b77427df89
git-svn-id: https://yap.svn.sf.net/svnroot/yap/trunk@211 b08c6af1-5177-4d33-ba66-4b1c6b8b522a
64 lines
1.3 KiB
HTML
64 lines
1.3 KiB
HTML
<!doctype html public "-//W3C//DTD HTML 4.01//EN"
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"http://www.w3.org/TR/html4/strict.dtd">
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<html>
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<head>
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<title>mode/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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<hr />
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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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<hr />
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<h4>Description</h4>
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<blockquote>
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<pre>
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mode(Mode, Number_of_solutions)
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</pre>
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<p>
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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.
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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>
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mode(+predicate_mode_term, +number_of_solutions)
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</pre>
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</blockquote>
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<h4>Examples</h4>
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<blockquote>
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<pre>
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:- mode(append(-, -, +), zero_or_more).
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:- mode(append(+list, +list, -list), zero_or_one).
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:- mode(var(@term), zero_or_one).
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:- mode(arg(-, -, +), error).
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</pre>
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</blockquote>
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<hr />
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<p class="center">
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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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</p>
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<p class="center">
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Last updated on: October 21, 2001
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</p>
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<hr />
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</body>
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</html>
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