cplusplus
diff --git a/‎source/expressions.tex
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@@ -678,6 +678,20 @@
 If the result is an erroneous value\iref{basic.indet} and
 the bits in the value representation are not valid for the object's type,
 the behavior is undefined.
+\begin{example}
+\begin{codeblock}
+int main() {
+  bool a;
+  bool b = a;
+}
+\end{codeblock}
+If the values of the bytes of the object representation of \tcode{a}
+are determined by the implementation so that the
+bits of the value representation of \tcode{a}
+correspond to \tcode{true} or \tcode{false},
+the lvalue-to-rvalue conversion during the initialization of \tcode{b}
+has erroneous behavior, and undefined behavior otherwise.
+\end{example}
 \end{itemize}
 
 \pnum