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

1 files changed, 71 insertions, 0 deletions

diff --git a/clang/test/SemaCXX/trailing-return-0x.cpp b/clang/test/SemaCXX/trailing-return-0x.cpp
new file mode 100644
index 0000000..c219b77
--- /dev/null
+++ b/clang/test/SemaCXX/trailing-return-0x.cpp
@@ -0,0 +1,71 @@
+// RUN: %clang_cc1 -fsyntax-only -verify -std=c++11 %s
+
+template <class T>
+struct only
+{
+    only(T) {}
+
+    template <class U>
+    only(U)
+    {
+        static_assert(sizeof(U) == 0, "expected type failure");
+    }
+};
+
+auto f() -> int
+{
+    return 0;
+}
+
+auto g(); // expected-error{{return without trailing return type}}
+
+int h() -> int; // expected-error{{trailing return type must specify return type 'auto', not 'int'}}
+
+int i();
+auto i() -> int;
+int i() {}
+
+using T = auto (int) -> auto (*)(char) -> void; // expected-note {{previous}}
+using T = void; // expected-error {{type alias redefinition with different types ('void' vs 'auto (int) -> auto (*)(char) -> void')}}
+
+using U = auto (int) -> auto (*)(char) -> void;
+using U = void (*(int))(char); // ok
+
+int x;
+
+template <class T>
+auto i(T x) -> decltype(x)
+{
+    return x;
+}
+
+only<double> p1 = i(1.0);
+
+template <class T>
+struct X
+{
+    auto f(T x) -> T { return x; }
+
+    template <class U>
+    auto g(T x, U y) -> decltype(x + y)
+    {
+        return x + y;
+    }
+
+  template<typename U>
+  struct nested {
+    template <class V>
+    auto h(T x, U y, V z) -> decltype(x + y + z)
+    {
+        return x + y + z;
+    }
+  };
+
+  template<typename U>
+  nested<U> get_nested();
+};
+
+X<int> xx;
+only<int> p2 = xx.f(0L);
+only<double> p3 = xx.g(0L, 1.0);
+only<double> p4 = xx.get_nested<double>().h(0L, 1.0, 3.14f);