3 Defines `boost::hana::when` and `boost::hana::when_valid`.
5 @copyright Louis Dionne 2013-2017
6 Distributed under the Boost Software License, Version 1.0.
7 (See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt)
10 #ifndef BOOST_HANA_CORE_WHEN_HPP
11 #define BOOST_HANA_CORE_WHEN_HPP
13 #include <boost/hana/fwd/core/when.hpp>
15 #endif // !BOOST_HANA_CORE_WHEN_HPP