1 files changed, 16 insertions, 0 deletions
diff --git a/gcc/testsuite/g++.dg/lookup/using52.C b/gcc/testsuite/g++.dg/lookup/using52.C
new file mode 100644
index 0000000000..bf2620714e
--- /dev/null
+++ b/gcc/testsuite/g++.dg/lookup/using52.C
@@ -0,0 +1,16 @@
+// { dg-do compile }
+// PR c++/52645
+
+class A
+{
+protected:
+  struct B {};
+};
+
+class C : A
+{
+protected:
+  using A::B;
+
+  struct D : public B {};
+};