1 files changed, 191 insertions, 0 deletions
diff --git a/clang/test/CXX/over/over.over/p2-resolve-single-template-id.cpp b/clang/test/CXX/over/over.over/p2-resolve-single-template-id.cpp
new file mode 100644
index 0000000..e021711
--- /dev/null
+++ b/clang/test/CXX/over/over.over/p2-resolve-single-template-id.cpp
@@ -0,0 +1,191 @@
+// RUN: %clang_cc1 -fsyntax-only -verify -Wno-bool-conversion %s
+
+typedef __typeof__(((int*)0)-((int*)0)) ptrdiff_t;
+
+namespace DontResolveTooEarly_WaitForOverloadResolution
+{
+  template <class T> T* f(int);	// #1 
+  template <class T, class U> T& f(U); // #2 
+  
+  void g() {
+    int *ip = f<int>(1);	// calls #1
+  }
+
+  template <class T> 
+    T* f2(int); 
+  template <class T, class U> 
+    T& f2(U); 
+
+  void g2() {
+    int*ip = (f2<int>)(1); // ok
+  }
+
+} // End namespace
+
+namespace DontAllowUnresolvedOverloadedExpressionInAnUnusedExpression
+{
+  void one() { }
+  template<class T> void oneT() { }
+
+  void two() { } // expected-note 2 {{possible target for call}}
+  void two(int) { } // expected-note 2 {{possible target for call}}
+  template<class T> void twoT() { }  // expected-note 2 {{possible target for call}}
+  template<class T> void twoT(T) { }  // expected-note 2 {{possible target for call}}
+
+  void check()
+  {
+    one; // expected-warning {{expression result unused}}
+    two; // expected-error{{reference to overloaded function could not be resolved; did you mean to call it with no arguments?}}
+    oneT<int>; // expected-warning {{expression result unused}}
+    twoT<int>; // expected-error {{reference to overloaded function could not be resolved; did you mean to call it?}}
+  }
+
+  // check the template function case
+  template<class T> void check()
+  {
+    one; // expected-warning {{expression result unused}}
+    two; // expected-error{{reference to overloaded function could not be resolved; did you mean to call it with no arguments?}}
+    oneT<int>; // expected-warning {{expression result unused}}
+    twoT<int>; // expected-error {{reference to overloaded function could not be resolved; did you mean to call it?}}
+ 
+  }
+
+}
+
+  template<typename T>
+    void twoT() { }
+  template<typename T, typename U>
+    void twoT(T) { }
+  
+
+  void two() { }; //expected-note 5{{candidate}}
+  void two(int) { }; //expected-note 5{{candidate}}
+ 
+
+
+  void one() { }
+  template<class T> 
+    void oneT() { }
+
+  template<class T>
+  void cant_resolve() { } //expected-note 3{{candidate}}
+ 
+  template<class T> void cant_resolve(T) { }//expected-note 3{{candidate}}
+ 
+
+int main()
+{
+  
+  { static_cast<void>(one); }
+  { (void)(one); }
+  { static_cast<void>(oneT<int>); }
+  { (void)(oneT<int>); }
+
+  { static_cast<void>(two); } // expected-error {{address of overloaded function 'two' cannot be static_cast to type 'void'}}
+  { (void)(two); } // expected-error {{address of overloaded function 'two' cannot be cast to type 'void'}}
+  { static_cast<void>(twoT<int>); } 
+  { (void)(twoT<int>); } 
+
+
+  { ptrdiff_t x = reinterpret_cast<ptrdiff_t>(oneT<int>); } 
+  { (void) reinterpret_cast<int (*)(char, double)>(oneT<int>); } 
+  { (void) reinterpret_cast<ptrdiff_t>(one); }
+  { (void) reinterpret_cast<int (*)(char, double)>(one); }
+
+  { ptrdiff_t x = reinterpret_cast<ptrdiff_t>(twoT<int>); }  
+  { (void) reinterpret_cast<int (*)(char, double)>(twoT<int>); } 
+  { (void) reinterpret_cast<void (*)(int)>(two); } //expected-error {{reinterpret_cast}}
+  { (void) static_cast<void (*)(int)>(two); } //ok
+
+  { (void) reinterpret_cast<int>(two); } //expected-error {{reinterpret_cast}}
+  { (void) reinterpret_cast<int (*)(char, double)>(two); } //expected-error {{reinterpret_cast}}
+
+  { bool b = (twoT<int>); } 
+  { bool b = (twoT<int, int>); } 
+
+  { bool b = &twoT<int>; //&foo<int>; }
+    b = &(twoT<int>); }
+
+  { ptrdiff_t x = (ptrdiff_t) &twoT<int>;
+      x = (ptrdiff_t) &twoT<int>; }
+
+  { ptrdiff_t x = (ptrdiff_t) twoT<int>;
+      x = (ptrdiff_t) twoT<int>; }
+
+  
+  { ptrdiff_t x = (ptrdiff_t) &twoT<int,int>;
+  x = (ptrdiff_t) &twoT<int>; }
+
+  { oneT<int>;   &oneT<int>; } //expected-warning 2{{expression result unused}}
+  { static_cast<void>(cant_resolve<int>); } // expected-error {{address of overload}}
+  { bool b = cant_resolve<int>; } // expected-error {{address of overload}}
+  { (void) cant_resolve<int>; } // expected-error {{address of overload}}
+
+}
+
+namespace member_pointers {
+  struct S {
+    template <typename T> bool f(T) { return false; }
+    template <typename T> static bool g(T) { return false; }
+
+    template <typename T> bool h(T) { return false; }  // expected-note 3 {{possible target for call}}
+    template <int N> static bool h(int) { return false; } // expected-note 3 {{possible target for call}}
+  };
+
+  void test(S s) {
+    if (S::f<char>) return; // expected-error {{call to non-static member function without an object argument}}
+    if (S::f<int>) return; // expected-error {{call to non-static member function without an object argument}}
+    if (&S::f<char>) return;
+    if (&S::f<int>) return;
+    if (s.f<char>) return; // expected-error {{reference to non-static member function must be called}}
+    if (s.f<int>) return; // expected-error {{reference to non-static member function must be called}}
+    if (&s.f<char>) return; // expected-error {{cannot create a non-constant pointer to member function}}
+    if (&s.f<int>) return; // expected-error {{cannot create a non-constant pointer to member function}}
+
+    if (S::g<char>) return;
+    if (S::g<int>) return;
+    if (&S::g<char>) return;
+    if (&S::g<int>) return;
+    if (s.g<char>) return;
+    if (s.g<int>) return;
+    if (&s.g<char>) return;
+    if (&s.g<int>) return;
+
+    if (S::h<42>) return;
+    if (S::h<int>) return; // expected-error {{reference to overloaded function could not be resolved; did you mean to call it?}}
+    if (&S::h<42>) return;
+    if (&S::h<int>) return;
+    if (s.h<42>) return;
+    if (s.h<int>) return; // expected-error {{reference to overloaded function could not be resolved; did you mean to call it?}}
+    if (&s.h<42>) return;
+    if (&s.h<int>) return; // expected-error {{reference to overloaded function could not be resolved; did you mean to call it?}}
+
+    { bool b = S::f<char>; } // expected-error {{call to non-static member function without an object argument}}
+    { bool b = S::f<int>; } // expected-error {{call to non-static member function without an object argument}}
+    { bool b = &S::f<char>; }
+    { bool b = &S::f<int>; }
+    // These next two errors are terrible.
+    { bool b = s.f<char>; } // expected-error {{reference to non-static member function must be called}}
+    { bool b = s.f<int>; } // expected-error {{reference to non-static member function must be called}}
+    { bool b = &s.f<char>; } // expected-error {{cannot create a non-constant pointer to member function}}
+    { bool b = &s.f<int>; } // expected-error {{cannot create a non-constant pointer to member function}}
+
+    { bool b = S::g<char>; }
+    { bool b = S::g<int>; }
+    { bool b = &S::g<char>; }
+    { bool b = &S::g<int>; }
+    { bool b = s.g<char>; }
+    { bool b = s.g<int>; }
+    { bool b = &s.g<char>; }
+    { bool b = &s.g<int>; }
+
+    { bool b = S::h<42>; }
+    { bool b = S::h<int>; } // expected-error {{can't form member pointer of type 'bool' without '&' and class name}}
+    { bool b = &S::h<42>; }
+    { bool b = &S::h<int>; }
+    { bool b = s.h<42>; }
+    { bool b = s.h<int>; } // expected-error {{can't form member pointer of type 'bool' without '&' and class name}}
+    { bool b = &s.h<42>; }
+    { bool b = &s.h<int>; } // expected-error {{can't form member pointer of type 'bool' without '&' and class name}}
+  }
+}