CWG2400 Constexpr virtual functions and temporary objects

cplusplus · Aug 2, 2019 · 9824fd7 · 9824fd7
1 parent 9b76db5
commit 9824fd7
Showing 1 changed file with 8 additions and 0 deletions.
diff --git a/source/expressions.tex b/source/expressions.tex
@@ -6870,6 +6870,14 @@
 for a constexpr function or
 constexpr constructor\iref{dcl.constexpr};
 
+\item
+an invocation of a virtual function\iref{class.virtual}
+for an object unless
+  \begin{itemize}
+  \item the object is usable in constant expressions or
+  \item its lifetime began within the evaluation of \tcode{e};
+  \end{itemize}
+
 \item
 an expression that would exceed the implementation-defined
 limits (see \ref{implimits});