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2005-12-24 18:00:21 +00:00
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2001-06-06 20:07:01 +00:00
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2005-12-24 18:00:21 +00:00
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<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en">
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2001-06-06 20:07:01 +00:00
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<head>
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2006-02-10 17:44:05 +00:00
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<meta http-equiv="content-type" content="application/xml+xhtml; charset=utf-8" />
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2005-12-24 18:00:21 +00:00
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<title>Logtalk entity directive: object/1-5</title>
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<link rel="stylesheet" href="../../screen.css" type="text/css" media="screen"/>
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<link rel="stylesheet" href="../../print.css" type="text/css" media="print"/>
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2001-06-06 20:07:01 +00:00
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</head>
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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">Entity directive: object/1-5</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#directives">directives</a></div>
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2003-12-30 13:33:51 +00:00
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2005-12-24 18:00:21 +00:00
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<h2 class="code">object/1-5</h2>
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<h4>Description</h4>
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<p>
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<em>Stand-alone objects</em>
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2001-06-06 20:07:01 +00:00
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</p>
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<pre>object(Object)
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object(Object,
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implements(Protocols))
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object(Object,
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imports(Categories))
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object(Object,
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implements(Protocols),
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imports(Categories))</pre>
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<p>
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<em>Prototypes</em>
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</p>
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<pre>object(Object,
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extends(Objects))
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object(Object,
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implements(Protocols),
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extends(Objects))
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object(Object,
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imports(Categories),
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extends(Objects))
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object(Object,
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implements(Protocols),
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imports(Categories),
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extends(Objects))</pre>
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<p>
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<em>Instances</em>
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</p>
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<pre>object(Object,
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instantiates(Classes))
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object(Object,
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implements(Protocols),
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instantiates(Classes))
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object(Object,
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imports(Categories),
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instantiates(Classes))
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object(Object,
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implements(Protocols),
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imports(Categories),
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instantiates(Classes))</pre>
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<p>
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<em>Classes</em>
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</p>
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<pre>object(Object,
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specializes(Classes))
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object(Object,
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implements(Protocols),
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specializes(Classes))
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object(Object,
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imports(Categories),
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specializes(Classes))
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object(Object,
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implements(Protocols),
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imports(Categories),
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specializes(Classes))</pre>
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<p>
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<em>Metaclasses</em>
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</p>
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<pre>object(Object,
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instantiates(Classes),
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specializes(Classes))
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object(Object,
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implements(Protocols),
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instantiates(Classes),
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specializes(Classes))
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object(Object,
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imports(Categories),
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instantiates(Classes),
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specializes(Classes))
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object(Object,
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implements(Protocols),
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imports(Categories),
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instantiates(Classes),
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specializes(Classes))</pre>
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<p>
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Starting object directive.
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</p>
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<h4>Template and modes</h4>
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<p>
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<em>Stand-alone objects</em>
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</p>
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<pre>object(+object_identifier)
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object(+object_identifier,
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implements(+implemented_protocols))
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object(+object_identifier,
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imports(+imported_categories))
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object(+object_identifier,
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implements(+implemented_protocols),
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imports(+imported_categories))</pre>
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<p>
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<em>Prototypes</em>
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</p>
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<pre>object(+object_identifier,
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extends(+extended_objects))
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object(+object_identifier,
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implements(+implemented_protocols),
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extends(+extended_objects))
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object(+object_identifier,
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imports(+imported_categories),
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extends(+extended_objects))
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object(+object_identifier,
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implements(+implemented_protocols),
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imports(+imported_categories),
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extends(+extended_objects))</pre>
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<p>
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<em>Instances</em>
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</p>
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<pre>object(+object_identifier,
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instantiates(+instantiated_objects))
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object(+object_identifier,
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implements(+implemented_protocols),
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instantiates(+instantiated_objects))
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object(+object_identifier,
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imports(+imported_categories),
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instantiates(+instantiated_objects))
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object(+object_identifier,
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implements(+implemented_protocols),
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imports(+imported_categories),
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instantiates(+instantiated_objects))</pre>
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<p>
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<em>Classes</em>
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</p>
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<pre>object(+object_identifier,
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specializes(+specialized_objects))
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object(+object_identifier,
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implements(+implemented_protocols),
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specializes(+specialized_objects))
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object(+object_identifier,
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imports(+imported_categories),
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specializes(+specialized_objects))
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object(+object_identifier,
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implements(+implemented_protocols),
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imports(+imported_categories),
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specializes(+specialized_objects))</pre>
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2001-06-06 20:07:01 +00:00
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<p>
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<em>Metaclasses</em>
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</p>
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<pre>object(+object_identifier,
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instantiates(+instantiated_objects),
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specializes(+specialized_objects))
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object(+object_identifier,
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implements(+implemented_protocols),
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instantiates(+instantiated_objects),
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specializes(+specialized_objects))
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object(+object_identifier,
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imports(+imported_categories),
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instantiates(+instantiated_objects),
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specializes(+specialized_objects))
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object(+object_identifier,
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implements(+implemented_protocols),
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imports(+imported_categories),
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instantiates(+instantiated_objects),
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specializes(+specialized_objects))</pre>
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<h4>Examples</h4>
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<pre>:- object(list).
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:- object(list,
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implements(listp)).
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:- object(list,
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extends(compound)).
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:- object(list,
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implements(listp),
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extends(compound)).
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:- object(object,
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imports(initialization),
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instantiates(class)).
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:- object(abstract_class,
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instantiates(class),
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specializes(object)).
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:- object(agent,
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imports(private::attributes)).</pre>
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2003-12-30 13:33:51 +00:00
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<div class="footer">
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2005-12-24 18:00:21 +00:00
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<div class="navbottom"><a href="initialization1.html">previous</a> | <a href="../../glossary.html">glossary</a> | <a href="protocol1_2.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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<div class="footnote">
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<span class="validators"><a href="http://validator.w3.org/check/referer">XHTML</a> + <a href="http://jigsaw.w3.org/css-validator/check/referer">CSS</a></span>
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<span class="date">Last updated on: November 16, 2005</span>
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</div>
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</div>
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2005-12-24 18:00:21 +00:00
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2003-12-30 13:33:51 +00:00
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</body>
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2001-06-06 20:07:01 +00:00
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</html>
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