1 files changed, 16 insertions, 0 deletions
diff --git a/gcc/testsuite/g++.dg/template/access16.C b/gcc/testsuite/g++.dg/template/access16.C
new file mode 100644
index 000000000..bb7ebccb8
--- /dev/null
+++ b/gcc/testsuite/g++.dg/template/access16.C
@@ -0,0 +1,16 @@
+// PR c++/23842
+
+struct S;
+extern S *p;
+template <class T> int f(T*, int y = ((T*)p)->x) {
+	return y;
+}
+struct S {
+private:
+  int x;
+  template <class U> friend int f(U*, int);
+};
+int g() {
+  return f(p);
+}
+