1 files changed, 10 insertions, 0 deletions
diff --git a/gcc/testsuite/g++.dg/parse/struct-3.C b/gcc/testsuite/g++.dg/parse/struct-3.C
new file mode 100644
index 000000000..8e73ce4f0
--- /dev/null
+++ b/gcc/testsuite/g++.dg/parse/struct-3.C
@@ -0,0 +1,10 @@
+// Origin: Volker Reichelt <reichelt@igpm.rwth-aachen.de>
+// PR c++/18731
+
+struct A
+{
+    struct B;
+    typedef B C;
+};
+
+struct A::C {}; // { dg-error "invalid class name" }