EQ2EMu/EQ2/source/depends/boost_1_72_0/libs/hana/test/_include/laws/product.hpp

// 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)

#ifndef BOOST_HANA_TEST_LAWS_PRODUCT_HPP
#define BOOST_HANA_TEST_LAWS_PRODUCT_HPP

#include <boost/hana/assert.hpp>
#include <boost/hana/concept/product.hpp>
#include <boost/hana/core/make.hpp>
#include <boost/hana/core/when.hpp>
#include <boost/hana/equal.hpp>
#include <boost/hana/first.hpp>
#include <boost/hana/second.hpp>

#include <laws/base.hpp>


namespace boost { namespace hana { namespace test {
    template <typename P, typename = when<true>>
    struct TestProduct : TestProduct<P, laws> {
        using TestProduct<P, laws>::TestProduct;
    };

    template <typename P>
    struct TestProduct<P, laws> {
        template <typename Elements>
        TestProduct(Elements elements) {
            foreach2(elements, [](auto x, auto y) {
                static_assert(Product<decltype(hana::make<P>(x, y))>{}, "");

                BOOST_HANA_CHECK(hana::equal(
                    hana::first(hana::make<P>(x, y)),
                    x
                ));

                BOOST_HANA_CHECK(hana::equal(
                    hana::second(hana::make<P>(x, y)),
                    y
                ));
            });
        }
    };
}}} // end namespace boost::hana::test

#endif // !BOOST_HANA_TEST_LAWS_PRODUCT_HPP