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// Copyright 2023 Peter Dimov.
// Distributed under the Boost Software License, Version 1.0.
// https://www.boost.org/LICENSE_1_0.txt
#include <boost/mp11/algorithm.hpp>
#include <boost/mp11/list.hpp>
#include <boost/mp11/integral.hpp>
#if !defined(BOOST_MP11_HAS_TEMPLATE_AUTO)
#pragma message("Test skipped because BOOST_MP11_HAS_TEMPLATE_AUTO is not defined")
int main() {}
#else
#include <boost/core/lightweight_test_trait.hpp>
template<auto... A> struct V1 {};
template<int... I> struct V2 {};
int main()
{
using boost::mp11::mp_list;
using boost::mp11::mp_take;
using boost::mp11::mp_take_c;
using boost::mp11::mp_size_t;
{
using L1 = V1<>;
BOOST_TEST_TRAIT_SAME(mp_take_c<L1, 0>, L1);
BOOST_TEST_TRAIT_SAME(mp_take<L1, mp_size_t<0>>, L1);
using L2 = V1<false, 0, true, 1, std::size_t(2)>;
BOOST_TEST_TRAIT_SAME(mp_take_c<L2, 0>, V1<>);
BOOST_TEST_TRAIT_SAME(mp_take_c<L2, 1>, V1<false>);
BOOST_TEST_TRAIT_SAME(mp_take_c<L2, 2>, V1<false, 0>);
BOOST_TEST_TRAIT_SAME(mp_take_c<L2, 3>, V1<false, 0, true>);
BOOST_TEST_TRAIT_SAME(mp_take_c<L2, 4>, V1<false, 0, true, 1>);
BOOST_TEST_TRAIT_SAME(mp_take_c<L2, 5>, V1<false, 0, true, 1, std::size_t(2)>);
BOOST_TEST_TRAIT_SAME(mp_take<L2, mp_size_t<0>>, V1<>);
BOOST_TEST_TRAIT_SAME(mp_take<L2, mp_size_t<1>>, V1<false>);
BOOST_TEST_TRAIT_SAME(mp_take<L2, mp_size_t<2>>, V1<false, 0>);
BOOST_TEST_TRAIT_SAME(mp_take<L2, mp_size_t<3>>, V1<false, 0, true>);
BOOST_TEST_TRAIT_SAME(mp_take<L2, mp_size_t<4>>, V1<false, 0, true, 1>);
BOOST_TEST_TRAIT_SAME(mp_take<L2, mp_size_t<5>>, V1<false, 0, true, 1, std::size_t(2)>);
}
{
using L1 = V2<>;
BOOST_TEST_TRAIT_SAME(mp_take_c<L1, 0>, L1);
BOOST_TEST_TRAIT_SAME(mp_take<L1, mp_size_t<0>>, L1);
using L2 = V2<1, 2, 3, 4, 5>;
BOOST_TEST_TRAIT_SAME(mp_take_c<L2, 0>, V2<>);
BOOST_TEST_TRAIT_SAME(mp_take_c<L2, 1>, V2<1>);
BOOST_TEST_TRAIT_SAME(mp_take_c<L2, 2>, V2<1, 2>);
BOOST_TEST_TRAIT_SAME(mp_take_c<L2, 3>, V2<1, 2, 3>);
BOOST_TEST_TRAIT_SAME(mp_take_c<L2, 4>, V2<1, 2, 3, 4>);
BOOST_TEST_TRAIT_SAME(mp_take_c<L2, 5>, V2<1, 2, 3, 4, 5>);
BOOST_TEST_TRAIT_SAME(mp_take<L2, mp_size_t<0>>, V2<>);
BOOST_TEST_TRAIT_SAME(mp_take<L2, mp_size_t<1>>, V2<1>);
BOOST_TEST_TRAIT_SAME(mp_take<L2, mp_size_t<2>>, V2<1, 2>);
BOOST_TEST_TRAIT_SAME(mp_take<L2, mp_size_t<3>>, V2<1, 2, 3>);
BOOST_TEST_TRAIT_SAME(mp_take<L2, mp_size_t<4>>, V2<1, 2, 3, 4>);
BOOST_TEST_TRAIT_SAME(mp_take<L2, mp_size_t<5>>, V2<1, 2, 3, 4, 5>);
}
using boost::mp11::mp_iota_c;
using boost::mp11::mp_rename_v;
{
using L1 = mp_rename_v<mp_iota_c<71>, V1>;
using L2 = mp_rename_v<mp_iota_c<72>, V1>;
BOOST_TEST_TRAIT_SAME(mp_take_c<L2, 72>, L2);
BOOST_TEST_TRAIT_SAME(mp_take_c<L2, 71>, L1);
}
return boost::report_errors();
}
#endif
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