clang/test/CXX/basic/basic.lookup/basic.lookup.argdep/p2-inline-namespace.cpp

   1 // RUN: %clang_cc1 -fsyntax-only -verify -std=c++11 %s
   2
   3 // C++11 [basic.lookup.argdep]p2
   4 //
   5 // [...] If an associated namespace is an inline namespace (10.3.1), its
   6 // enclosing namespace is also included in the set. If an associated
   7 // namespace directly contains inline namespaces, those inline namespaces
   8 // are also included in the set.
   9
  10 namespace test1 {
  11   namespace L {
  12     namespace M {
  13       inline namespace N {
  14         inline namespace O {
  15           struct S {};
  16           void f1(S);
  17         }
  18         void f2(S);
  19       }
  20       void f3(S);
  21     }
  22     void f4(M::S); // expected-note {{declared here}}
  23   }
  24
  25   void test() {
  26     L::M::S s;
  27     f1(s); // ok
  28     f2(s); // ok
  29     f3(s); // ok
  30     f4(s); // expected-error {{use of undeclared}}
  31   }
  32 }
  33
  34 namespace test2 {
  35   namespace L {
  36     struct S {};
  37     inline namespace M {
  38       inline namespace N {
  39         inline namespace O {
  40           void f1(S);
  41         }
  42         void f2(S);
  43       }
  44       void f3(S);
  45     }
  46     void f4(S);
  47   }
  48
  49   void test() {
  50     L::S s;
  51     f1(s); // ok
  52     f2(s); // ok
  53     f3(s); // ok
  54     f4(s); // ok
  55   }
  56 }