1 files changed, 38 insertions, 0 deletions
diff --git a/clang/test/Parser/cxx-using-directive.cpp b/clang/test/Parser/cxx-using-directive.cpp
new file mode 100644
index 0000000..1d781fb
--- /dev/null
+++ b/clang/test/Parser/cxx-using-directive.cpp
@@ -0,0 +1,38 @@
+// RUN: %clang_cc1 -fsyntax-only -verify %s
+
+class A {};
+
+namespace B {
+  namespace A {} // expected-note{{namespace '::B::A' defined here}}
+  using namespace A ;
+}
+
+namespace C {}
+
+namespace D {
+  
+  class C {
+    
+    using namespace B ; // expected-error{{not allowed}}
+  };
+  
+  namespace B {}
+  
+  using namespace C ;
+  using namespace B::A ; // expected-error{{no namespace named 'A' in namespace 'D::B'; did you mean '::B::A'?}}
+  using namespace ::B::A ;
+  using namespace ::D::C ; // expected-error{{expected namespace name}}
+}
+
+using namespace ! ; // expected-error{{expected namespace name}}
+using namespace A ; // expected-error{{expected namespace name}}
+using namespace ::A // expected-error{{expected namespace name}} \
+                    // expected-error{{expected ';' after namespace name}}
+                    B ; 
+
+void test_nslookup() {
+  int B;
+  class C;
+  using namespace B;
+  using namespace C;
+}