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-rw-r--r--src/boost/libs/hana/test/optional/operator_arrow.cpp37
1 files changed, 37 insertions, 0 deletions
diff --git a/src/boost/libs/hana/test/optional/operator_arrow.cpp b/src/boost/libs/hana/test/optional/operator_arrow.cpp
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+++ b/src/boost/libs/hana/test/optional/operator_arrow.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/optional.hpp>
+
+#include <laws/base.hpp>
+namespace hana = boost::hana;
+using hana::test::ct_eq;
+
+
+struct object {
+ ct_eq<3> member;
+};
+
+int main() {
+ auto lvalue = hana::just(object{});
+ ct_eq<3>& ref = lvalue->member;
+ BOOST_HANA_CONSTANT_CHECK(hana::equal(
+ ref,
+ ct_eq<3>{}
+ ));
+
+ auto const const_lvalue = hana::just(object{});
+ ct_eq<3> const& const_ref = const_lvalue->member;
+ BOOST_HANA_CONSTANT_CHECK(hana::equal(
+ const_ref,
+ ct_eq<3>{}
+ ));
+
+ BOOST_HANA_CONSTANT_CHECK(hana::equal(
+ hana::just(object{})->member,
+ ct_eq<3>{}
+ ));
+}