1 files changed, 68 insertions, 0 deletions
diff --git a/test/CXX/temp/temp.fct.spec/temp.arg.explicit/p9-0x.cpp b/test/CXX/temp/temp.fct.spec/temp.arg.explicit/p9-0x.cpp
new file mode 100644
index 000000000000..b38cc2760937
--- /dev/null
+++ b/test/CXX/temp/temp.fct.spec/temp.arg.explicit/p9-0x.cpp
@@ -0,0 +1,68 @@
+// RUN: %clang_cc1 -std=c++0x -fsyntax-only -verify %s
+
+// Metafunction to extract the Nth type from a set of types.
+template<unsigned N, typename ...Types> struct get_nth_type;
+
+template<unsigned N, typename Head, typename ...Tail>
+struct get_nth_type<N, Head, Tail...> : get_nth_type<N-1, Tail...> { };
+
+template<typename Head, typename ...Tail>
+struct get_nth_type<0, Head, Tail...> {
+  typedef Head type;
+};
+
+// Placeholder type  when get_nth_type fails.
+struct no_type {};
+
+template<unsigned N>
+struct get_nth_type<N> {
+  typedef no_type type;
+};
+
+template<typename ...Args>
+typename get_nth_type<0, Args...>::type first_arg(Args...);
+
+template<typename ...Args>
+typename get_nth_type<1, Args...>::type second_arg(Args...);
+
+// Test explicit specification of function template arguments.
+void test_explicit_spec_simple() {
+  int *ip1 = first_arg<int *>(0);
+  int *ip2 = first_arg<int *, float*>(0, 0);
+  float *fp1 = first_arg<float *, double*, int*>(0, 0, 0);
+}
+
+// Template argument deduction can extend the sequence of template
+// arguments corresponding to a template parameter pack, even when the
+// sequence contains explicitly specified template arguments.
+void test_explicit_spec_extension(double *dp) {
+  int *ip1 = first_arg<int *>(0, 0);
+  int *ip2 = first_arg<int *, float*>(0, 0, 0, 0);
+  float *fp1 = first_arg<float *, double*, int*>(0, 0, 0);  
+  int *i1 = second_arg<float *>(0, (int*)0, 0);  
+  double *dp1 = first_arg<>(dp);
+}
+
+template<typename ...Types> 
+struct tuple { };
+
+template<typename ...Types>
+void accept_tuple(tuple<Types...>);
+
+void test_explicit_spec_extension_targs(tuple<int, float, double> t3) {
+  accept_tuple(t3);
+  accept_tuple<int, float, double>(t3);
+  accept_tuple<int>(t3);
+  accept_tuple<int, float>(t3);
+}
+
+template<typename R, typename ...ParmTypes>
+void accept_function_ptr(R(*)(ParmTypes...));
+
+void test_explicit_spec_extension_funcparms(int (*f3)(int, float, double)) {
+  accept_function_ptr(f3);
+  accept_function_ptr<int>(f3);
+  accept_function_ptr<int, int>(f3);
+  accept_function_ptr<int, int, float>(f3);
+  accept_function_ptr<int, int, float, double>(f3);
+}