1 files changed, 121 insertions, 0 deletions
diff --git a/test/std/utilities/utility/forward/move.pass.cpp b/test/std/utilities/utility/forward/move.pass.cpp
new file mode 100644
index 000000000000..e2edc2a2afad
--- /dev/null
+++ b/test/std/utilities/utility/forward/move.pass.cpp
@@ -0,0 +1,121 @@
+//===----------------------------------------------------------------------===//
+//
+//                     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.
+//
+//===----------------------------------------------------------------------===//
+
+// test move
+
+// UNSUPPORTED: c++98, c++03
+
+#include <utility>
+#include <type_traits>
+#include <cassert>
+
+#include "test_macros.h"
+
+class move_only
+{
+    move_only(const move_only&);
+    move_only& operator=(const move_only&);
+public:
+    move_only(move_only&&) {}
+    move_only& operator=(move_only&&) {return *this;}
+
+    move_only() {}
+};
+
+move_only source() {return move_only();}
+const move_only csource() {return move_only();}
+
+void test(move_only) {}
+
+int x = 42;
+const int& cx = x;
+
+template <class QualInt>
+QualInt get() noexcept { return static_cast<QualInt>(x); }
+
+
+int copy_ctor = 0;
+int move_ctor = 0;
+
+struct A {
+    A() {}
+    A(const A&) {++copy_ctor;}
+    A(A&&) {++move_ctor;}
+    A& operator=(const A&) = delete;
+};
+
+constexpr bool test_constexpr_move() {
+#if TEST_STD_VER > 11
+    int y = 42;
+    const int cy = y;
+    return std::move(y) == 42
+        && std::move(cy) == 42
+        && std::move(static_cast<int&&>(y)) == 42
+        && std::move(static_cast<int const&&>(y)) == 42;
+#else
+    return true;
+#endif
+}
+
+int main()
+{
+    { // Test return type and noexcept.
+        static_assert(std::is_same<decltype(std::move(x)), int&&>::value, "");
+        static_assert(noexcept(std::move(x)), "");
+        static_assert(std::is_same<decltype(std::move(cx)), const int&&>::value, "");
+        static_assert(noexcept(std::move(cx)), "");
+        static_assert(std::is_same<decltype(std::move(42)), int&&>::value, "");
+        static_assert(noexcept(std::move(42)), "");
+        static_assert(std::is_same<decltype(std::move(get<const int&&>())), const int&&>::value, "");
+        static_assert(noexcept(std::move(get<int const&&>())), "");
+    }
+    { // test copy and move semantics
+        A a;
+        const A ca = A();
+
+        assert(copy_ctor == 0);
+        assert(move_ctor == 0);
+
+        A a2 = a;
+        assert(copy_ctor == 1);
+        assert(move_ctor == 0);
+
+        A a3 = std::move(a);
+        assert(copy_ctor == 1);
+        assert(move_ctor == 1);
+
+        A a4 = ca;
+        assert(copy_ctor == 2);
+        assert(move_ctor == 1);
+
+        A a5 = std::move(ca);
+        assert(copy_ctor == 3);
+        assert(move_ctor == 1);
+    }
+    { // test on a move only type
+        move_only mo;
+        test(std::move(mo));
+        test(source());
+    }
+#if TEST_STD_VER > 11
+    {
+        constexpr int y = 42;
+        static_assert(std::move(y) == 42, "");
+        static_assert(test_constexpr_move(), "");
+    }
+#endif
+#if TEST_STD_VER == 11 && defined(_LIBCPP_VERSION)
+    // Test that std::forward is constexpr in C++11. This is an extension
+    // provided by both libc++ and libstdc++.
+    {
+        constexpr int y = 42;
+        static_assert(std::move(y) == 42, "");
+    }
+#endif
+}