mirror of https://gitee.com/bigwinds/arangodb
14 lines
455 B
C++
14 lines
455 B
C++
// Copyright Louis Dionne 2013-2016
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// Distributed under the Boost Software License, Version 1.0.
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// (See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt)
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#include <boost/hana/functional/placeholder.hpp>
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#include <boost/hana/optional.hpp>
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namespace hana = boost::hana;
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static_assert(hana::maybe('x', hana::_ + 1, hana::just(1)) == 2, "");
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static_assert(hana::maybe('x', hana::_ + 1, hana::nothing) == 'x', "");
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int main() { }
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