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<span id="Notes-for-the-C-Programmer"></span><div class="header">
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Up: <a href="The-switch-Statement.html" accesskey="u" rel="up">The switch Statement</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Concept-Index.html" title="Index" rel="index">Index</a>]</p>
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<span id="Notes-for-the-C-Programmer-1"></span><h4 class="subsection">10.2.1 Notes for the C Programmer</h4>
<p>The <code>switch</code> statement is also available in the widely used C
programming language. There are, however, some differences
between the statement in Octave and C
</p>
<ul>
<li> Cases are exclusive, so they don’t ‘fall through’ as do the cases
in the <code>switch</code> statement of the C language.
</li><li> The <var>command_list</var> elements are not optional. Making the list
optional would have meant requiring a separator between the label and
the command list. Otherwise, things like
<div class="example">
<pre class="example">switch (foo)
case (1) -2
…
</pre></div>
<p>would produce surprising results, as would
</p>
<div class="example">
<pre class="example">switch (foo)
case (1)
case (2)
doit ();
…
</pre></div>
<p>particularly for C programmers. If <code>doit()</code> should be executed if
<var>foo</var> is either <code>1</code> or <code>2</code>, the above code should be
written with a cell array like this
</p>
<div class="example">
<pre class="example">switch (foo)
case { 1, 2 }
doit ();
…
</pre></div>
</li></ul>
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