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diff --git a/src/boost/libs/hana/example/ext/std/tuple.cpp b/src/boost/libs/hana/example/ext/std/tuple.cpp
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+++ b/src/boost/libs/hana/example/ext/std/tuple.cpp
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+// 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/assert.hpp>
+#include <boost/hana/equal.hpp>
+#include <boost/hana/ext/std/tuple.hpp>
+#include <boost/hana/integral_constant.hpp>
+#include <boost/hana/transform.hpp>
+
+#include <string>
+#include <tuple>
+namespace hana = boost::hana;
+
+
+struct Fish { std::string name; };
+struct Cat  { std::string name; };
+struct Dog  { std::string name; };
+
+int main() {
+    std::tuple<Fish, Cat, Dog> animals{{"Nemo"}, {"Garfield"}, {"Snoopy"}};
+    hana::front(animals).name = "Moby Dick";
+
+    auto names = hana::transform(animals, [](auto a) {
+      return a.name;
+    });
+
+    BOOST_HANA_RUNTIME_CHECK(hana::equal(
+        names,
+        std::make_tuple("Moby Dick", "Garfield", "Snoopy")
+    ));
+}