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17<title>Debugging with GDB: C Checks</title>
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64<a name="C-Checks"></a>
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67Next: <a href="Debugging-C.html#Debugging-C" accesskey="n" rel="next">Debugging C</a>, Previous: <a href="C-Defaults.html#C-Defaults" accesskey="p" rel="previous">C Defaults</a>, Up: <a href="C.html#C" accesskey="u" rel="up">C</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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70<a name="C-and-C_002b_002b-Type-and-Range-Checks"></a>
71<h4 class="subsubsection">15.4.1.5 C and C<tt>++</tt> Type and Range Checks</h4>
72
73<a name="index-C-and-C_002b_002b-checks"></a>
74
75<p>By default, when <small>GDB</small> parses C or C<tt>++</tt> expressions, strict type
76checking is used.  However, if you turn type checking off, <small>GDB</small>
77will allow certain non-standard conversions, such as promoting integer
78constants to pointers.
79</p>
80<p>Range checking, if turned on, is done on mathematical operations.  Array
81indices are not checked, since they are often used to index a pointer
82that is not itself an array.
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