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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html>
<head>
<title>Arduino - Cast </title>
<link rel='stylesheet' href='arduino.css' type='text/css' />
</head>
<body>
<div id="page">
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<div class="title"><a href="http://www.arduino.cc"/>Arduino</a></div>
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<p><a class='wikilink' href='http://www.arduino.cc/en/Main/Buy'>Buy</a>
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<p><strong>Reference</strong> &nbsp; <a class='wikilink' href='index.html'>Language</a> (<a class='wikilink' href='Extended.html'>extended</a>) | <a class='wikilink' href='Libraries.html'>Libraries</a> | <a class='wikilink' href='Comparison.html'>Comparison</a> | <a class='wikilink' href='Board.html'>Board</a>
</p>
<p class='vspace'></p><h2>Cast</h2>
<h4>Description</h4>
<p>The cast operator translates one variable type into another and forces calculations to be performed in the cast type.
</p>
<p class='vspace'></p><h4>Syntax</h4>
<p>(type)variable
</p>
<p class='vspace'></p><h4>Parameters:</h4>
<p>type: any variable type (e.g. int, float, byte)
</p>
<p class='vspace'></p><p>variable: any variable or constant
</p>
<p class='vspace'></p><h4>Example</h4>
<pre>
int i;
float f;
f = 3.6;
i = (int) f; // now i is 3
</pre>
<p class='vspace'></p><h4>Note</h4>
<p>When casting from a float to an int, the value is truncated not rounded. So both <code>(int) 3.2</code> and <code>(int) 3.7</code> are 3.
</p>
<p class='vspace'></p><p><a class='wikilink' href='index.html'>Reference Home</a>
</p>
<p class='vspace'></p><p><em>Corrections, suggestions, and new documentation should be posted to the <a class='urllink' href='http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?board=swbugs' rel='nofollow'>Forum</a>.</em>
</p>
<p class='vspace'></p><p>The text of the Arduino reference is licensed under a
<a class='urllink' href='http://creativecommons.org/licenses/by-sa/3.0/' rel='nofollow'>Creative Commons Attribution-ShareAlike 3.0 License</a>. Code samples in the reference are released into the public domain.
</p>
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