diff options
Diffstat (limited to 'src/boost/libs/hana/test/optional/is_just.cpp')
-rw-r--r-- | src/boost/libs/hana/test/optional/is_just.cpp | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/src/boost/libs/hana/test/optional/is_just.cpp b/src/boost/libs/hana/test/optional/is_just.cpp new file mode 100644 index 000000000..49b1f98c7 --- /dev/null +++ b/src/boost/libs/hana/test/optional/is_just.cpp @@ -0,0 +1,16 @@ +// 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/not.hpp> +#include <boost/hana/optional.hpp> +namespace hana = boost::hana; + + +struct undefined { }; + +int main() { + BOOST_HANA_CONSTANT_CHECK(hana::is_just(hana::just(undefined{}))); + BOOST_HANA_CONSTANT_CHECK(hana::not_(hana::is_just(hana::nothing))); +} |