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<title>Logtalk built-in predicate: current_protocol/1</title>
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<div class="top-left">Logtalk reference manual</div>
<div class="top-right">Built-in predicate: current_protocol/1</div>
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<h2 class="code">current_protocol/1</h2>
<h4>Description</h4>
<pre>current_protocol(Protocol)</pre>
<p>
Enumerates, by backtracking, all currently defined protocols. All protocols are found, either static, dynamic, or built-in.
</p>
<h4>Template and modes</h4>
<pre>current_protocol(?protocol_identifier)</pre>
<h4>Errors</h4>
<dl class="errors">
<dt>Protocol is neither a variable nor a valid protocol identifier:</dt>
<dd><code>type_error(protocol_identifier, Protocol)</code></dd>
</dl>
<h4>Examples</h4>
<pre>| ?- current_protocol(listp).</pre>
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<span class="date">Last updated on: November 16, 2005</span>
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