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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/utility.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_pop_back;
using L1 = V1<false>;
BOOST_TEST_TRAIT_SAME(mp_pop_back<L1>, V1<>);
using L2 = V1<false, -1, std::size_t(2)>;
BOOST_TEST_TRAIT_SAME(mp_pop_back<L2>, V1<false, -1>);
using L3 = V2<0>;
BOOST_TEST_TRAIT_SAME(mp_pop_back<L3>, V2<>);
using L4 = V2<0, 1, 2, 3, 4, 5, 6, 7, 8, 9>;
BOOST_TEST_TRAIT_SAME(mp_pop_back<L4>, V2<0, 1, 2, 3, 4, 5, 6, 7, 8>);
using boost::mp11::mp_iota_c;
using boost::mp11::mp_rename_v;
int const N = 137;
using L6 = mp_rename_v<mp_iota_c<N>, V1>;
using L7 = mp_rename_v<mp_iota_c<N-1>, V1>;
BOOST_TEST_TRAIT_SAME(mp_pop_back<L6>, L7);
using boost::mp11::mp_valid;
using L8 = V2<>;
BOOST_TEST_TRAIT_FALSE((mp_valid<mp_pop_back, L8>));
return boost::report_errors();
}
#endif
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