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51 lines
1.7 KiB
C++
51 lines
1.7 KiB
C++
/*
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* Copyright Louis Dionne 2014
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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
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* http://www.boost.org/LICENSE_1_0.txt)
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*/
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#include <boost/hana/foldable.hpp>
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#include <boost/hana/detail/constexpr.hpp>
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#include <boost/hana/detail/static_assert.hpp>
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#include <boost/hana/integral.hpp>
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#include <boost/hana/list.hpp>
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using namespace boost::hana;
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BOOST_HANA_CONSTEXPR_LAMBDA auto foldable = list; // minimal foldable
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void test_minimum() {
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BOOST_HANA_STATIC_ASSERT(minimum(foldable(int_<0>)) == int_<0>);
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BOOST_HANA_STATIC_ASSERT(minimum(foldable(int_<0>, int_<1>)) == int_<0>);
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BOOST_HANA_STATIC_ASSERT(minimum(foldable(int_<1>, int_<0>)) == int_<0>);
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}
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void test_maximum() {
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BOOST_HANA_STATIC_ASSERT(maximum(foldable(int_<0>)) == int_<0>);
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BOOST_HANA_STATIC_ASSERT(maximum(foldable(int_<0>, int_<1>)) == int_<1>);
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BOOST_HANA_STATIC_ASSERT(maximum(foldable(int_<1>, int_<0>)) == int_<1>);
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}
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void test_sum() {
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BOOST_HANA_STATIC_ASSERT(sum(foldable()) == int_<0>);
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BOOST_HANA_STATIC_ASSERT(sum(foldable(int_<0>)) == int_<0>);
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BOOST_HANA_STATIC_ASSERT(sum(foldable(int_<0>, int_<1>)) == int_<1>);
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BOOST_HANA_STATIC_ASSERT(sum(foldable(int_<0>, int_<1>, int_<2>)) == int_<3>);
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}
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void test_product() {
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BOOST_HANA_STATIC_ASSERT(product(foldable()) == int_<1>);
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BOOST_HANA_STATIC_ASSERT(product(foldable(int_<1>)) == int_<1>);
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BOOST_HANA_STATIC_ASSERT(product(foldable(int_<1>, int_<2>)) == int_<2>);
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BOOST_HANA_STATIC_ASSERT(product(foldable(int_<1>, int_<2>, int_<3>)) == int_<6>);
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}
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int main() {
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test_minimum();
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test_maximum();
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test_sum();
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test_product();
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}
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