From d201715989ce2f110e09cd15246969f9fcae5c61 Mon Sep 17 00:00:00 2001
From: Marek Polacek <polacek@redhat.com>
Date: Fri, 10 Jan 2025 15:05:00 -0500
Subject: [PATCH] c++: add fixed test [PR118391]

Fixed by r15-6740.

	PR c++/118391

gcc/testsuite/ChangeLog:

	* g++.dg/cpp2a/lambda-uneval20.C: New test.
---
 gcc/testsuite/g++.dg/cpp2a/lambda-uneval20.C | 15 +++++++++++++++
 1 file changed, 15 insertions(+)
 create mode 100644 gcc/testsuite/g++.dg/cpp2a/lambda-uneval20.C

diff --git a/gcc/testsuite/g++.dg/cpp2a/lambda-uneval20.C b/gcc/testsuite/g++.dg/cpp2a/lambda-uneval20.C
new file mode 100644
index 000000000000..fa8b504da9db
--- /dev/null
+++ b/gcc/testsuite/g++.dg/cpp2a/lambda-uneval20.C
@@ -0,0 +1,15 @@
+// PR c++/118391
+// { dg-do compile { target c++20 } }
+
+template<typename>
+using A = int;
+
+template<typename T>
+using B = decltype([]<typename> {}.template operator()<T>());
+
+template<typename T>
+using C = A<B<T>>;
+
+C<int> x;
+
+int main() {}
-- 
2.47.2