* decl2.c (validate_nonmember_using_decl): Handle NAMESPACE_DECL.

From-SVN: r46565

gcc/cp/ChangeLog

+2001-10-27  Kriang Lerdsuwanakij  <lerdsuwa@users.sourceforge.net>
+
+	* decl2.c (validate_nonmember_using_decl): Handle NAMESPACE_DECL.
+
 2001-10-25  Zack Weinberg  <zack@codesourcery.com>
 
 	* cp-lang.c: Redefine LANG_HOOKS_CLEAR_BINDING_STACK to

gcc/cp/decl2.c

@@ -4877,6 +4877,11 @@ validate_nonmember_using_decl (decl, scope, name)
       *scope = global_namespace;
       *name = decl;
     }
+  else if (TREE_CODE (decl) == NAMESPACE_DECL)
+    {
+      cp_error ("namespace `%D' not allowed in using-declaration", decl);
+      return NULL_TREE;
+    }
   else
     my_friendly_abort (382);
   if (DECL_P (*name))

gcc/testsuite/g++.dg/lookup/using2.C

@@ -25,6 +25,8 @@ namespace N
   template<int> void f() {}
 }
 
+using N;             // { dg-error "parse error" "" }
+using ::N;           // { dg-error "using-declaration" "" }
 using N::f< 0 >;     // { dg-error "using-declaration" "" }
 
 struct  A {