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git-svn-id: https://yap.svn.sf.net/svnroot/yap/trunk@955 b08c6af1-5177-4d33-ba66-4b1c6b8b522a
77 lines
2.2 KiB
HTML
77 lines
2.2 KiB
HTML
<?xml version="1.0" encoding="iso-8859-1"?>
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<?xml-stylesheet type="text/css" href="../../styles.css" ?>
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
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"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
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<html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en">
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<head>
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<meta http-equiv="content-type" content="text/html; charset=iso-8859-1" />
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<title>Logtalk built-in predicate: set_logtalk_flag/2</title>
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<link rel="stylesheet" href="../../styles.css" type="text/css" />
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</head>
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<body>
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<div class="navtop">
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<a href="../../index.html">contents</a> > <a href="../index.html">reference manual</a> > <a href="../index.html#builtins">built-in predicates</a>
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</div>
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<h2><code>set_logtalk_flag/2</code></h2>
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<h4>Description</h4>
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<blockquote>
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<pre>set_logtalk_flag(Flag, Value)</pre>
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<p>
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Sets Logtalk flag values.
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</p>
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</blockquote>
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<h4>Template and modes</h4>
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<blockquote>
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<pre>set_logtalk_flag(+atom, +atom)</pre>
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</blockquote>
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<h4>Errors</h4>
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<blockquote>
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<dl>
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<dt>Flag is a variable:</dt>
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<dd><code>instantiation_error</code></dd>
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<dt>Value is a variable:</dt>
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<dd><code>instantiation_error</code></dd>
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<dt>Flag is not an atom:</dt>
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<dd><code>type_error(atom, Flag)</code></dd>
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<dt>Flag is neither a variable nor a valid flag:</dt>
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<dd><code>domain_error(valid_flag, Flag)</code></dd>
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<dt>Value is not a valid value for flag Flag:</dt>
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<dd><code>domain_error(valid_flag_value, Value)</code></dd>
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<dt>Flag is a read-only flag:</dt>
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<dd><code>permission_error(modify, read_only_flag, Flag)</code></dd>
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</dl>
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</blockquote>
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<h4>Examples</h4>
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<blockquote>
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<pre>| ?- set_logtalk_flag(xml, on).</pre>
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</blockquote>
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<div class="navbottom">
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<a href="current_logtalk_flag2.html">previous</a> | <a href="../../glossary.html">glossary</a> | <a href="forall2.html">next</a>
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</div>
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<div class="copyright">
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Copyright © <a href="mailto:pmoura@logtalk.org">Paulo Moura</a> — <a href="http://www.logtalk.org">Logtalk.org</a>
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</div>
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<div class="footer">
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<p><span class="bleft"><a href="http://validator.w3.org/check/referer">XHTML</a> + <a href="http://jigsaw.w3.org/css-validator/check/referer">CSS</a></span><span class="bright">Last updated on: December 23, 2003</span></p>
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</html>
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