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			68 lines
		
	
	
		
			2.6 KiB
		
	
	
	
		
			HTML
		
	
	
	
	
	
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| 	<title>Logtalk built-in predicate: create_protocol/3</title>
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| <div class="top-left">Logtalk reference manual</div> 
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| <div class="top-right">Built-in predicate: create_protocol/3</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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| 
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| <h2 class="code">create_protocol/3</h2>
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| 
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| 
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| <h4>Description</h4>
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| 
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| <pre>create_protocol(Identifier, Relations, Directives)</pre>
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| <p>
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| Creates a new, dynamic, protocol.
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| </p>
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| 
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| <h4>Template and modes</h4>
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| 
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| <pre>create_protocol(+protocol_identifier, +list, +list)</pre>
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| 
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| <h4>Errors</h4>
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| 
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| <dl class="errors">
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| 	<dt>One of the predicate arguments is a variable:</dt>
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| 		<dd><code>instantiation_error</code></dd>
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| 	<dt>Identifier is not a valid protocol identifier:</dt>
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| 		<dd><code>type_error(protocol_identifier, Identifier)</code></dd>
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| 	<dt>Identifier is already in use:</dt>
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| 		<dd><code>permission_error(replace, category, Identifier)</code></dd>
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| 		<dd><code>permission_error(replace, object, Identifier)</code></dd>
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| 		<dd><code>permission_error(replace, protocol, Identifier)</code></dd>
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| 	<dt>Relations is neither a variable nor a proper list:</dt>
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| 		<dd><code>type_error(list, Relations)</code></dd>
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| 	<dt>Directives is neither a variable nor a proper list:</dt>
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| 		<dd><code>type_error(list, Directives)</code></dd>
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| </dl>
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| 
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| <h4>Examples</h4>
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| 
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| <pre>| ?- create_protocol(foo, [extends(bar)], [public(foo/1)]).</pre>
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| 
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| 		<span class="date">Last updated on: January 21, 2006</span>
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