(j3.2006) Did we intend to prevent this?

[Robert Corbett]

The problem seems worse than Malcolm makes it out to be.  Assume a named 
constant has a pointer component that is initialized to be pointer associated 
with a variable.  Item (1) of the list given in Clause 7.1.12 (page 151) is

      (1)  a constant or a subobject of a constant,

As Val noted, a reference to a pointer component of a named constant will get 
the value of the variable that is the target of the pointer component.  
According to item (1), that reference to a pointer component can be a primary in 
a constant expression.  That is not good.

Clause 16.5.2.3 does not cover the case of a target corresponding to an item in 
a structure constructor.

Bob Corbett