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<a name="Subfunctions"></a>
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Next: <a href="Private-Functions.html#Private-Functions" accesskey="n" rel="next">Private Functions</a>, Previous: <a href="Manipulating-the-Load-Path.html#Manipulating-the-Load-Path" accesskey="p" rel="prev">Manipulating the Load Path</a>, Up: <a href="Function-Files.html#Function-Files" accesskey="u" rel="up">Function Files</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>
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<a name="Subfunctions-1"></a>
<h4 class="subsection">11.9.2 Subfunctions</h4>
<p>A function file may contain secondary functions called
<em>subfunctions</em>. These secondary functions are only visible to the
other functions in the same function file. For example, a file
<samp>f.m</samp> containing
</p>
<div class="example">
<pre class="example">function f ()
printf ("in f, calling g\n");
g ()
endfunction
function g ()
printf ("in g, calling h\n");
h ()
endfunction
function h ()
printf ("in h\n")
endfunction
</pre></div>
<p>defines a main function <code>f</code> and two subfunctions. The
subfunctions <code>g</code> and <code>h</code> may only be called from the main
function <code>f</code> or from the other subfunctions, but not from outside
the file <samp>f.m</samp>.
</p>
<a name="XREFlocalfunctions"></a><dl>
<dt><a name="index-localfunctions"></a><em></em> <strong>localfunctions</strong> <em>()</em></dt>
<dd><p>Return a list of all local functions, i.e., subfunctions, within the current
file.
</p>
<p>The return value is a column cell array of function handles to all local
functions accessible from the function from which <code>localfunctions</code> is
called. Nested functions are <em>not</em> included in the list.
</p>
<p>If the call is from the command line, an anonymous function, or a script,
the return value is an empty cell array.
</p>
<p><strong>See also:</strong> <a href="Function-Handles.html#XREFfunctions">functions</a>.
</p></dd></dl>
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