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authorTobias Klauser <tklauser@distanz.ch>2008-01-27 11:37:44 +0100
committerTobias Klauser <tklauser@xenon.tklauser.home>2008-01-27 11:37:44 +0100
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+<head>
+<title>cast</title>
+</head>
+<body bgcolor="#ffffcc">
+<hr>
+<center>
+<h1>To cast, casting</h1>
+</center>
+<hr>
+
+If you want to change the
+<a href="../CONCEPT/data_types.html">datatype</a> of a variable
+you have to use a technic called <b>cast</b>. For example if want to
+change an <a href="../CONCEPT/data_types.html#int">int</a> to a
+<a href="../CONCEPT/data_types.html#float">float</a>
+you could use the following syntax:
+<p>
+<center>
+<table border=1 width="80%" bgcolor="ivory">
+<tr>
+<td>
+<pre>
+
+ main()
+ {
+ int var1;
+ float var2;
+
+ var2 = (float)var1;
+ }
+</pre>
+</td>
+</tr>
+</table>
+</center>
+<p>
+As it happens this example would never be used in practice because C
+would perform the conversion automatically.
+
+What this example does show is the cast operator<b> () </b>. This states,
+the result of the expression (in this case <b>var1</b>) is to be a
+data type of <a href="../CONCEPT/data_types.html#float">float</a>.
+<p>
+<hr>
+<h2>See Also:</h2>
+
+<a href=../../CPLUSPLUS/CONCEPT/cast.html> C++ changes to cast.</a>
+<p>
+<hr>
+<p>
+<center>
+<table border=2 width=80% bgcolor=ivory>
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+<td width=25%>
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+<p>
+
+<hr>
+<address>Martin Leslie
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