Cv-qualification for access to base members

The pointed-to base type should be identically cv-qualified.

Author: frederick-vs-ja

source/classes.tex

@@ -4768,7 +4768,7 @@
 left operand (considered as a pointer in the
 ``\tcode{.}''
 operator case) cannot be implicitly converted to a
-pointer to the naming class of the right operand.
+pointer to the identically cv-qualified naming class of the right operand.
 \begin{note}
 This requirement is in addition to the requirement that
 the member be accessible as named.