decl.c (lang_mark_tree): Mark NAMESPACE_LEVEL.

	* decl.c (lang_mark_tree): Mark NAMESPACE_LEVEL.

	* pt.c (tsubst, case INTEGER_TYPE): Be more explicit in zero-size
	array error.

From-SVN: r29954

gcc/cp/ChangeLog

+1999-10-13  Jason Merrill  <jason@yorick.cygnus.com>
+
+	* decl.c (lang_mark_tree): Mark NAMESPACE_LEVEL.
+
+	* pt.c (tsubst, case INTEGER_TYPE): Be more explicit in zero-size
+	array error.
+
 1999-10-13  Mark Mitchell  <mark@codesourcery.com>
 
 	* decl.c (make_rtl_for_local_static): Don't create register RTL

gcc/cp/decl.c

@@ -14353,6 +14353,8 @@ lang_mark_tree (t)
 	  ggc_mark_tree (ld->decl_flags.context);
 	  if (TREE_CODE (t) != NAMESPACE_DECL)
 	    ggc_mark_tree (ld->decl_flags.u.template_info);
+	  else
+	    mark_binding_level (&NAMESPACE_LEVEL (t));
 	  if (CAN_HAVE_FULL_LANG_DECL_P (t))
 	    {
 	      ggc_mark_tree (ld->main_decl_variant);

gcc/cp/pt.c

@@ -6324,7 +6324,7 @@ tsubst (t, args, complain, in_decl)
 		 Attempting to create an array with a size that is
 		 zero or negative.  */
 	    if (complain)
-	      cp_error ("creating array with size `%E'", max);
+	      cp_error ("creating array with size zero (`%E')", max);
 
 	    return error_mark_node;
 	  }