1 files changed, 12 insertions, 0 deletions
diff --git a/gcc/testsuite/g++.dg/template/error37.C b/gcc/testsuite/g++.dg/template/error37.C
new file mode 100644
index 000000000..7f1f9ed78
--- /dev/null
+++ b/gcc/testsuite/g++.dg/template/error37.C
@@ -0,0 +1,12 @@
+// { dg-do compile }
+// PR C++/29388
+// We used to ICE in is_ancestor because we would use int as the context of foo
+// but that is invalid.
+
+template<int> struct A
+{
+	  typedef int T;
+	    void foo();
+};
+
+template<int N> void A<N>::T::foo() {} // { dg-error "" }