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<a name="C-and-C_002b_002b-Defaults"></a>
<h4 class="subsubsection">15.4.1.4 C and C<tt>++</tt> Defaults</h4>

<a name="index-C-and-C_002b_002b-defaults"></a>

<p>If you allow <small>GDB</small> to set range checking automatically, it
defaults to <code>off</code> whenever the working language changes to
C or C<tt>++</tt>.  This happens regardless of whether you or <small>GDB</small>
selects the working language.
</p>
<p>If you allow <small>GDB</small> to set the language automatically, it
recognizes source files whose names end with <samp>.c</samp>, <samp>.C</samp>, or
<samp>.cc</samp>, etc, and when <small>GDB</small> enters code compiled from one of
these files, it sets the working language to C or C<tt>++</tt>.
See <a href="Automatically.html#Automatically">Having <small>GDB</small> Infer the Source Language</a>,
for further details.
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