103 lines
5.3 KiB
C++
103 lines
5.3 KiB
C++
/* Copyright 2017, Michele Santullo
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* This file is part of "duckhandy".
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*
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* "duckhandy" is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* "duckhandy" is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with "duckhandy". If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "catch.hpp"
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#include "duckhandy/int_conv.hpp"
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#include "duckhandy/string_bt.hpp"
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#include "sprout/cstring/strlen.hpp"
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#include <cstdint>
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template <typename T> using int_info_10 = dhandy::implem::int_info<T, 10>;
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template <typename T> using int_info_16 = dhandy::implem::int_info<T, 16>;
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template <typename T> using int_info_2 = dhandy::implem::int_info<T, 2>;
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TEST_CASE ("Check int to char array conversions", "[s2i][int_conv]") {
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using dhandy::int_to_ary;
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using dhandy::bt::string;
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using dhandy::bt::make_string;
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using sprout::strlen;
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CHECK(int_info_10<uint8_t>::max_len == 3);
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CHECK(int_info_10<uint16_t>::max_len == 5);
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CHECK(int_info_10<uint32_t>::max_len == 10);
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CHECK(int_info_10<int8_t>::max_len == 4);
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CHECK(int_info_10<int16_t>::max_len == 6);
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CHECK(int_info_10<int32_t>::max_len == 11);
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CHECK(int_info_16<uint8_t>::max_len == 2);
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CHECK(int_info_16<uint16_t>::max_len == 4);
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CHECK(int_info_16<uint32_t>::max_len == 8);
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CHECK(int_info_16<int8_t>::max_len == 2);
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CHECK(int_info_16<int16_t>::max_len == 4);
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CHECK(int_info_16<int32_t>::max_len == 8);
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CHECK(int_info_2<uint8_t>::max_len == 8);
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CHECK(int_info_2<uint16_t>::max_len == 16);
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CHECK(int_info_2<uint32_t>::max_len == 32);
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CHECK(int_info_2<int8_t>::max_len == 8);
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CHECK(int_info_2<int16_t>::max_len == 16);
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CHECK(int_info_2<int32_t>::max_len == 32);
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static_assert(int_to_ary(5)[0] == '5', "Algorithm error");
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static_assert(string<strlen(int_to_ary(10).data()) + 1>(int_to_ary(10).data()) == make_string("10"), "Algorithm error");
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static_assert(string<strlen(int_to_ary(101).data()) + 1>(int_to_ary(101).data()) == make_string("101"), "Algorithm error");
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static_assert(string<strlen(int_to_ary<uint16_t>(0xAB12).data()) + 1>(int_to_ary<uint16_t>(0xAB12).data()) == make_string("43794"), "Algorithm error");
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static_assert(int_info_10<int16_t>::is_signed == true, "Wrong sign detection");
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static_assert(string<strlen(int_to_ary<int16_t>(0xAB12).data()) + 1>(int_to_ary<int16_t>(0xAB12).data()) == make_string("-21742"), "Algorithm error");
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CHECK(to_string_view(int_to_ary<int64_t>(0x123456789A)) == "78187493530");
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CHECK(to_string_view(int_to_ary<int64_t>(-1)) == "-1");
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CHECK(to_string_view(int_to_ary<int64_t>(0x1000000000000000)) == "1152921504606846976");
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CHECK(to_string_view(int_to_ary<int64_t>(0xF000000000000000)) == "-1152921504606846976");
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CHECK(to_string_view(int_to_ary<uint16_t, 16>(0xFFFF)) == "ffff");
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CHECK(to_string_view(int_to_ary<uint16_t, 16>(0xCACA)) == "caca");
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CHECK(to_string_view(int_to_ary<uint16_t, 16>(0x10)) == "10");
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CHECK(to_string_view(int_to_ary<int16_t, 16>(0x10)) == "10");
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CHECK(to_string_view(int_to_ary<int16_t, 16>(0xF000)) == "f000");
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CHECK(to_string_view(int_to_ary<uint16_t, 16>(0xFEFE)) == "fefe");
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CHECK(to_string_view(int_to_ary<int16_t, 16>(0xFEFE)) == "fefe");
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CHECK(to_string_view(int_to_ary<uint32_t, 8>(0423)) == "423");
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CHECK(to_string_view(int_to_ary<uint32_t, 8>(0777)) == "777");
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CHECK(to_string_view(int_to_ary<int32_t, 8>(0)) == "0");
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CHECK(to_string_view(int_to_ary<uint32_t, 8>(0)) == "0");
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CHECK(to_string_view(int_to_ary<int32_t, 2>(0)) == "0");
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CHECK(to_string_view(int_to_ary<uint32_t, 2>(0)) == "0");
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CHECK(to_string_view(int_to_ary<int32_t, 16>(0)) == "0");
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CHECK(to_string_view(int_to_ary<uint32_t, 16>(0)) == "0");
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CHECK(to_string_view(int_to_ary<int32_t, 10>(0)) == "0");
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CHECK(to_string_view(int_to_ary<uint32_t, 10>(0)) == "0");
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CHECK(to_string_view(int_to_ary<bool, 8>(false)) == "0");
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CHECK(to_string_view(int_to_ary<bool, 8>(true)) == "1");
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CHECK(to_string_view(int_to_ary<bool, 10>(false)) == "0");
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CHECK(to_string_view(int_to_ary<bool, 10>(true)) == "1");
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CHECK(to_string_view(int_to_ary<uint8_t, 2>(0b10101010)) == "10101010");
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CHECK(to_string_view(int_to_ary<int8_t, 2>(0b10101010)) == "10101010");
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CHECK(to_string_view(int_to_ary<uint8_t, 2>(0b11111111)) == "11111111");
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CHECK(to_string_view(int_to_ary<int8_t, 2>(0b11111111)) == "11111111");
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CHECK(to_string_view(int_to_ary<uint16_t, 2>(0b111100001111)) == "111100001111");
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CHECK(to_string_view(int_to_ary<int16_t, 2>(0b111100001111)) == "111100001111");
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CHECK(to_string_view(int_to_ary<int64_t, 36>(9223372036854775807)) == "1y2p0ij32e8e7");
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CHECK(to_string_view(int_to_ary<int64_t, 36>(0x8000000000000001)) == "1y2p0ij32e8e9");
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#if defined(__GNUC__)
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static_assert(std::is_integral<__int128_t>::value, "Warning, int128 won't pickup the optimized base 10 conversion path");
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__int128_t num = 10000000000000000000U;
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CHECK(to_string_view(int_to_ary<__int128_t, 10>(num * 100)) == "1000000000000000000000");
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num = 0xFFFFFFFFFFFFFFFF;
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CHECK(to_string_view(int_to_ary<__int128_t, 16>(num * 0x10000 + 0xffff)) == "ffffffffffffffffffff");
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#endif
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}
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