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<title>Logtalk built-in predicate: current_logtalk_flag/2</title>
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<body>
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2005-12-24 18:00:21 +00:00
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<div class="top-left">Logtalk reference manual</div>
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<div class="top-right">Built-in predicate: current_logtalk_flag/2</div>
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<div class="bottom-left"><span class="page"/></div>
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<div class="bottom-right"><span class="page"/></div>
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<div class="navtop"><a href="../../index.html">contents</a> > <a href="../index.html">reference manual</a> > <a href="../index.html#builtins">built-in predicates</a></div>
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<h2 class="code">current_logtalk_flag/2</h2>
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<h4>Description</h4>
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<pre>current_logtalk_flag(Flag, Value)</pre>
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<p>
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Enumerates, by backtracking, the current Logtalk flag values.
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</p>
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<h4>Template and modes</h4>
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<pre>current_logtalk_flag(?atom, ?atom)</pre>
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<h4>Errors</h4>
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<dl class="errors">
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<dt>Flag is neither a variable nor an atom:</dt>
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<dd><code>type_error(atom, Flag)</code></dd>
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<dt>Flag is not a valid flag:</dt>
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<dd><code>domain_error(valid_flag, Value)</code></dd>
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</dl>
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<h4>Examples</h4>
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<pre>| ?- current_logtalk_flag(xml, Value).</pre>
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<div class="footer">
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<div class="navbottom"><a href="../index.html#builtins">previous</a> | <a href="../../glossary.html">glossary</a> | <a href="set_logtalk_flag2.html">next</a></div>
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<div class="copyright">Copyright © <a href="mailto:pmoura@logtalk.org">Paulo Moura</a> — <a href="http://www.logtalk.org">Logtalk.org</a></div>
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<span class="date">Last updated on: November 16, 2005</span>
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