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Diffstat (limited to '')
-rw-r--r-- | src/boost/libs/hana/test/optional/value_or.cpp | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/src/boost/libs/hana/test/optional/value_or.cpp b/src/boost/libs/hana/test/optional/value_or.cpp new file mode 100644 index 000000000..05fa784f8 --- /dev/null +++ b/src/boost/libs/hana/test/optional/value_or.cpp @@ -0,0 +1,26 @@ +// 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 undefined { }; + +int main() { + BOOST_HANA_CONSTANT_CHECK(hana::equal( + hana::nothing.value_or(ct_eq<3>{}), + ct_eq<3>{} + )); + + BOOST_HANA_CONSTANT_CHECK(hana::equal( + hana::just(ct_eq<4>{}).value_or(undefined{}), + ct_eq<4>{} + )); +} |