decl.c (push_overloaded_decl): Only overwrite the old binding if there was one.

	* decl.c (push_overloaded_decl): Only overwrite the old binding if
	there was one.
	* decl2.c (do_local_using_decl): Fix loop termination.

From-SVN: r25560

gcc/cp/ChangeLog

+1999-03-03  Martin von Lwis  <loewis@informatik.hu-berlin.de>
+
+	* decl.c (push_overloaded_decl): Only overwrite the old binding if
+	there was one.
+	* decl2.c (do_local_using_decl): Fix loop termination.
+
 1999-03-02  Mark Mitchell  <mark@markmitchell.com>
 
 	* cp-tree.h (determine_specialization): Don't declare.

gcc/cp/decl.c

@@ -4274,11 +4274,12 @@ push_overloaded_decl (decl, flags)
   else
     {
       /* We only create an OVERLOAD if there was a previous binding at
-	 this level.  In that case, we need to remove the old binding
-	 and replace it with the new binding.  We must also run
-	 through the NAMES on the binding level where the name was
-	 bound to update the chain.  */
-      if (TREE_CODE (new_binding) == OVERLOAD)
+	 this level, or if decl is a template. In the former case, we
+	 need to remove the old binding and replace it with the new
+	 binding.  We must also run through the NAMES on the binding
+	 level where the name was bound to update the chain.  */
+
+      if (TREE_CODE (new_binding) == OVERLOAD && old)
 	{
 	  tree *d;
 	  

gcc/cp/decl2.c

@@ -4833,11 +4833,18 @@ do_local_using_decl (decl)
     {
       if (is_overloaded_fn (newval))
 	{
-	  tree fn;
+	  tree fn, term;
 
 	  /* We only need to push declarations for those functions
-	     that were not already bound in the current level.  */
-	  for (fn = newval; fn != oldval; fn = OVL_NEXT (fn))
+	     that were not already bound in the current level.
+	     The old value might be NULL_TREE, it might be a single
+	     function, or an OVERLOAD.  */
+	  if (oldval && TREE_CODE (oldval) == OVERLOAD)
+	    term = OVL_FUNCTION (oldval);
+	  else
+	    term = oldval;
+	  for (fn = newval; fn && OVL_CURRENT (fn) != term; 
+	       fn = OVL_NEXT (fn))
 	    push_overloaded_decl (OVL_CURRENT (fn), 
 				  PUSH_LOCAL | PUSH_USING);
 	}