blob: bc370bdf17f7ac96c456142af14b8c9af7e701ed [file] [log] [blame]
<html lang="en">
<head>
<title>Memory Allocation - The GNU C Library</title>
<meta http-equiv="Content-Type" content="text/html">
<meta name="description" content="The GNU C Library">
<meta name="generator" content="makeinfo 4.13">
<link title="Top" rel="start" href="index.html#Top">
<link rel="up" href="Memory.html#Memory" title="Memory">
<link rel="prev" href="Memory-Concepts.html#Memory-Concepts" title="Memory Concepts">
<link rel="next" href="Locking-Pages.html#Locking-Pages" title="Locking Pages">
<link href="http://www.gnu.org/software/texinfo/" rel="generator-home" title="Texinfo Homepage">
<!--
This file documents the GNU C library.
This is Edition 0.12, last updated 2007-10-27,
of `The GNU C Library Reference Manual', for version
2.8 (Sourcery G++ Lite 2011.03-41).
Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2001, 2002,
2003, 2007, 2008, 2010 Free Software Foundation, Inc.
Permission is granted to copy, distribute and/or modify this document
under the terms of the GNU Free Documentation License, Version 1.3 or
any later version published by the Free Software Foundation; with the
Invariant Sections being ``Free Software Needs Free Documentation''
and ``GNU Lesser General Public License'', the Front-Cover texts being
``A GNU Manual'', and with the Back-Cover Texts as in (a) below. A
copy of the license is included in the section entitled "GNU Free
Documentation License".
(a) The FSF's Back-Cover Text is: ``You have the freedom to
copy and modify this GNU manual. Buying copies from the FSF
supports it in developing GNU and promoting software freedom.''-->
<meta http-equiv="Content-Style-Type" content="text/css">
<style type="text/css"><!--
pre.display { font-family:inherit }
pre.format { font-family:inherit }
pre.smalldisplay { font-family:inherit; font-size:smaller }
pre.smallformat { font-family:inherit; font-size:smaller }
pre.smallexample { font-size:smaller }
pre.smalllisp { font-size:smaller }
span.sc { font-variant:small-caps }
span.roman { font-family:serif; font-weight:normal; }
span.sansserif { font-family:sans-serif; font-weight:normal; }
--></style>
<link rel="stylesheet" type="text/css" href="../cs.css">
</head>
<body>
<div class="node">
<a name="Memory-Allocation"></a>
<p>
Next:&nbsp;<a rel="next" accesskey="n" href="Locking-Pages.html#Locking-Pages">Locking Pages</a>,
Previous:&nbsp;<a rel="previous" accesskey="p" href="Memory-Concepts.html#Memory-Concepts">Memory Concepts</a>,
Up:&nbsp;<a rel="up" accesskey="u" href="Memory.html#Memory">Memory</a>
<hr>
</div>
<h3 class="section">3.2 Allocating Storage For Program Data</h3>
<p>This section covers how ordinary programs manage storage for their data,
including the famous <code>malloc</code> function and some fancier facilities
special the GNU C library and GNU Compiler.
<ul class="menu">
<li><a accesskey="1" href="Memory-Allocation-and-C.html#Memory-Allocation-and-C">Memory Allocation and C</a>: How to get different kinds of allocation in C.
<li><a accesskey="2" href="Unconstrained-Allocation.html#Unconstrained-Allocation">Unconstrained Allocation</a>: The <code>malloc</code> facility allows fully general
dynamic allocation.
<li><a accesskey="3" href="Allocation-Debugging.html#Allocation-Debugging">Allocation Debugging</a>: Finding memory leaks and not freed memory.
<li><a accesskey="4" href="Obstacks.html#Obstacks">Obstacks</a>: Obstacks are less general than malloc
but more efficient and convenient.
<li><a accesskey="5" href="Variable-Size-Automatic.html#Variable-Size-Automatic">Variable Size Automatic</a>: Allocation of variable-sized blocks
of automatic storage that are freed when the
calling function returns.
</ul>
</body></html>