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<h2><code><a class="back" title="Return to index" href="../index.html#protocol1_2">protocol/1-2</a></code></h2>
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<h4>Description</h4>

<blockquote>
<pre>
protocol(Protocol)

protocol(Protocol,
    extends(Protocols))
</pre>
<p>
	Starting protocol directive.
</p>
</blockquote>

<h4>Template and modes</h4>

<blockquote>
<pre>
protocol(+protocol_identifier)

protocol(+protocol_identifier,
    extends(+extended_protocols))
</pre>
</blockquote>


<h4>Examples</h4>

<blockquote>
<pre>
:- protocol(listp).

:- protocol(listp,
    extends(compoundp)).

:- protocol(queuep,
    extends(protected::listp)).
</pre>
</blockquote>

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<strong><a href="object1_4.html">Previous</a> | <a href="uses1.html">Next</a> | <a href="../index.html">Table of Contents</a> | <a href="../../bibliography.html">Bibliography</a> | <a href="../../glossary.html">Glossary</a></strong>
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Last updated on: August 6, 2002
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