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<H2>bad_cast</H2>
<P><B>Library:</B>&nbsp;&nbsp;<A HREF="2-2.html">Language support</A></P>

<PRE><HR><B><I>bad_cast</I></B> <IMG SRC="images/inherits.gif"> <B><I><A HREF="exception.html">exception</A></I></B><HR></PRE>

<UL>
<LI><A HREF="#sec1">Local Index</A></LI>
<LI><A HREF="#sec2">Summary</A></LI>
<LI><A HREF="#sec3">Synopsis</A></LI>
<LI><A HREF="#sec4">Description</A></LI>
<LI><A HREF="#sec5">Interface</A></LI>
<LI><A HREF="#sec6">See Also</A></LI>
<LI><A HREF="#sec7">Standards Conformance</A></LI>
</UL>
<A NAME="sec1"><H3>Local Index</H3></A>
No Entries
<A NAME="sec2"><H3>Summary</H3></A>
<P>An exception class</P>
<A NAME="sec3"><H3>Synopsis</H3></A>

<PRE>#include &lt;typeinfo&gt;
</PRE>
<A NAME="sec4"><H3>Description</H3></A>
<P>Objects of class <B><I>bad_cast</I></B> are thrown when a dynamic cast fails, or if the client attempts to use a nonexistent or noninitialized <B><I><A HREF="locale.html">locale</A></I></B> facet. The class is derived from <B><I><A HREF="exception.html">exception</A></I></B>, and thrown by a dynamic cast, <B><I>locale</I></B>, and others.</P>
<A NAME="sec5"><H3>Interface</H3></A>

<UL><PRE>namespace std {
  class bad_cast : public exception {
  public:
    bad_cast() throw();
    bad_cast(const bad_cast&amp;) throw();
    bad_cast&amp; operator=(const bad_cast&amp;) throw();
    virtual ~bad_cast() throw();
    virtual const char* what() const throw();
  };
}
</PRE></UL>
<A NAME="sec6"><H3>See Also</H3></A>
<P><A HREF="exceptions.html">Exceptions</A>, <B><I><A HREF="bad-alloc.html">bad_alloc</A></I></B>, <B><I><A HREF="bad-exception.html">bad_exception</A></I></B>, <B><I><A HREF="bad-typeid.html">bad_typeid</A></I></B>, <B><I><A HREF="domain-error.html">domain_error</A></I></B>, <B><I><A HREF="exception.html">exception</A></I></B>, <B><I><A HREF="invalid-argument.html">invalid_argument</A></I></B>, <B><I><A HREF="ios-base.html#failure">ios_base::failure</A></I></B>, <B><I><A HREF="length-error.html">length_error</A></I></B>, <B><I><A HREF="logic-error.html">logic_error</A></I></B>, <B><I><A HREF="out-of-range.html">out_of_range</A></I></B>, <B><I><A HREF="overflow-error.html">overflow_error</A></I></B>, <B><I><A HREF="range-error.html">range_error</A></I></B>, <B><I><A HREF="runtime-error.html">runtime_error</A></I></B>, <B><I><A HREF="underflow-error.html">underflow_error</A></I></B></P>
<A NAME="sec7"><H3>Standards Conformance</H3></A>
<P><I>ISO/IEC 14882:1998 -- International Standard for Information Systems --Programming Language C++, Section 18.5.2</I></P>

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