Add the clang library to the repo (with some of my changes, too).

6 files changed, 299 insertions, 0 deletions

diff --git a/clang/test/CXX/dcl.dcl/basic.namespace/namespace.def/namespace.memdef/p3.cpp b/clang/test/CXX/dcl.dcl/basic.namespace/namespace.def/namespace.memdef/p3.cpp
new file mode 100644
index 0000000..069ca0a
--- /dev/null
+++ b/clang/test/CXX/dcl.dcl/basic.namespace/namespace.def/namespace.memdef/p3.cpp
@@ -0,0 +1,93 @@
+// RUN: %clang_cc1 -fsyntax-only %s -verify
+
+// C++'0x [namespace.memdef] p3:
+//   Every name first declared in a namespace is a member of that namespace. If
+//   a friend declaration in a non-local class first declares a class or
+//   function the friend class or function is a member of the innermost
+//   enclosing namespace.
+
+namespace N {
+  struct S0 {
+    friend struct F0;
+    friend void f0(int);
+    struct F0 member_func();
+  };
+  struct F0 { };
+  F0 f0() { return S0().member_func(); }
+}
+N::F0 f0_var = N::f0();
+
+// Ensure we can handle attaching friend declarations to an enclosing namespace
+// with multiple contexts.
+namespace N { struct S1 { struct IS1; }; }
+namespace N {
+  struct S1::IS1 {
+    friend struct F1;
+    friend void f1(int);
+    struct F1 member_func();
+  };
+  struct F1 { };
+  F1 f1() { return S1::IS1().member_func(); }
+}
+N::F1 f1_var = N::f1();
+
+//   The name of the friend is not found by unqualified lookup (3.4.1) or by
+//   qualified lookup (3.4.3) until a matching declaration is provided in that
+//   namespace scope (either before or after the class definition granting
+//   friendship). If a friend function is called, its name may be found by the
+//   name lookup that considers functions from namespaces and classes
+//   associated with the types of the function arguments (3.4.2). If the name
+//   in a friend declaration is neither qualified nor a template-id and the
+//   declaration is a function or an elaborated-type-specifier, the lookup to
+//   determine whether the entity has been previously declared shall not
+//   consider any scopes outside the innermost enclosing namespace.
+
+template<typename T> struct X0 { };
+struct X1 { };
+
+struct Y {
+  template<typename T> union X0;
+  template<typename T> friend union X0;
+  
+  union X1;
+  friend union X1;
+};
+
+namespace N {
+  namespace M {
+    template<typename T> class X;
+  }
+}
+
+namespace N3 {
+  class Y {
+    template<typename T> friend class N::M::X;
+  };
+}
+
+// FIXME: Woefully inadequate for testing
+
+// Friends declared as template-ids aren't subject to the restriction
+// on innermost namespaces.
+// rdar://problem/8552377
+namespace test5 {
+  template <class T> void f(T);  
+  namespace ns {
+    class A {
+      friend void f<int>(int);
+      static void foo(); // expected-note 2 {{declared private here}}
+    };
+
+    // Note that this happens without instantiation.
+    template <class T> void f(T) {
+      A::foo(); // expected-error {{'foo' is a private member of 'test5::ns::A'}}
+    }
+  }
+
+  template <class T> void f(T) {
+    ns::A::foo(); // expected-error {{'foo' is a private member of 'test5::ns::A'}}
+  }
+
+  template void f<int>(int);
+  template void f<long>(long); //expected-note {{instantiation}}
+}
diff --git a/clang/test/CXX/dcl.dcl/basic.namespace/namespace.def/namespace.unnamed/p1.cpp b/clang/test/CXX/dcl.dcl/basic.namespace/namespace.def/namespace.unnamed/p1.cpp
new file mode 100644
index 0000000..b4ec585
--- /dev/null
+++ b/clang/test/CXX/dcl.dcl/basic.namespace/namespace.def/namespace.unnamed/p1.cpp
@@ -0,0 +1,42 @@
+// RUN: %clang_cc1 -emit-llvm-only -verify %s
+
+// This lame little test was ripped straight from the standard.
+namespace {
+  int i; // expected-note {{candidate}}
+}
+void test0() { i++; }
+
+namespace A {
+  namespace {
+    int i; // expected-note {{candidate}}
+    int j;
+  }
+  void test1() { i++; }
+}
+
+using namespace A;
+
+void test2() {
+  i++; // expected-error {{reference to 'i' is ambiguous}}
+  A::i++;
+  j++;
+}
+
+
+// Test that all anonymous namespaces in a translation unit are
+// considered the same context.
+namespace {
+  class Test3 {}; // expected-note {{previous definition}}
+}
+namespace {
+  class Test3 {}; // expected-error {{redefinition of 'Test3'}}
+}
+
+namespace test4 {
+  namespace {
+    class Test4 {}; // expected-note {{previous definition}}
+  }
+  namespace {
+    class Test4 {}; // expected-error {{redefinition of 'Test4'}}
+  }
+}
diff --git a/clang/test/CXX/dcl.dcl/basic.namespace/namespace.def/p1.cpp b/clang/test/CXX/dcl.dcl/basic.namespace/namespace.def/p1.cpp
new file mode 100644
index 0000000..6ffa873
--- /dev/null
+++ b/clang/test/CXX/dcl.dcl/basic.namespace/namespace.def/p1.cpp
@@ -0,0 +1,9 @@
+// RUN: %clang_cc1 -fsyntax-only -verify -std=c++98 -pedantic %s
+
+// Intentionally compiled as C++03 to test the extension warning.
+
+namespace a {} // original
+namespace a {} // ext
+inline namespace b {} // inline original expected-warning {{inline namespaces are}}
+inline namespace b {} // inline ext expected-warning {{inline namespaces are}}
+inline namespace {} // inline unnamed expected-warning {{inline namespaces are}}
diff --git a/clang/test/CXX/dcl.dcl/basic.namespace/namespace.def/p2.cpp b/clang/test/CXX/dcl.dcl/basic.namespace/namespace.def/p2.cpp
new file mode 100644
index 0000000..411c16c
--- /dev/null
+++ b/clang/test/CXX/dcl.dcl/basic.namespace/namespace.def/p2.cpp
@@ -0,0 +1,24 @@
+// RUN: %clang_cc1 -fsyntax-only -verify %s
+
+// PR8430
+namespace N {
+  class A { };
+}
+
+namespace M { }
+
+using namespace M;
+
+namespace N {
+  namespace M {
+  } 
+}
+
+namespace M {
+  namespace N {
+  }
+}
+
+namespace N {
+  A *getA();
+}
diff --git a/clang/test/CXX/dcl.dcl/basic.namespace/namespace.def/p7.cpp b/clang/test/CXX/dcl.dcl/basic.namespace/namespace.def/p7.cpp
new file mode 100644
index 0000000..98d12f9
--- /dev/null
+++ b/clang/test/CXX/dcl.dcl/basic.namespace/namespace.def/p7.cpp
@@ -0,0 +1,13 @@
+// RUN: %clang_cc1 -fsyntax-only -verify -std=c++11 %s
+
+namespace NIL {} // expected-note {{previous definition}}
+inline namespace NIL {} // expected-error {{cannot be reopened as inline}}
+inline namespace IL {} // expected-note {{previous definition}}
+namespace IL {} // expected-warning{{inline namespace cannot be re-opened as a non-inline namespace}}
+
+namespace {} // expected-note {{previous definition}}
+inline namespace {} // expected-error {{cannot be reopened as inline}}
+namespace X {
+  inline namespace {} // expected-note {{previous definition}}
+  namespace {} // expected-error {{cannot be reopened as non-inline}}
+}
diff --git a/clang/test/CXX/dcl.dcl/basic.namespace/namespace.def/p8.cpp b/clang/test/CXX/dcl.dcl/basic.namespace/namespace.def/p8.cpp
new file mode 100644
index 0000000..3bc4856
--- /dev/null
+++ b/clang/test/CXX/dcl.dcl/basic.namespace/namespace.def/p8.cpp
@@ -0,0 +1,118 @@
+// RUN: %clang_cc1 -fsyntax-only -verify -std=c++11 %s
+
+// Fun things you can do with inline namespaces:
+
+inline namespace X {
+  void f1();
+
+  inline namespace Y {
+    void f2();
+
+    template <typename T> class C {};
+  }
+
+  // Specialize and partially specialize somewhere else.
+  template <> class C<int> {};
+  template <typename T> class C<T*> {};
+}
+
+// Qualified and unqualified lookup as if member of enclosing NS.
+void foo1() {
+  f1();
+  ::f1();
+  X::f1();
+  Y::f1(); // expected-error {{no member named 'f1' in namespace 'X::Y'}}
+
+  f2();
+  ::f2();
+  X::f2();
+  Y::f2();
+}
+
+template <> class C<float> {};
+template <typename T> class C<T&> {};
+
+template class C<double>;
+
+
+// As well as all the fun with ADL.
+
+namespace ADL {
+  struct Outer {};
+
+  inline namespace IL {
+    struct Inner {};
+
+    void fo(Outer);
+  }
+
+  void fi(Inner);
+
+  inline namespace IL2 {
+    void fi2(Inner);
+  }
+}
+
+void foo2() {
+  ADL::Outer o;
+  ADL::Inner i;
+  fo(o);
+  fi(i);
+  fi2(i);
+}
+
+// Let's not forget overload sets.
+struct Distinct {};
+inline namespace Over {
+  void over(Distinct);
+}
+void over(int);
+
+void foo3() {
+  Distinct d;
+  ::over(d);
+}
+
+// Don't forget to do correct lookup for redeclarations.
+namespace redecl { inline namespace n1 {
+
+  template <class Tp> class allocator;
+
+  template <>
+  class allocator<void>
+  {
+  public:
+      typedef const void* const_pointer;
+  };
+
+  template <class Tp>
+  class allocator
+  {
+  public:
+      typedef Tp& reference;
+  
+      void allocate(allocator<void>::const_pointer = 0);
+  };
+
+} }
+
+// Normal redeclarations (not for explicit instantiations or
+// specializations) are distinct in an inline namespace vs. not in an
+// inline namespace.
+namespace redecl2 { 
+  inline namespace n1 {
+    void f(int) { }
+    struct X1 { };
+    template<typename T> void f(T) { }
+    template<typename T> struct X2 { };
+    int i = 71;
+    enum E { e };
+  }
+
+  void f(int) { }
+  struct X1 { };
+  template<typename T> void f(T) { }
+  template<typename T> struct X2 { };
+  int i = 71;
+  enum E { e };
+}