1 files changed, 24 insertions, 0 deletions
diff --git a/test/std/atomics/atomics.flag/copy_assign.fail.cpp b/test/std/atomics/atomics.flag/copy_assign.fail.cpp
new file mode 100644
index 000000000000..762e3a895441
--- /dev/null
+++ b/test/std/atomics/atomics.flag/copy_assign.fail.cpp
@@ -0,0 +1,24 @@
+//===----------------------------------------------------------------------===//
+//
+//                     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.
+//
+//===----------------------------------------------------------------------===//
+
+// <atomic>
+
+// struct atomic_flag
+
+// atomic_flag& operator=(const atomic_flag&) = delete;
+
+#include <atomic>
+#include <cassert>
+
+int main()
+{
+    std::atomic_flag f0;
+    std::atomic_flag f;
+    f = f0;
+}