1 files changed, 38 insertions, 0 deletions
diff --git a/test/std/thread/futures/futures.promise/set_lvalue_at_thread_exit.pass.cpp b/test/std/thread/futures/futures.promise/set_lvalue_at_thread_exit.pass.cpp
new file mode 100644
index 000000000000..18f87c596a00
--- /dev/null
+++ b/test/std/thread/futures/futures.promise/set_lvalue_at_thread_exit.pass.cpp
@@ -0,0 +1,38 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// UNSUPPORTED: libcpp-has-no-threads
+
+// <future>
+
+// class promise<R>
+
+// void promise<R&>::set_value_at_thread_exit(R& r);
+
+#include <future>
+#include <memory>
+#include <cassert>
+
+int i = 0;
+
+void func(std::promise<int&> p)
+{
+    p.set_value_at_thread_exit(i);
+    i = 4;
+}
+
+int main()
+{
+    {
+        std::promise<int&> p;
+        std::future<int&> f = p.get_future();
+        std::thread(func, std::move(p)).detach();
+        assert(f.get() == 4);
+    }
+}