1 files changed, 15 insertions, 0 deletions
diff --git a/gcc/testsuite/g++.dg/template/friend22.C b/gcc/testsuite/g++.dg/template/friend22.C
new file mode 100644
index 0000000..41a73bb
--- /dev/null
+++ b/gcc/testsuite/g++.dg/template/friend22.C
@@ -0,0 +1,15 @@
+// { dg-do compile }
+
+// Origin: Benoit Hudson <bh@techhouse.brown.edu>
+
+// PR c++/641: Duplicate friend diagnostics
+
+template <class T> class iterator { };
+template <class T> class item {
+    friend class iterator<T>;
+    friend class iterator<const T>;
+};
+
+class A { };
+
+item<const A> i;