Re: egcs-2.91.43: error for valid c++ code

[Martin von Loewis <martin at mira dot isdn dot cs dot tu-berlin dot de>]

> I am not 100% sure, but I think the code below is valid C++
> code. egcs gives an error message.

The code is OK; here is a patch for egcs.

1998-07-08  Martin von Löwis  <loewis@informatik.hu-berlin.de>

	* init.c (build_offset_ref): Call mark_used and
	convert_from_reference for namespace members.

--- /dev/null	Mon Jul 18 01:46:18 1994
+++ g++.ns/ns16.C	Tue Jul  7 22:05:24 1998
@@ -0,0 +1,12 @@
+class Y {
+public:
+  void operator +(int) const;
+};
+
+namespace X {
+  extern Y const& z;
+}
+
+void f(void) {
+  X::z + 1;
+}

Index: init.c
===================================================================
RCS file: /egcs/carton/cvsfiles/egcs/gcc/cp/init.c,v
retrieving revision 1.51
diff -u -r1.51 init.c
--- init.c	1998/06/23 01:49:04	1.51
+++ init.c	1998/07/08 19:27:15
@@ -1538,7 +1538,11 @@
 
   /* Handle namespace names fully here.  */
   if (TREE_CODE (type) == NAMESPACE_DECL)
-      return lookup_namespace_name (type, name);
+    {
+      t = lookup_namespace_name (type, name);
+      mark_used (t);
+      return convert_from_reference (t);
+    }
 
   if (type == NULL_TREE || ! is_aggr_type (type, 1))
     return error_mark_node;