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<a name="Notes-for-the-C-Programmer"></a>
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Up: <a href="The-switch-Statement.html#The-switch-Statement" accesskey="u" rel="up">The switch Statement</a> &nbsp; [<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="Notes-for-the-C-Programmer-1"></a>
<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&rsquo;t &lsquo;fall through&rsquo; 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
  &hellip;
</pre></div>

<p>would produce surprising results, as would
</p>
<div class="example">
<pre class="example">switch (foo)
  case (1)
  case (2)
    doit ();
  &hellip;
</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 ();
  &hellip;
</pre></div>

</li></ul>




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