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hana/test/foldable/product.cpp

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C++

/*
@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/foldable.hpp>
#include <boost/hana/detail/static_assert.hpp>
#include <boost/hana/integral.hpp>
#include "minimal_foldable.hpp"
using namespace boost::hana;
int main() {
BOOST_HANA_STATIC_ASSERT(product(foldable()) == int_<1>);
BOOST_HANA_STATIC_ASSERT(product(foldable(int_<2>)) == int_<2>);
BOOST_HANA_STATIC_ASSERT(product(foldable(int_<2>, int_<3>)) == int_<2 * 3>);
BOOST_HANA_STATIC_ASSERT(product(foldable(int_<2>, int_<3>, int_<4>)) == int_<2 * 3 * 4>);
BOOST_HANA_STATIC_ASSERT(product(foldable(int_<2>, int_<3>, int_<4>, int_<5>)) == int_<2 * 3 * 4 * 5>);
BOOST_HANA_STATIC_ASSERT(product(foldable(2)) == 2);
BOOST_HANA_STATIC_ASSERT(product(foldable(2, 3)) == 2 * 3);
BOOST_HANA_STATIC_ASSERT(product(foldable(2, 3, 4)) == 2 * 3 * 4);
BOOST_HANA_STATIC_ASSERT(product(foldable(2, 3, 4, 5)) == 2 * 3 * 4 * 5);
}