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/**
* MIT License
*
* Copyright (c) 2017 Thibaut Goetghebuer-Planchon <tessil@gmx.com>
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include <tsl/sparse_hash.h>
#include <boost/test/unit_test.hpp>
#include <cstdint>
#include <limits>
BOOST_AUTO_TEST_SUITE(test_popcount)
BOOST_AUTO_TEST_CASE(test_popcount_1) {
std::uint32_t value = 0;
BOOST_CHECK_EQUAL(tsl::detail_popcount::popcount(value), 0);
value = 1;
BOOST_CHECK_EQUAL(tsl::detail_popcount::popcount(value), 1);
value = 2;
BOOST_CHECK_EQUAL(tsl::detail_popcount::popcount(value), 1);
value = 294967496;
BOOST_CHECK_EQUAL(tsl::detail_popcount::popcount(value), 12);
value = std::numeric_limits<std::uint32_t>::max();
BOOST_CHECK_EQUAL(tsl::detail_popcount::popcount(value), 32);
}
BOOST_AUTO_TEST_CASE(test_popcountll_1) {
std::uint64_t value = 0;
BOOST_CHECK_EQUAL(tsl::detail_popcount::popcountll(value), 0);
value = 1;
BOOST_CHECK_EQUAL(tsl::detail_popcount::popcountll(value), 1);
value = 2;
BOOST_CHECK_EQUAL(tsl::detail_popcount::popcountll(value), 1);
value = 294967496;
BOOST_CHECK_EQUAL(tsl::detail_popcount::popcountll(value), 12);
value = 8446744073709551416ull;
BOOST_CHECK_EQUAL(tsl::detail_popcount::popcountll(value), 40);
value = std::numeric_limits<std::uint64_t>::max();
BOOST_CHECK_EQUAL(tsl::detail_popcount::popcountll(value), 64);
}
BOOST_AUTO_TEST_CASE(test_fallback_popcount_1) {
std::uint32_t value = 0;
BOOST_CHECK_EQUAL(tsl::detail_popcount::fallback_popcount(value), 0);
value = 1;
BOOST_CHECK_EQUAL(tsl::detail_popcount::fallback_popcount(value), 1);
value = 2;
BOOST_CHECK_EQUAL(tsl::detail_popcount::fallback_popcount(value), 1);
value = 294967496;
BOOST_CHECK_EQUAL(tsl::detail_popcount::fallback_popcount(value), 12);
value = std::numeric_limits<std::uint32_t>::max();
BOOST_CHECK_EQUAL(tsl::detail_popcount::fallback_popcount(value), 32);
}
BOOST_AUTO_TEST_CASE(test_fallback_popcountll_1) {
std::uint64_t value = 0;
BOOST_CHECK_EQUAL(tsl::detail_popcount::fallback_popcountll(value), 0);
value = 1;
BOOST_CHECK_EQUAL(tsl::detail_popcount::fallback_popcountll(value), 1);
value = 2;
BOOST_CHECK_EQUAL(tsl::detail_popcount::fallback_popcountll(value), 1);
value = 294967496;
BOOST_CHECK_EQUAL(tsl::detail_popcount::fallback_popcountll(value), 12);
value = 8446744073709551416ull;
BOOST_CHECK_EQUAL(tsl::detail_popcount::fallback_popcountll(value), 40);
value = std::numeric_limits<std::uint64_t>::max();
BOOST_CHECK_EQUAL(tsl::detail_popcount::fallback_popcountll(value), 64);
}
BOOST_AUTO_TEST_SUITE_END()
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