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<title>Logtalk built-in method: current_predicate/1</title>
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<div class="top-left">Logtalk reference manual</div>
<div class="top-right">Built-in method: current_predicate/1</div>
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<h2 class="code">current_predicate/1</h2>
<h4>Description</h4>
<pre>current_predicate(Predicate)</pre>
<p>
Enumerates, by backtracking, the visible user predicates for an object.
</p>
<h4>Template and modes</h4>
<pre>current_predicate(?predicate_indicator)</pre>
<h4>Errors</h4>
<dl class="errors">
<dt>Predicate is neither a variable nor a valid predicate indicator:</dt>
<dd><code>type_error(predicate_indicator, Predicate)</code></dd>
</dl>
<h4>Examples</h4>
<dl class="examples">
<dt>To enumerate, by backtracking, the user predicates visible in <a class="glossary" title="Go to glossary definition" href="../../glossary.html#this">this</a>:</dt>
<dd><code>current_predicate(Predicate)</code></dd>
<dt>To enumerate, by backtracking, the public and protected user predicates visible in <a class="glossary" title="Go to glossary definition" href="../../glossary.html#self">self</a>:</dt>
<dd><code>::current_predicate(Predicate)</code></dd>
<dt>To enumerate, by backtracking, the public user predicates visible for an object:</dt>
<dd><code>Object::current_predicate(Predicate)</code></dd>
</dl>
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<span class="date">Last updated on: November 16, 2005</span>
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