From 61b9a7258a7693d7f3674a5a1daf7b036ff1d382 Mon Sep 17 00:00:00 2001
From: Dimitry Andric <dim@FreeBSD.org>
Date: Sun, 6 Sep 2015 18:46:46 +0000
Subject: Import libc++ 3.7.0 release (r246257).

---
 .../dereference_const.pass.cpp                     | 57 ++++++++++++++++++++++
 1 file changed, 57 insertions(+)
 create mode 100644 test/std/experimental/optional/optional.object/optional.object.observe/dereference_const.pass.cpp

(limited to 'test/std/experimental/optional/optional.object/optional.object.observe/dereference_const.pass.cpp')

diff --git a/test/std/experimental/optional/optional.object/optional.object.observe/dereference_const.pass.cpp b/test/std/experimental/optional/optional.object/optional.object.observe/dereference_const.pass.cpp
new file mode 100644
index 0000000000000..c72a57852a327
--- /dev/null
+++ b/test/std/experimental/optional/optional.object/optional.object.observe/dereference_const.pass.cpp
@@ -0,0 +1,57 @@
+//===----------------------------------------------------------------------===//
+//
+//                     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.
+//
+//===----------------------------------------------------------------------===//
+
+// <optional>
+
+// constexpr const T& optional<T>::operator*() const;
+
+#ifdef _LIBCPP_DEBUG
+#define _LIBCPP_ASSERT(x, m) ((x) ? (void)0 : std::exit(0))
+#endif
+
+#include <experimental/optional>
+#include <type_traits>
+#include <cassert>
+
+#if _LIBCPP_STD_VER > 11
+
+using std::experimental::optional;
+
+struct X
+{
+    constexpr int test() const {return 3;}
+};
+
+struct Y
+{
+    int test() const {return 2;}
+};
+
+#endif  // _LIBCPP_STD_VER > 11
+
+int main()
+{
+#if _LIBCPP_STD_VER > 11
+    {
+        constexpr optional<X> opt(X{});
+        static_assert((*opt).test() == 3, "");
+    }
+    {
+        constexpr optional<Y> opt(Y{});
+        assert((*opt).test() == 2);
+    }
+#ifdef _LIBCPP_DEBUG
+    {
+        const optional<X> opt;
+        assert((*opt).test() == 3);
+        assert(false);
+    }
+#endif  // _LIBCPP_DEBUG
+#endif  // _LIBCPP_STD_VER > 11
+}
-- 
cgit v1.2.3