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Diffstat (limited to 'src/boost/libs/hana/example/optional/foldable.cpp')
-rw-r--r-- | src/boost/libs/hana/example/optional/foldable.cpp | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/src/boost/libs/hana/example/optional/foldable.cpp b/src/boost/libs/hana/example/optional/foldable.cpp new file mode 100644 index 000000000..21fc920c6 --- /dev/null +++ b/src/boost/libs/hana/example/optional/foldable.cpp @@ -0,0 +1,14 @@ +// 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/fold_right.hpp> +#include <boost/hana/optional.hpp> +#include <boost/hana/plus.hpp> +namespace hana = boost::hana; + + +static_assert(hana::fold_right(hana::nothing, 1, hana::plus) == 1, ""); +static_assert(hana::fold_right(hana::just(4), 1, hana::plus) == 5, ""); + +int main() { } |