1<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
2<html>
3
4<head>
5<META http-equiv="Content-Type" content="text/html; charset=windows-1252">
6<META name="GENERATOR" content="Microsoft FrontPage 5.0">
7<META http-equiv="Content-Style-Type" content="text/css">
8<LINK rel="stylesheet" type="text/css" href="../../CSS/revolution.css">
9<title>OSAlloc</title>
10</head>
11
12<body>
13
14<h1>OSAlloc</h1>
15
16
17<h2>C Specification</h2>
18
19<dl>
20<dd><pre><code>#include &lt;revolution/os.h&gt;</code></pre>
21  </dd>
22<dd><pre><code>void* OSAlloc (u32 size);</code></pre>
23  </dd>
24</dl>
25
26<h2>Arguments</h2>
27<TABLE border="1" cellpadding="3" cellspacing="0.1">
28  <tr>
29<TD width="120" bgcolor="#ffffe8"><em><strong><code><STRONG><EM><CODE>size</CODE></EM></STRONG></code></strong></em></TD>
30<TD width="520">Size of object to allocate.</TD>
31    </tr>
32</TABLE>
33<h2>Return Values</h2>
34
35<p>Returns a null pointer if allocation is unsuccessful. Returns a pointer to the allocated region aligned to a 32-byte boundary if allocation is successful.
36</p>
37<H2>Description</H2>
38<P>Although this function is provided for compatibility's sake, we recommend using the MEM library.  </P>
39<P>Allocates <strong><code><em>size</em></code></strong> bytes from the current heap.</P>
40<P>You must use the <code><a href="OSInitAlloc.html">OSInitAlloc</a></code> and <CODE><A href="OSCreateHeap.html">OSCreateHeap</A></CODE> functions first to initialize the memory allocation feature and the <code><a href="OSCreateHeap.html">OSCreateHeap</a></code> function to create a heap. </P>
41
42
43
44<h2>See Also</h2>
45
46<p><a href="../list.html#Memory Allocation" target="contents">Memory Allocation Functions</a>, <code><a href="OSInitAlloc.html">OSInitAlloc</a>,<a href="OSCreateHeap.html">OSCreateHeap</a>,<a href="OSAllocFromHeap.html">OSAllocFromHeap</a></code>, <code><a href="OSFree.html">OSFree</a></code>, <a href="OSSetCurrentHeap.html"><code>OSSetCurrentHeap</code></a></p>
47<H2>Revision History</H2>
48<P>03/01/2006 Initial version.</P>
49</body>
50</html>