<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html xmlns:fn="http://www.w3.org/2005/02/xpath-functions"> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <link rel="stylesheet" href="../otp_doc.css" type="text/css"> <title>Erlang -- Programming Examples</title> </head> <body bgcolor="white" text="#000000" link="#0000ff" vlink="#ff00ff" alink="#ff0000"><div id="container"> <script id="js" type="text/javascript" language="JavaScript" src="../js/flipmenu/flipmenu.js"></script><script id="js2" type="text/javascript" src="../js/erlresolvelinks.js"></script><script language="JavaScript" type="text/javascript"> <!-- function getWinHeight() { var myHeight = 0; if( typeof( window.innerHeight ) == 'number' ) { //Non-IE myHeight = window.innerHeight; } else if( document.documentElement && ( document.documentElement.clientWidth || document.documentElement.clientHeight ) ) { //IE 6+ in 'standards compliant mode' myHeight = document.documentElement.clientHeight; } else if( document.body && ( document.body.clientWidth || document.body.clientHeight ) ) { //IE 4 compatible myHeight = document.body.clientHeight; } return myHeight; } function setscrollpos() { var objf=document.getElementById('loadscrollpos'); document.getElementById("leftnav").scrollTop = objf.offsetTop - getWinHeight()/2; } function addEvent(obj, evType, fn){ if (obj.addEventListener){ obj.addEventListener(evType, fn, true); return true; } else if (obj.attachEvent){ var r = obj.attachEvent("on"+evType, fn); return r; } else { return false; } } addEvent(window, 'load', setscrollpos); //--></script><div id="leftnav"><div class="innertube"> <img alt="Erlang logo" src="../erlang-logo.png"><br><small><a href="users_guide.html">User's Guide</a><br><a href="../pdf/otp-system-documentation-5.9.3.1.pdf">PDF</a><br><a href="../index.html">Top</a></small><p><strong>Programming Examples</strong><br><strong>User's Guide</strong><br><small>Version 5.9.3.1</small></p> <br><a href="javascript:openAllFlips()">Expand All</a><br><a href="javascript:closeAllFlips()">Contract All</a><p><small><strong>Chapters</strong></small></p> <ul class="flipMenu" imagepath="../js/flipmenu"> <li id="no" title="Records" expanded="false">Records<ul> <li><a href="records.html"> Top of chapter </a></li> <li title="Records vs Tuples"><a href="records.html#id60765">Records vs Tuples</a></li> <li title="Defining a Record"><a href="records.html#id60728">Defining a Record</a></li> <li title="Creating a Record"><a href="records.html#id59920">Creating a Record</a></li> <li title="Accessing a Record Field"><a href="records.html#id60048">Accessing a Record Field</a></li> <li title="Updating a Record"><a href="records.html#id61983">Updating a Record</a></li> <li title="Type Testing"><a href="records.html#id60031">Type Testing</a></li> <li title="Pattern Matching"><a href="records.html#id60080">Pattern Matching</a></li> <li title="Nested Records"><a href="records.html#id61405">Nested Records</a></li> <li title="Example"><a href="records.html#id57989">Example</a></li> </ul> </li> <li id="no" title="Funs" expanded="false">Funs<ul> <li><a href="funs.html"> Top of chapter </a></li> <li title="Example 1 - map"><a href="funs.html#id64362">Example 1 - map</a></li> <li title="Example 2 - foreach"><a href="funs.html#id57513">Example 2 - foreach</a></li> <li title="The Syntax of Funs"><a href="funs.html#id61441">The Syntax of Funs</a></li> <li title="Variable Bindings Within a Fun"><a href="funs.html#id61096">Variable Bindings Within a Fun</a></li> <li title="Funs and the Module Lists"><a href="funs.html#id61883">Funs and the Module Lists</a></li> <li title="Funs Which Return Funs"><a href="funs.html#id62549">Funs Which Return Funs</a></li> </ul> </li> <li id="no" title="List Comprehensions" expanded="false">List Comprehensions<ul> <li><a href="list_comprehensions.html"> Top of chapter </a></li> <li title="Simple Examples"><a href="list_comprehensions.html#id63964">Simple Examples</a></li> <li title="Quick Sort"><a href="list_comprehensions.html#id64034">Quick Sort</a></li> <li title="Permutations"><a href="list_comprehensions.html#id64089">Permutations</a></li> <li title="Pythagorean Triplets"><a href="list_comprehensions.html#id64141">Pythagorean Triplets</a></li> <li title="Simplifications with List Comprehensions"><a href="list_comprehensions.html#id64218">Simplifications with List Comprehensions</a></li> <li title="Variable Bindings in List Comprehensions"><a href="list_comprehensions.html#id64241">Variable Bindings in List Comprehensions</a></li> </ul> </li> <li id="no" title="Bit Syntax" expanded="false">Bit Syntax<ul> <li><a href="bit_syntax.html"> Top of chapter </a></li> <li title="Introduction"><a href="bit_syntax.html#id64741">Introduction</a></li> <li title="A Lexical Note"><a href="bit_syntax.html#id65026">A Lexical Note</a></li> <li title="Segments"><a href="bit_syntax.html#id65049">Segments</a></li> <li title="Defaults"><a href="bit_syntax.html#id65237">Defaults</a></li> <li title="Constructing Binaries and Bitstrings"><a href="bit_syntax.html#id65297">Constructing Binaries and Bitstrings</a></li> <li title="Matching Binaries"><a href="bit_syntax.html#id65485">Matching Binaries</a></li> <li title="Appending to a Binary"><a href="bit_syntax.html#id65619">Appending to a Binary</a></li> </ul> </li> </ul> </div></div> <div id="content"> <div class="innertube"> <div class="frontpage"></div> <center><h1>Programming Examples User's Guide</h1></center> <center><h4>Version 5.9.3.1</h4></center> <center><h4>December 6 2012</h4></center> </div> <div class="footer"> <hr> <p>Copyright © 2003-2012 Ericsson AB. 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