1 files changed, 211 insertions, 0 deletions
diff --git a/test/SemaCXX/overloaded-operator.cpp b/test/SemaCXX/overloaded-operator.cpp
new file mode 100644
index 0000000..916d753
--- /dev/null
+++ b/test/SemaCXX/overloaded-operator.cpp
@@ -0,0 +1,211 @@
+// RUN: clang-cc -fsyntax-only -verify %s 
+class X { };
+
+X operator+(X, X);
+
+void f(X x) {
+  x = x + x;
+}
+
+struct Y;
+struct Z;
+
+struct Y {
+  Y(const Z&);
+};
+
+struct Z {
+  Z(const Y&);
+};
+
+Y operator+(Y, Y);
+bool operator-(Y, Y); // expected-note{{candidate function}}
+bool operator-(Z, Z); // expected-note{{candidate function}}
+
+void g(Y y, Z z) {
+  y = y + z;
+  bool b = y - z; // expected-error{{use of overloaded operator '-' is ambiguous; candidates are:}}
+}
+
+struct A {
+  bool operator==(Z&); // expected-note{{candidate function}}
+};
+
+A make_A();
+
+bool operator==(A&, Z&); // expected-note{{candidate function}}
+
+void h(A a, const A ac, Z z) {
+  make_A() == z;
+  a == z; // expected-error{{use of overloaded operator '==' is ambiguous; candidates are:}}
+  ac == z; // expected-error{{invalid operands to binary expression ('struct A const' and 'struct Z')}}
+}
+
+struct B {
+  bool operator==(const B&) const;
+
+  void test(Z z) {
+    make_A() == z;
+  }
+};
+
+enum Enum1 { };
+enum Enum2 { };
+
+struct E1 {
+  E1(Enum1) { }
+};
+
+struct E2 {
+  E2(Enum2);
+};
+
+// C++ [over.match.oper]p3 - enum restriction.
+float& operator==(E1, E2); 
+
+void enum_test(Enum1 enum1, Enum2 enum2, E1 e1, E2 e2) {
+  float &f1 = (e1 == e2);
+  float &f2 = (enum1 == e2); 
+  float &f3 = (e1 == enum2); 
+  float &f4 = (enum1 == enum2);  // expected-error{{non-const lvalue reference to type 'float' cannot be initialized with a temporary of type 'bool'}}
+}
+
+
+struct PostInc {
+  PostInc operator++(int);
+  PostInc& operator++();
+};
+
+struct PostDec {
+  PostDec operator--(int);
+  PostDec& operator--();
+};
+
+void incdec_test(PostInc pi, PostDec pd) {
+  const PostInc& pi1 = pi++;
+  const PostDec& pd1 = pd--;
+  PostInc &pi2 = ++pi;
+  PostDec &pd2 = --pd;
+}
+
+struct SmartPtr {
+  int& operator*();
+  long& operator*() const volatile;
+};
+
+void test_smartptr(SmartPtr ptr, const SmartPtr cptr, 
+                   const volatile SmartPtr cvptr) {
+  int &ir = *ptr;
+  long &lr = *cptr;
+  long &lr2 = *cvptr;
+}
+
+
+struct ArrayLike {
+  int& operator[](int);
+};
+
+void test_arraylike(ArrayLike a) {
+  int& ir = a[17];
+}
+
+struct SmartRef {
+  int* operator&();
+};
+
+void test_smartref(SmartRef r) {
+  int* ip = &r;
+}
+
+bool& operator,(X, Y);
+
+void test_comma(X x, Y y) {
+  bool& b1 = (x, y);
+  X& xr = (x, x);
+}
+
+struct Callable {
+  int& operator()(int, double = 2.71828); // expected-note{{candidate function}}
+  float& operator()(int, double, long, ...); // expected-note{{candidate function}}
+
+  double& operator()(float); // expected-note{{candidate function}}
+};
+
+struct Callable2 {
+  int& operator()(int i = 0);
+  double& operator()(...) const;
+};
+
+void test_callable(Callable c, Callable2 c2, const Callable2& c2c) {
+  int &ir = c(1);
+  float &fr = c(1, 3.14159, 17, 42);
+
+  c(); // expected-error{{no matching function for call to object of type 'struct Callable'; candidates are:}}
+
+  double &dr = c(1.0f);
+
+  int &ir2 = c2();
+  int &ir3 = c2(1);
+  double &fr2 = c2c();
+}
+
+typedef float FLOAT;
+typedef int& INTREF;
+typedef INTREF Func1(FLOAT, double);
+typedef float& Func2(int, double);
+
+struct ConvertToFunc {
+  operator Func1*(); // expected-note{{conversion candidate of type 'INTREF (*)(FLOAT, double)'}}
+  operator Func2&(); // expected-note{{conversion candidate of type 'float &(&)(int, double)'}}
+  void operator()();
+};
+
+void test_funcptr_call(ConvertToFunc ctf) {
+  int &i1 = ctf(1.0f, 2.0);
+  float &f2 = ctf((short int)1, 1.0f);
+  ctf((long int)17, 2.0); // expected-error{{error: call to object of type 'struct ConvertToFunc' is ambiguous; candidates are:}}
+  ctf();
+}
+
+struct HasMember {
+  int m;
+};
+
+struct Arrow1 {
+  HasMember* operator->();
+};
+
+struct Arrow2 {
+  Arrow1 operator->(); // expected-note{{candidate function}}
+};
+
+void test_arrow(Arrow1 a1, Arrow2 a2, const Arrow2 a3) {
+  int &i1 = a1->m;
+  int &i2 = a2->m;
+  a3->m; // expected-error{{no viable overloaded 'operator->'; candidate is}}
+}
+
+struct CopyConBase {
+};
+
+struct CopyCon : public CopyConBase {
+  CopyCon(const CopyConBase &Base);
+
+  CopyCon(const CopyConBase *Base) {
+    *this = *Base;
+  }
+};
+
+namespace N {
+  struct X { };
+}
+
+namespace M {
+  N::X operator+(N::X, N::X);
+}
+
+namespace M {
+  void test_X(N::X x) {
+    (void)(x + x);
+  }
+}