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, 31 insertions, 0 deletions

diff --git a/src/boost/libs/hana/example/tutorial/ext/fusion_to_hana.cpp b/src/boost/libs/hana/example/tutorial/ext/fusion_to_hana.cpp
new file mode 100644
index 000000000..8b6a334d4
--- /dev/null
+++ b/src/boost/libs/hana/example/tutorial/ext/fusion_to_hana.cpp
@@ -0,0 +1,31 @@
+// 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/for_each.hpp>
+#include <boost/hana/tuple.hpp>
+#include <boost/hana/ext/boost/fusion/vector.hpp>
+
+#include <boost/fusion/include/vector.hpp>
+
+#include <iostream>
+namespace fusion = boost::fusion;
+namespace hana = boost::hana;
+
+
+//! [main]
+// In the old code, this used to receive a Fusion sequence.
+// Now, it can be either a Hana sequence or a Fusion sequence.
+template <typename Sequence>
+void f(Sequence const& seq) {
+    hana::for_each(seq, [](auto const& element) {
+        std::cout << element << std::endl;
+    });
+}
+//! [main]
+
+
+int main() {
+    f(hana::make_tuple(1, 2, 3));
+    f(fusion::make_vector(1, 2, 3));
+}