From f36202620b428c45a1c8d91743727c9313424fb2 Mon Sep 17 00:00:00 2001
From: Dimitry Andric <dim@FreeBSD.org>
Date: Sat, 28 Jul 2018 11:07:56 +0000
Subject: Vendor import of libc++ trunk r338150:
 https://llvm.org/svn/llvm-project/libcxx/trunk@338150

---
 .../func.wrap.func.con/move_reentrant.pass.cpp     | 46 ++++++++++++++++++++++
 1 file changed, 46 insertions(+)
 create mode 100644 test/std/utilities/function.objects/func.wrap/func.wrap.func/func.wrap.func.con/move_reentrant.pass.cpp

(limited to 'test/std/utilities/function.objects/func.wrap/func.wrap.func/func.wrap.func.con/move_reentrant.pass.cpp')

diff --git a/test/std/utilities/function.objects/func.wrap/func.wrap.func/func.wrap.func.con/move_reentrant.pass.cpp b/test/std/utilities/function.objects/func.wrap/func.wrap.func/func.wrap.func.con/move_reentrant.pass.cpp
new file mode 100644
index 000000000000..0813c48f322e
--- /dev/null
+++ b/test/std/utilities/function.objects/func.wrap/func.wrap.func/func.wrap.func.con/move_reentrant.pass.cpp
@@ -0,0 +1,46 @@
+//===----------------------------------------------------------------------===//
+//
+//                     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.
+//
+//===----------------------------------------------------------------------===//
+
+// <functional>
+
+// class function<R(ArgTypes...)>
+
+// function& operator=(function &&);
+
+#include <functional>
+#include <cassert>
+
+#include "test_macros.h"
+
+struct A
+{
+  static std::function<void()> global;
+  static bool cancel;
+
+  ~A() {
+    DoNotOptimize(cancel);
+    if (cancel)
+      global = std::function<void()>(nullptr);
+  }
+  void operator()() {}
+};
+
+std::function<void()> A::global;
+bool A::cancel = false;
+
+int main()
+{
+  A::global = A();
+  assert(A::global.target<A>());
+
+  // Check that we don't recurse in A::~A().
+  A::cancel = true;
+  A::global = std::function<void()>(nullptr);
+  assert(!A::global.target<A>());
+}
-- 
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