<?xml version="1.0" encoding="iso-8859-1"?> <?xml-stylesheet type="text/css" href="../../styles.css" ?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=iso-8859-1" /> <title>Logtalk built-in method: abolish/1</title> <link rel="stylesheet" href="../../styles.css" type="text/css" /> </head> <body> <div class="navtop"> <a href="../../index.html">contents</a> > <a href="../index.html">reference manual</a> > <a href="../index.html#methods">built-in methods</a> </div> <h2><code>abolish/1</code></h2> <h4>Description</h4> <blockquote> <pre>abolish(Predicate) abolish(Functor/Arity)</pre> <p> Removes a runtime declared dynamic predicate from an object database. </p> </blockquote> <h4>Template and modes</h4> <blockquote> <pre>abolish(+predicate_indicator)</pre> </blockquote> <h4>Errors</h4> <blockquote> <dl> <dt>Predicate is a variable:</dt> <dd><code>instantiation_error</code></dd> <dt>Predicate is neither a variable nor a valid predicate indicator:</dt> <dd><code>type_error(predicate_indicator, Predicate)</code></dd> <dt>Functor is neither a variable nor an atom:</dt> <dd><code>type_error(atom, Functor)</code></dd> <dt>Arity is neither a variable nor an integer:</dt> <dd><code>type_error(integer, Arity)</code></dd> <dt>Predicate is statically declared:</dt> <dd><code>permission_error(modify, predicate_declaration, Functor/Arity)</code></dd> <dt>Predicate is a private predicate:</dt> <dd><code>permission_error(modify, private_predicate, Functor/Arity)</code></dd> <dt>Predicate is a protected predicate:</dt> <dd><code>permission_error(modify, protected_predicate, Functor/Arity)</code></dd> <dt>Predicate is a static predicate:</dt> <dd><code>permission_error(modify, static_predicate, Functor/Arity)</code></dd> <dt>Predicate is not declared or is declared but not in the object receiving the message:</dt> <dd><code>existence_error(predicate_declaration, Functor/Arity)</code></dd> </dl> </blockquote> <h4>Examples</h4> <blockquote> <dl> <dt>To abolish any dynamic predicate in <a class="glossary" title="Go to glossary definition" href="../../glossary.html#this">this</a>:</dt> <dd><code>abolish(Predicate)</code></dd> <dt>To abolish a public or protected dynamic predicate in <a class="glossary" title="Go to glossary definition" href="../../glossary.html#self">self</a>:</dt> <dd><code>::abolish(Predicate)</code></dd> <dt>To abolish a public dynamic predicate in an object:</dt> <dd><code>Object::abolish(Predicate)</code></dd> </dl> </blockquote> <div class="navbottom"> <a href="predicate_property2.html">previous</a> | <a href="../../glossary.html">glossary</a> | <a href="asserta1.html">next</a> </div> <div class="copyright"> Copyright © <a href="mailto:pmoura@logtalk.org">Paulo Moura</a> — <a href="http://www.logtalk.org">Logtalk.org</a> </div> <div class="footer"> <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> </div> </body> </html>