1 files changed, 38 insertions, 0 deletions
diff --git a/gcc/testsuite/g++.dg/template/friend23.C b/gcc/testsuite/g++.dg/template/friend23.C
new file mode 100644
index 000000000..96f8125b6
--- /dev/null
+++ b/gcc/testsuite/g++.dg/template/friend23.C
@@ -0,0 +1,38 @@
+// { dg-do compile }
+
+// Origin: Alexandre Tolmos <ktulu@free.fr>
+
+// PR c++/11876: Friend of its own class diagnostics
+
+template <typename T>
+class A
+{
+	friend class A<int>;
+	friend class A<float>;
+protected:
+	T _data;
+	inline A() : _data(0) {}
+	template <typename U>
+	inline A(const A<U>& r) : _data(r._data) {}
+};
+
+class B : public A<int>
+{
+public:
+	inline B() {}
+	inline B(const B& r) : A<int>(r) {}
+};
+
+class C : public A<float>
+{
+public:
+	inline C() {}
+	inline C(const B& r) : A<float>(r) {}
+};
+
+int main(int, char*[])
+{
+	B b1, b2(b1);
+	C c(b1);
+	return 0;
+}