1 files changed, 89 insertions, 0 deletions
diff --git a/test/SemaCXX/references.cpp b/test/SemaCXX/references.cpp
new file mode 100644
index 0000000..9067a86
--- /dev/null
+++ b/test/SemaCXX/references.cpp
@@ -0,0 +1,89 @@
+// RUN: clang-cc -fsyntax-only -verify %s
+int g(int);
+
+void f() {
+  int i;
+  int &r = i;
+  r = 1;
+  int *p = &r;
+  int &rr = r;
+  int (&rg)(int) = g;
+  rg(i);
+  int a[3];
+  int (&ra)[3] = a;
+  ra[1] = i;
+  int *Q;
+  int *& P = Q;
+  P[1] = 1;
+}
+
+typedef int t[1];
+void test2() {
+    t a;
+    t& b = a;
+
+
+    int c[3];
+    int (&rc)[3] = c;
+}
+
+// C++ [dcl.init.ref]p5b1
+struct A { };
+struct B : A { } b;
+
+void test3() {
+  double d = 2.0;
+  double& rd = d; // rd refers to d
+  const double& rcd = d; // rcd refers to d
+
+  A& ra = b; // ra refers to A subobject in b
+  const A& rca = b; // rca refers to A subobject in b
+}
+
+B fB();
+
+// C++ [dcl.init.ref]p5b2
+void test4() {
+  double& rd2 = 2.0; // expected-error{{non-const lvalue reference to type 'double' cannot be initialized with a temporary of type 'double'}}
+  int i = 2;
+  double& rd3 = i; // expected-error{{non-const lvalue reference to type 'double' cannot be initialized with a value of type 'int'}}
+
+  const A& rca = fB();
+}
+
+void test5() {
+  const double& rcd2 = 2; // rcd2 refers to temporary with value 2.0
+  const volatile int cvi = 1;
+  const int& r = cvi; // expected-error{{initialization of reference to type 'int const' with a value of type 'int const volatile' drops qualifiers}}
+}
+
+// C++ [dcl.init.ref]p3
+int& test6(int& x) {
+  int& yo; // expected-error{{declaration of reference variable 'yo' requires an initializer}}
+
+  return x;
+}
+int& not_initialized_error; // expected-error{{declaration of reference variable 'not_initialized_error' requires an initializer}}
+extern int& not_initialized_okay;
+
+class Test6 {
+  int& okay;
+};
+
+struct C : B, A { };
+
+void test7(C& c) {
+  A& a1 = c; // expected-error {{ambiguous conversion from derived class 'struct C' to base class 'struct A':}}
+}
+
+// C++ [dcl.ref]p1, C++ [dcl.ref]p4
+void test8(int& const,// expected-error{{'const' qualifier may not be applied to a reference}}
+           
+           void&,     // expected-error{{cannot form a reference to 'void'}}
+           int& &)    // expected-error{{type name declared as a reference to a reference}}
+{
+  typedef int& intref;
+  typedef intref& intrefref; // C++ DR 106: reference collapsing
+
+  typedef intref const intref_c; // okay. FIXME: how do we verify that this is the same type as intref?
+}