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<h2><code><a class="back" title="Return to index" href="../index.html#protocol1_2">protocol/1-2</a></code></h2>
<h4>Description</h4>
<blockquote>
<pre>
protocol(Protocol)
protocol(Protocol,
extends(Protocols))
</pre>
<p>
Starting protocol directive.
</p>
</blockquote>
<h4>Template and modes</h4>
protocol(+protocol_identifier)
protocol(+protocol_identifier,
extends(+extended_protocols))
<h4>Examples</h4>
:- protocol(listp).
:- protocol(listp,
extends(compoundp)).
:- protocol(queuep,
extends(protected::listp)).
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Last updated on: October 21, 2001
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