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, 14 insertions, 0 deletions

diff --git a/src/boost/libs/hana/example/duplicate.cpp b/src/boost/libs/hana/example/duplicate.cpp
new file mode 100644
index 000000000..44737cb7c
--- /dev/null
+++ b/src/boost/libs/hana/example/duplicate.cpp
@@ -0,0 +1,14 @@
+// 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/duplicate.hpp>
+#include <boost/hana/extract.hpp>
+#include <boost/hana/lazy.hpp>
+namespace hana = boost::hana;
+
+
+int main() {
+    constexpr auto very_lazy = hana::duplicate(hana::make_lazy(3));
+    static_assert(hana::extract(hana::extract(very_lazy)) == 3, "");
+}