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<a name="Notes-for-the-C-programmer"></a>
Up: <a rel="up" accesskey="u" href="The-_003ccode_003eswitch_003c_002fcode_003e-Statement.html#The-_003ccode_003eswitch_003c_002fcode_003e-Statement">The <code>switch</code> Statement</a>
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<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
<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>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
<pre class="example"> switch (foo)
case (1) -2
...
</pre>
<p class="noindent">would produce surprising results, as would
<pre class="example"> switch (foo)
case (1)
case (2)
doit ();
...
</pre>
<p class="noindent">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
<pre class="example"> switch (foo)
case { 1, 2 }
doit ();
...
</pre>
</ul>
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