<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<!-- Created by GNU Texinfo 6.5, http://www.gnu.org/software/texinfo/ -->
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>Mex-Files (GNU Octave (version 5.1.0))</title>
<meta name="description" content="Mex-Files (GNU Octave (version 5.1.0))">
<meta name="keywords" content="Mex-Files (GNU Octave (version 5.1.0))">
<meta name="resource-type" content="document">
<meta name="distribution" content="global">
<meta name="Generator" content="makeinfo">
<link href="index.html#Top" rel="start" title="Top">
<link href="Concept-Index.html#Concept-Index" rel="index" title="Concept Index">
<link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">
<link href="External-Code-Interface.html#External-Code-Interface" rel="up" title="External Code Interface">
<link href="Getting-Started-with-Mex_002dFiles.html#Getting-Started-with-Mex_002dFiles" rel="next" title="Getting Started with Mex-Files">
<link href="Documentation-and-Testing-of-Oct_002dFiles.html#Documentation-and-Testing-of-Oct_002dFiles" rel="prev" title="Documentation and Testing of Oct-Files">
<style type="text/css">
<!--
a.summary-letter {text-decoration: none}
blockquote.indentedblock {margin-right: 0em}
blockquote.smallindentedblock {margin-right: 0em; font-size: smaller}
blockquote.smallquotation {font-size: smaller}
div.display {margin-left: 3.2em}
div.example {margin-left: 3.2em}
div.lisp {margin-left: 3.2em}
div.smalldisplay {margin-left: 3.2em}
div.smallexample {margin-left: 3.2em}
div.smalllisp {margin-left: 3.2em}
kbd {font-style: oblique}
pre.display {font-family: inherit}
pre.format {font-family: inherit}
pre.menu-comment {font-family: serif}
pre.menu-preformatted {font-family: serif}
pre.smalldisplay {font-family: inherit; font-size: smaller}
pre.smallexample {font-size: smaller}
pre.smallformat {font-family: inherit; font-size: smaller}
pre.smalllisp {font-size: smaller}
span.nolinebreak {white-space: nowrap}
span.roman {font-family: initial; font-weight: normal}
span.sansserif {font-family: sans-serif; font-weight: normal}
ul.no-bullet {list-style: none}
-->
</style>
<link rel="stylesheet" type="text/css" href="octave.css">
</head>
<body lang="en">
<a name="Mex_002dFiles"></a>
<div class="header">
<p>
Next: <a href="Standalone-Programs.html#Standalone-Programs" accesskey="n" rel="next">Standalone Programs</a>, Previous: <a href="Oct_002dFiles.html#Oct_002dFiles" accesskey="p" rel="prev">Oct-Files</a>, Up: <a href="External-Code-Interface.html#External-Code-Interface" accesskey="u" rel="up">External Code Interface</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Concept-Index.html#Concept-Index" title="Index" rel="index">Index</a>]</p>
</div>
<hr>
<a name="Mex_002dFiles-1"></a>
<h3 class="section">A.2 Mex-Files</h3>
<a name="index-mex_002dfiles"></a>
<a name="index-mex"></a>
<p>Octave includes an interface to allow legacy mex-files to be compiled and used
with Octave. This interface can also be used to share compiled code between
Octave and <small>MATLAB</small> users. However, as mex-files expose <small>MATLAB</small>’s
internal API, and the internal structure of Octave is different, a mex-file can
never have the same performance in Octave as the equivalent oct-file. In
particular, to support the manner in which variables are passed to mex
functions there are a significant number of additional copies of memory blocks
when invoking or returning from a mex-file function. For this reason, it is
recommended that any new code be written with the oct-file interface previously
discussed.
</p>
<table class="menu" border="0" cellspacing="0">
<tr><td align="left" valign="top">• <a href="Getting-Started-with-Mex_002dFiles.html#Getting-Started-with-Mex_002dFiles" accesskey="1">Getting Started with Mex-Files</a>:</td><td> </td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top">• <a href="Working-with-Matrices-and-Arrays-in-Mex_002dFiles.html#Working-with-Matrices-and-Arrays-in-Mex_002dFiles" accesskey="2">Working with Matrices and Arrays in Mex-Files</a>:</td><td> </td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top">• <a href="Character-Strings-in-Mex_002dFiles.html#Character-Strings-in-Mex_002dFiles" accesskey="3">Character Strings in Mex-Files</a>:</td><td> </td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top">• <a href="Cell-Arrays-with-Mex_002dFiles.html#Cell-Arrays-with-Mex_002dFiles" accesskey="4">Cell Arrays with Mex-Files</a>:</td><td> </td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top">• <a href="Structures-with-Mex_002dFiles.html#Structures-with-Mex_002dFiles" accesskey="5">Structures with Mex-Files</a>:</td><td> </td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top">• <a href="Sparse-Matrices-with-Mex_002dFiles.html#Sparse-Matrices-with-Mex_002dFiles" accesskey="6">Sparse Matrices with Mex-Files</a>:</td><td> </td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top">• <a href="Calling-Other-Functions-in-Mex_002dFiles.html#Calling-Other-Functions-in-Mex_002dFiles" accesskey="7">Calling Other Functions in Mex-Files</a>:</td><td> </td><td align="left" valign="top">
</td></tr>
</table>
</body>
</html>
distrib
>
Mageia
>
7
>
armv7hl
>
media
>
core-updates
>
by-pkgid
>
641ebb3060c35990cc021d8f7aaf9aca
>
files
>
361
