--- /dev/null
+// RUN: clang-cc -fsyntax-only -verify %s
+
+template<class T> class X;
+template<> class X<int>; // expected-note{{forward}}
+X<int>* p;
+
+X<int> x; // expected-error{{incomplete type}}
--- /dev/null
+// RUN: clang-cc -fsyntax-only -verify %s
+
+template<class T> class Array { /* ... */ };
+template<class T> void sort(Array<T>& v);
+
+// explicit specialization for sort(Array<int>&)
+// with deduced template-argument of type int
+template<> void sort(Array<int>&);
--- /dev/null
+// RUN: clang-cc -fsyntax-only %s
+
+template<typename T> void f(T);
+
+template<> void f(int) { }
+void f(int) { }
--- /dev/null
+// RUN: clang-cc -fsyntax-only -verify %s
+
+namespace N {
+ template<class T> class X { /* ... */ };
+ template<class T> class Y { /* ... */ };
+ template<> class X<int> { /* ... */ };
+ template<> class Y<double>;
+
+ const unsigned NumElements = 17;
+}
+
+template<> class N::Y<double> {
+ int array[NumElements];
+};