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<h3 class="section" id="Mex_002dFiles-1"><span>A.2 Mex-Files<a class="copiable-link" href="#Mex_002dFiles-1"> ¶</a></span></h3>
<a class="index-entry-id" id="index-mex_002dfiles"></a>
<a class="index-entry-id" id="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 class="sc">MATLAB</small> users. However, as mex-files expose <small class="sc">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.
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<ul class="mini-toc">
<li><a href="Getting-Started-with-Mex_002dFiles.html" accesskey="1">Getting Started with Mex-Files</a></li>
<li><a href="Working-with-Matrices-and-Arrays-in-Mex_002dFiles.html" accesskey="2">Working with Matrices and Arrays in Mex-Files</a></li>
<li><a href="Character-Strings-in-Mex_002dFiles.html" accesskey="3">Character Strings in Mex-Files</a></li>
<li><a href="Cell-Arrays-with-Mex_002dFiles.html" accesskey="4">Cell Arrays with Mex-Files</a></li>
<li><a href="Structures-with-Mex_002dFiles.html" accesskey="5">Structures with Mex-Files</a></li>
<li><a href="Sparse-Matrices-with-Mex_002dFiles.html" accesskey="6">Sparse Matrices with Mex-Files</a></li>
<li><a href="Calling-Other-Functions-in-Mex_002dFiles.html" accesskey="7">Calling Other Functions in Mex-Files</a></li>
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