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<h4 class="subsection" id="Subfunctions-1"><span>11.10.2 Subfunctions<a class="copiable-link" href="#Subfunctions-1"> ¶</a></span></h4>
<p>A function file may contain secondary functions called
<em class="dfn">subfunctions</em>. These secondary functions are only visible to the
other functions in the same function file. For example, a file
<samp class="file">f.m</samp> containing
</p>
<div class="example">
<div class="group"><pre class="example-preformatted">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></div>
<p>defines a main function <code class="code">f</code> and two subfunctions. The
subfunctions <code class="code">g</code> and <code class="code">h</code> may only be called from the main
function <code class="code">f</code> or from the other subfunctions, but not from outside
the file <samp class="file">f.m</samp>.
</p>
<a class="anchor" id="XREFlocalfunctions"></a><span style="display:block; margin-top:-4.5ex;"> </span>
<dl class="first-deftypefn">
<dt class="deftypefn" id="index-localfunctions"><span><code class="def-type"><var class="var">subfcn_list</var> =</code> <strong class="def-name">localfunctions</strong> <code class="def-code-arguments">()</code><a class="copiable-link" href="#index-localfunctions"> ¶</a></span></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 class="code">localfunctions</code> is
called. Nested functions are <em class="emph">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 class="strong">See also:</strong> <a class="ref" href="Function-Handles.html#XREFfunctions">functions</a>.
</p></dd></dl>
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