From 6ed38b98456725f042e75fde7da16c60e22c08d8 Mon Sep 17 00:00:00 2001
From: Patrick Palka <ppalka@redhat.com>
Date: Fri, 21 Mar 2025 15:23:49 -0400
Subject: [PATCH] c++: add fixed test [PR119378]

Fixed by r15-123 (specifically the change to set processing_template_decl
when tsubsting UNBOUND_CLASS_TEMPLATE).

	PR c++/119378

gcc/testsuite/ChangeLog:

	* g++.dg/template/friend85.C: New test.
---
 gcc/testsuite/g++.dg/template/friend85.C | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)
 create mode 100644 gcc/testsuite/g++.dg/template/friend85.C

diff --git a/gcc/testsuite/g++.dg/template/friend85.C b/gcc/testsuite/g++.dg/template/friend85.C
new file mode 100644
index 00000000000..5cf83911193
--- /dev/null
+++ b/gcc/testsuite/g++.dg/template/friend85.C
@@ -0,0 +1,16 @@
+// PR c++/119378
+
+template<int N>
+struct A {
+  template<class T>
+  struct B;
+};
+
+template<class U>
+struct C {
+  template<int N>
+  template<class T>
+  friend class A<N>::B;
+};
+
+template struct C<int>;