test/Parser/cxx-using-directive.cpp

   1 // RUN: %clang_cc1 -fsyntax-only -verify %s
   2
   3 class A {};
   4
   5 namespace B {
   6   namespace A {}
   7   using namespace A ;
   8 }
   9
  10 namespace C {}
  11
  12 namespace D {
  13
  14   class C {
  15
  16     using namespace B ; // expected-error{{not allowed}}
  17   };
  18
  19   namespace B {}
  20
  21   using namespace C ;
  22   using namespace B::A ; // expected-error{{expected namespace name}}
  23   //FIXME: would be nice to note, that A is not member of D::B
  24   using namespace ::B::A ;
  25   using namespace ::D::C ; // expected-error{{expected namespace name}}
  26 }
  27
  28 using namespace ! ; // expected-error{{expected namespace name}}
  29 using namespace A ; // expected-error{{expected namespace name}}
  30 using namespace ::A // expected-error{{expected namespace name}} \
  31                     // expected-error{{expected ';' after namespace name}}
  32                     B ;
  33
  34 void test_nslookup() {
  35   int B;
  36   class C;
  37   using namespace B;
  38   using namespace C;
  39 }
  40