1 files changed, 35 insertions, 0 deletions
diff --git a/test/SemaTemplate/function-template-specialization.cpp b/test/SemaTemplate/function-template-specialization.cpp
new file mode 100644
index 000000000000..90e38cc882fe
--- /dev/null
+++ b/test/SemaTemplate/function-template-specialization.cpp
@@ -0,0 +1,35 @@
+// RUN: clang-cc -fsyntax-only -verify %s
+
+template<int N> void f0(int (&array)[N]);
+
+// Simple function template specialization (using overloading)
+template<> void f0(int (&array)[1]);
+
+void test_f0() {
+  int iarr1[1];
+  f0(iarr1);
+}
+
+// Function template specialization where there are no matches
+template<> void f0(char (&array)[1]); // expected-error{{no function template matches}}
+template<> void f0<2>(int (&array)[2]) { }
+
+// Function template specialization that requires partial ordering
+template<typename T, int N> void f1(T (&array)[N]); // expected-note{{matches}}
+template<int N> void f1(int (&array)[N]); // expected-note{{matches}}
+
+template<> void f1(float (&array)[1]);
+template<> void f1(int (&array)[1]);
+
+// Function template specialization that results in an ambiguity
+template<typename T> void f1(T (&array)[17]); // expected-note{{matches}}
+template<> void f1(int (&array)[17]); // expected-error{{ambiguous}}
+
+// Resolving that ambiguity with explicitly-specified template arguments.
+template<int N> void f2(double (&array)[N]);
+template<typename T> void f2(T (&array)[42]);
+
+template<> void f2<double>(double (&array)[42]);
+template<> void f2<42>(double (&array)[42]);
+
+void f2<25>(double (&array)[25]); // expected-error{{specialization}}