yap-6.3/Logtalk/manuals/refman/directives/mode2.html

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<h2><a class="back" title="Return to index" href="../index.html#mode2"><code>mode/2</a></code></h2>
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<h4>Description</h4>

<blockquote>
<pre>
mode(Mode, Number_of_solutions)
</pre>
<p>
	Most predicates can be used with several instantiations modes. This directive enables the specification of each instantiation mode and the corresponding number of solutions/proofs.
</p>
</blockquote>

<h4>Template and modes</h4>

<blockquote>
<pre>
mode(+predicate_mode_term, +number_of_solutions)
</pre>
</blockquote>

<h4>Examples</h4>

<blockquote>
<pre>
:- mode(append(-, -, +), zero_or_more).

:- mode(append(+list, +list, -list), zero_or_one).

:- mode(var(@term), zero_or_one).

:- mode(arg(-, -, +), error).
</pre>
</blockquote>

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<strong><a href="metapredicate1.html">Previous</a> | <a href="op3.html">Next</a> | <a href="../index.html">Table of Contents</a> | <a href="../../bibliography.html">Bibliography</a> | <a href="../../glossary.html">Glossary</a></strong>
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Last updated on: October 21, 2001
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Logtalk files git-svn-id: https://yap.svn.sf.net/svnroot/yap/trunk@55 b08c6af1-5177-4d33-ba66-4b1c6b8b522a 2001-06-06 21:07:01 +01:00			`<!doctype html public "-//W3C//DTD HTML 4.01//EN"`
			`"http://www.w3.org/TR/html4/strict.dtd">`

			`<html>`

			`<head>`
			`<title>mode/2</title>`
			`<link rel=stylesheet href="../../styles.css" type="text/css">`
			`</head>`

			`<body>`

			`<hr />`

			`<h2><a class="back" title="Return to index" href="../index.html#mode2"><code>mode/2</a></code></h2>`
			`<hr />`

			`<h4>Description</h4>`

			`<blockquote>`
			`<pre>`
			`mode(Mode, Number_of_solutions)`
			`</pre>`
			`<p>`
			`Most predicates can be used with several instantiations modes. This directive enables the specification of each instantiation mode and the corresponding number of solutions/proofs.`
			`</p>`
			`</blockquote>`

			`<h4>Template and modes</h4>`

			`<blockquote>`
			`<pre>`
			`mode(+predicate_mode_term, +number_of_solutions)`
			`</pre>`
			`</blockquote>`

			`<h4>Examples</h4>`

			`<blockquote>`
			`<pre>`
			`:- mode(append(-, -, +), zero_or_more).`

			`:- mode(append(+list, +list, -list), zero_or_one).`

			`:- mode(var(@term), zero_or_one).`

			`:- mode(arg(-, -, +), error).`
			`</pre>`
			`</blockquote>`

			`<hr />`
			`<p class="center">`
			`<strong><a href="metapredicate1.html">Previous</a> \| <a href="op3.html">Next</a> \| <a href="../index.html">Table of Contents</a> \| <a href="../../bibliography.html">Bibliography</a> \| <a href="../../glossary.html">Glossary</a></strong>`
			`</p>`
			`<p class="center">`
Updated to Logtalk 2.9.1 git-svn-id: https://yap.svn.sf.net/svnroot/yap/trunk@211 b08c6af1-5177-4d33-ba66-4b1c6b8b522a 2001-12-05 23:57:48 +00:00			`Last updated on: October 21, 2001`
Logtalk files git-svn-id: https://yap.svn.sf.net/svnroot/yap/trunk@55 b08c6af1-5177-4d33-ba66-4b1c6b8b522a 2001-06-06 21:07:01 +01:00			`</p>`

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