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diff --git a/src/boost/libs/hana/example/string/to.cpp b/src/boost/libs/hana/example/string/to.cpp
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+++ b/src/boost/libs/hana/example/string/to.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/core/to.hpp>
+#include <boost/hana/string.hpp>
+namespace hana = boost::hana;
+
+
+constexpr auto str = hana::string_c<'h', 'i'>;
+
+// using c_str()
+constexpr char const* s1 = str.c_str();
+static_assert(s1[0] == 'h' && s1[1] == 'i' && s1[2] == '\0', "");
+
+// using hana::to
+constexpr char const* s2 = hana::to<char const*>(str);
+static_assert(s2[0] == 'h' && s2[1] == 'i' && s2[2] == '\0', "");
+
+int main() { }