Adding upstream version 16.2.11+ds.upstream/16.2.11+dsupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 55 insertions, 0 deletions

diff --git a/src/boost/libs/hana/test/tuple/move_only.cpp b/src/boost/libs/hana/test/tuple/move_only.cpp
new file mode 100644
index 000000000..3f78316cc
--- /dev/null
+++ b/src/boost/libs/hana/test/tuple/move_only.cpp
@@ -0,0 +1,55 @@
+// Copyright Louis Dionne 2013-2017
+// Distributed under the Boost Software License, Version 1.0.
+// (See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt)
+
+#include <boost/hana/at.hpp>
+#include <boost/hana/back.hpp>
+#include <boost/hana/front.hpp>
+#include <boost/hana/tuple.hpp>
+
+#include <utility>
+namespace hana = boost::hana;
+
+
+// This test checks for move-only friendliness and reference semantics.
+
+struct MoveOnly {
+    MoveOnly() = default;
+    MoveOnly(MoveOnly&&) = default;
+    MoveOnly& operator=(MoveOnly&&) = default;
+
+    MoveOnly(MoveOnly const&) = delete;
+    MoveOnly& operator=(MoveOnly const&) = delete;
+};
+
+int main() {
+    {
+        auto xs = hana::make_tuple(MoveOnly{});
+        auto by_val = [](auto) { };
+
+        by_val(std::move(xs));
+        by_val(hana::front(std::move(xs)));
+        by_val(hana::at_c<0>(std::move(xs)));
+        by_val(hana::back(std::move(xs)));
+    }
+
+    {
+        auto const& xs = hana::make_tuple(MoveOnly{});
+        auto by_const_ref = [](auto const&) { };
+
+        by_const_ref(xs);
+        by_const_ref(hana::front(xs));
+        by_const_ref(hana::at_c<0>(xs));
+        by_const_ref(hana::back(xs));
+    }
+
+    {
+        auto xs = hana::make_tuple(MoveOnly{});
+        auto by_ref = [](auto&) { };
+
+        by_ref(xs);
+        by_ref(hana::front(xs));
+        by_ref(hana::at_c<0>(xs));
+        by_ref(hana::back(xs));
+    }
+}