diff options
Diffstat (limited to 'src/boost/libs/hana/test/optional/operator_arrow.cpp')
-rw-r--r-- | src/boost/libs/hana/test/optional/operator_arrow.cpp | 37 |
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 new file mode 100644 index 000000000..691d8981e --- /dev/null +++ b/src/boost/libs/hana/test/optional/operator_arrow.cpp @@ -0,0 +1,37 @@ +// 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>{} + )); +} |