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<h2><code><a class="back" title="Return to index" href="../index.html#set_logtalk_flag2">set_logtalk_flag/2</a></code></h2>
<h4>Description</h4>
<blockquote>
<pre>
set_logtalk_flag(Flag, Value)
</pre>
<p>
Sets Logtalk flag values.
</p>
</blockquote>
<h4>Template and modes</h4>
set_logtalk_flag(+atom, +atom)
<h4>Errors</h4>
<dl>
<dt>Flag is a variable:</dt>
<dd><code>instantiation_error</code></dd>
<dt>Value is a variable:</dt>
<dt>Flag is not an atom:</dt>
<dd><code>type_error(atom, Flag)</code></dd>
<dt>Flag is neither a variable nor a valid flag:</dt>
<dd><code>domain_error(valid_flag, Flag)</code></dd>
<dt>Value is not a valid value for flag Flag:</dt>
<dd><code>domain_error(valid_flag_value, Value)</code></dd>
<dt>Flag is a read-only flag:</dt>
<dd><code>permission_error(modify, read_only_flag, Flag)</code></dd>
</dl>
<h4>Examples</h4>
| ?- set_logtalk_flag(xml, on).
<p class="center">
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Last updated on: August 6, 2002
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