/*
@copyright Louis Dionne 2014
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/detail/assert.hpp>
#include <boost/hana/detail/constexpr.hpp>
#include <boost/hana/ext/std/integral_constant.hpp>
#include <boost/hana/foreign.hpp>
#include <boost/hana/maybe.hpp>
#include <boost/hana/tuple.hpp>
#include <boost/hana/type.hpp>
using namespace boost::hana;


int main() {
    {
        //! [find]
        BOOST_HANA_CONSTEXPR_ASSERT(find(tuple(1.0, 2, '3'), trait_<std::is_integral>) == just(2));
        BOOST_HANA_CONSTANT_ASSERT(find(tuple(1.0, 2, '3'), trait_<std::is_class>) == nothing);
        //! [find]
    }
}