typeck.c (expr_sizeof): Reinstall and augment OFFSET_REF comment.

	* typeck.c (expr_sizeof): Reinstall and augment OFFSET_REF
	comment.

From-SVN: r29429

gcc/cp/ChangeLog

+1999-09-15  Nathan Sidwell  <nathan@acm.org>
+
+	* typeck.c (expr_sizeof): Reinstall and augment OFFSET_REF
+	comment.
+
 1999-09-14  Alexandre Oliva  <oliva@lsd.ic.unicamp.br>
 
 	* lex.c (cp_pragma_interface, cp_pragma_implementation): Copy

gcc/cp/typeck.c

@@ -1610,6 +1610,10 @@ expr_sizeof (e)
       incomplete_type_error (e, TREE_TYPE (e));
       return size_int (1);
     }
+  /* It's illegal to say `sizeof (X::i)' for `i' a non-static data
+     member unless you're in a non-static member of X.  But, we used
+     to support this usage, so we still permit it unless we're being
+     pedantic.  [expr.prim]  */
   else if (TREE_CODE (e) == OFFSET_REF)
     e = resolve_offset_ref (e);