protected([load/1, save/3]).</pre>
</blockquote>
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