text: ﻿/******************************************************************************
  The MIT License(MIT)
  
  Embedded Template Library.
  https://github.com/ETLCPP/etl
  https://www.etlcpp.com
  
  Copyright(c) 2014 jwellbelove
  
  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 "unit_test_framework.h"
  
  #include <limits>
  #include <type_traits>
  #include <bitset>
  
  #include "etl/bitset.h"
  
  namespace
  {
    SUITE(test_bitset)
    {
      //*************************************************************************
      TEST(test_constructor)
      {
        std::bitset<60> compare;
        etl::bitset<60> data;
  
        CHECK_EQUAL(compare.size(),  data.size());
        CHECK_EQUAL(compare.count(), data.count());
  
        for (size_t i = 0UL; i < data.size(); ++i)
        {
          CHECK_EQUAL(compare.test(i), data.test(i));
        }
      }
  
      //*************************************************************************
      TEST(test_construct_from_value)
      {
        std::bitset<60> compare(0x123456731234567ULL);
        etl::bitset<60> data(0x123456731234567ULL);
  
        CHECK_EQUAL(compare.size(),  data.size());
        CHECK_EQUAL(compare.count(), data.count());
  
        for (size_t i = 0UL; i < data.size(); ++i)
        {
          CHECK_EQUAL(compare.test(i), data.test(i));
        }
      }
  
      //*************************************************************************
      TEST(test_construct_from_excess_value)
      {
        std::bitset<60> compare(0x8765432187654321ULL);
        etl::bitset<60> data(0x8765432187654321ULL);
  
        CHECK_EQUAL(compare.size(),  data.size());
        CHECK_EQUAL(compare.count(), data.count());
  
        for (size_t i = 0UL; i < data.size(); ++i)
        {
          CHECK_EQUAL(compare.test(i), data.test(i));
        }
      }
  
      //*************************************************************************
      TEST(test_construct_from_string)
      {
        std::bitset<60> compare("110001001000110100010101100111001100010010001101000101011001");
        etl::bitset<60> data("110001001000110100010101100111001100010010001101000101011001");
  
        CHECK_EQUAL(compare.size(),  data.size());
        CHECK_EQUAL(compare.count(), data.count());
  
        for (size_t i = 0UL; i < data.size(); ++i)
        {
          CHECK_EQUAL(compare.test(i), data.test(i));
        }
      }
  
      //*************************************************************************
      TEST(test_construct_from_excess_string)
      {
        std::bitset<60> compare("110001001000110100010101100111001100010010001101000101011001111100001");
        etl::bitset<60> data("110001001000110100010101100111001100010010001101000101011001111100001");
  
        CHECK_EQUAL(compare.size(),  data.size());
        CHECK_EQUAL(compare.count(), data.count());
        CHECK_EQUAL(compare.none(),  data.none());
        CHECK_EQUAL(compare.any(),   data.any());
        CHECK_EQUAL(compare.all(),   data.all());
  
        for (size_t i = 0UL; i < data.size(); ++i)
        {
          CHECK_EQUAL(compare.test(i), data.test(i));
        }
      }
  
      //*************************************************************************
      TEST(test_set)
      {
        std::bitset<60> compare;
        etl::bitset<60> data;
  
        compare.set();
        data.set();
  
        CHECK_EQUAL(compare.size(),  data.size());
        CHECK_EQUAL(compare.count(), data.count());
        CHECK_EQUAL(compare.none(),  data.none());
        CHECK_EQUAL(compare.any(),   data.any());
        CHECK_EQUAL(compare.all(),   data.all());
  
        for (size_t i = 0UL; i < data.size(); ++i)
        {
          CHECK_EQUAL(compare.test(i), data.test(i));
        }
      }
  
      //*************************************************************************
      TEST(test_base_set)
      {
        std::bitset<60> compare;
        etl::bitset<60> data;
  
        etl::ibitset& idata = data;
  
        compare.set();
        idata.set();
  
        CHECK_EQUAL(compare.size(),  idata.size());
        CHECK_EQUAL(compare.count(), idata.count());
        CHECK_EQUAL(compare.none(),  idata.none());
        CHECK_EQUAL(compare.any(),   idata.any());
        CHECK_EQUAL(compare.all(),   idata.all());
  
        for (size_t i = 0UL; i < data.size(); ++i)
        {
          CHECK_EQUAL(compare.test(i), idata.test(i));
        }
      }
  
      //*************************************************************************
      TEST(test_string_set)
      {
        std::bitset<60> compare("110001001000110100010101100111001100010010001101000101011001");
        etl::bitset<60> data;
  
        data.set("110001001000110100010101100111001100010010001101000101011001");
  
        CHECK_EQUAL(compare.size(), data.size());
        CHECK_EQUAL(compare.count(), data.count());
        CHECK_EQUAL(compare.none(), data.none());
        CHECK_EQUAL(compare.any(), data.any());
        CHECK_EQUAL(compare.all(), data.all());
  
        for (size_t i = 0UL; i < data.size(); ++i)
        {
          CHECK_EQUAL(compare.test(i), data.test(i));
        }
      }
  
      //*************************************************************************
      TEST(test_from_string)
      {
        std::bitset<60> compare("110001001000110100010101100111001100010010001101000101011001");
        etl::bitset<60> data;
  
        data.from_string("110001001000110100010101100111001100010010001101000101011001");
  
        CHECK_EQUAL(compare.size(), data.size());
        CHECK_EQUAL(compare.count(), data.count());
        CHECK_EQUAL(compare.none(), data.none());
        CHECK_EQUAL(compare.any(), data.any());
        CHECK_EQUAL(compare.all(), data.all());
  
        for (size_t i = 0UL; i < data.size(); ++i)
        {
          CHECK_EQUAL(compare.test(i), data.test(i));
        }
      }
  
      //*************************************************************************
      TEST(test_from_wstring)
      {
        std::bitset<60> compare("110001001000110100010101100111001100010010001101000101011001");
        etl::bitset<60> data;
  
        data.from_string(L"110001001000110100010101100111001100010010001101000101011001");
  
        CHECK_EQUAL(compare.size(), data.size());
        CHECK_EQUAL(compare.count(), data.count());
        CHECK_EQUAL(compare.none(), data.none());
        CHECK_EQUAL(compare.any(), data.any());
        CHECK_EQUAL(compare.all(), data.all());
  
        for (size_t i = 0UL; i < data.size(); ++i)
        {
          CHECK_EQUAL(compare.test(i), data.test(i));
        }
      }
  
      //*************************************************************************
      TEST(test_from_u16string)
      {
        std::bitset<60> compare("110001001000110100010101100111001100010010001101000101011001");
        etl::bitset<60> data;
  
        data.from_string(u"110001001000110100010101100111001100010010001101000101011001");
  
        CHECK_EQUAL(compare.size(), data.size());
        CHECK_EQUAL(compare.count(), data.count());
        CHECK_EQUAL(compare.none(), data.none());
        CHECK_EQUAL(compare.any(), data.any());
        CHECK_EQUAL(compare.all(), data.all());
  
        for (size_t i = 0UL; i < data.size(); ++i)
        {
          CHECK_EQUAL(compare.test(i), data.test(i));
        }
      }
  
      //*************************************************************************
      TEST(test_from_u32string)
      {
        std::bitset<60> compare("110001001000110100010101100111001100010010001101000101011001");
        etl::bitset<60> data;
  
        data.from_string(U"110001001000110100010101100111001100010010001101000101011001");
  
        CHECK_EQUAL(compare.size(), data.size());
        CHECK_EQUAL(compare.count(), data.count());
        CHECK_EQUAL(compare.none(), data.none());
        CHECK_EQUAL(compare.any(), data.any());
        CHECK_EQUAL(compare.all(), data.all());
  
        for (size_t i = 0UL; i < data.size(); ++i)
        {
          CHECK_EQUAL(compare.test(i), data.test(i));
        }
      }
  
      //*************************************************************************
      TEST(test_value_u8_min)
      {
        etl::bitset<8> data("00000000");
        uint8_t value = data.value<uint8_t>();
  
        CHECK_EQUAL(std::numeric_limits<uint8_t>::min(), value);
      }
  
      //*************************************************************************
      TEST(test_value_u8_max)
      {
        etl::bitset<8> data("11111111");
        uint8_t value = data.value<uint8_t>();
  
        CHECK_EQUAL(std::numeric_limits<uint8_t>::max(), value);
      }
  
      //*************************************************************************
      TEST(test_value_s8_min)
      {
        etl::bitset<8> data("10000000");
        int8_t value = data.value<int8_t>();
  
        CHECK_EQUAL(std::numeric_limits<int8_t>::min(), value);
      }
  
      //*************************************************************************
      TEST(test_value_s8_max)
      {
        etl::bitset<8> data("01111111");
        int8_t value = data.value<int8_t>();
  
        CHECK_EQUAL(std::numeric_limits<int8_t>::max(), value);
      }
  
      //*************************************************************************
      TEST(test_value_u16_min)
      {
        etl::bitset<16> data("0000000000000000");
        uint16_t value = data.value<uint16_t>();
  
        CHECK_EQUAL(std::numeric_limits<uint16_t>::min(), value);
      }
  
      //*************************************************************************
      TEST(test_value_u16_max)
      {
        etl::bitset<16> data("1111111111111111");
        uint16_t value = data.value<uint16_t>();
  
        CHECK_EQUAL(std::numeric_limits<uint16_t>::max(), value);
      }
  
      //*************************************************************************
      TEST(test_value_s16_min)
      {
        etl::bitset<16> data("1000000000000000");
        int16_t value = data.value<int16_t>();
  
        CHECK_EQUAL(std::numeric_limits<int16_t>::min(), value);
      }
  
      //*************************************************************************
      TEST(test_value_s16_max)
      {
        etl::bitset<16> data("0111111111111111");
        int16_t value = data.value<int16_t>();
  
        CHECK_EQUAL(std::numeric_limits<int16_t>::max(), value);
      }
  
      //*************************************************************************
      TEST(test_value_u32_min)
      {
        etl::bitset<32> data("00000000000000000000000000000000");
        uint32_t value = data.value<uint32_t>();
  
        CHECK_EQUAL(std::numeric_limits<uint32_t>::min(), value);
      }
  
      //*************************************************************************
      TEST(test_value_u32_max)
      {
        etl::bitset<32> data("11111111111111111111111111111111");
        uint32_t value = data.value<uint32_t>();
  
        CHECK_EQUAL(std::numeric_limits<uint32_t>::max(), value);
      }
  
      //*************************************************************************
      TEST(test_value_s32_min)
      {
        etl::bitset<32> data("10000000000000000000000000000000");
        int32_t value = data.value<int32_t>();
  
        CHECK_EQUAL(std::numeric_limits<int32_t>::min(), value);
      }
  
      //*************************************************************************
      TEST(test_value_s32_max)
      {
        etl::bitset<32> data("01111111111111111111111111111111");
        int32_t value = data.value<int32_t>();
  
        CHECK_EQUAL(std::numeric_limits<int32_t>::max(), value);
      }
  
      //*************************************************************************
      TEST(test_value_u64_min)
      {
        etl::bitset<64> data("0000000000000000000000000000000000000000000000000000000000000000");
        uint64_t value = data.value<uint64_t>();
  
        CHECK_EQUAL(std::numeric_limits<uint64_t>::min(), value);
      }
  
      //*************************************************************************
      TEST(test_value_u64_max)
      {
        etl::bitset<64> data("1111111111111111111111111111111111111111111111111111111111111111");
        uint64_t value = data.value<uint64_t>();
  
        CHECK_EQUAL(std::numeric_limits<uint64_t>::max(), value);
      }
  
      //*************************************************************************
      TEST(test_value_s64_min)
      {
        etl::bitset<64> data("1000000000000000000000000000000000000000000000000000000000000000");
        int64_t value = data.value<int64_t>();
  
        CHECK_EQUAL(std::numeric_limits<int64_t>::min(), value);
      }
  
      //*************************************************************************
      TEST(test_value_s64_max)
      {
        etl::bitset<64> data("0111111111111111111111111111111111111111111111111111111111111111");
        int64_t value = data.value<int64_t>();
  
        CHECK_EQUAL(std::numeric_limits<int64_t>::max(), value);
      }
  
      //*************************************************************************
      TEST(test_value_type_too_small)
      {
        etl::bitset<60> data("110001001000110100010101100111001100010010001101000101011001");
  
        etl::ibitset& idata= data;
  
        uint32_t value = 0U;
  
        CHECK_THROW(value = idata.value<uint32_t>(), etl::bitset_type_too_small);
  
        CHECK_EQUAL(0U, value);
      }
  
      //*************************************************************************
      TEST(test_position_set)
      {
        std::bitset<60> compare;
        etl::bitset<60> data;
  
        for (size_t i = 0UL; i < data.size(); ++i)
        {
          compare.set(i, (i % 2) == 0);
          data.set(i, (i % 2) == 0);
        }
  
        CHECK_EQUAL(compare.size(),  data.size());
        CHECK_EQUAL(compare.count(), data.count());
        CHECK_EQUAL(compare.none(),  data.none());
        CHECK_EQUAL(compare.any(),   data.any());
        CHECK_EQUAL(compare.all(),   data.all());
  
        for (size_t i = 0UL; i < data.size(); ++i)
        {
          CHECK_EQUAL(compare.test(i), data.test(i));
        }
      }
  
      //*************************************************************************
      TEST(test_reset)
      {
        std::bitset<60> compare(0xFFFFFFFFFFFFFFFULL);
        etl::bitset<60> data(0xFFFFFFFFFFFFFFFULL);
  
        compare.reset();
        etl::bitset<60>& rdata = data.reset();
  
        CHECK_EQUAL(compare.size(),  rdata.size());
        CHECK_EQUAL(compare.count(), rdata.count());
        CHECK_EQUAL(compare.none(),  rdata.none());
        CHECK_EQUAL(compare.any(),   rdata.any());
        CHECK_EQUAL(compare.all(),   rdata.all());
  
        for (size_t i = 0UL; i < rdata.size(); ++i)
        {
          CHECK_EQUAL(compare.test(i), rdata.test(i));
        }
      }
  
      //*************************************************************************
      TEST(test_base_reset)
      {
        std::bitset<60> compare(0xFFFFFFFFFFFFFFFULL);
        etl::bitset<60> data(0xFFFFFFFFFFFFFFFULL);
        etl::ibitset& idata = data;
  
        etl::ibitset& ridata = idata.reset();
  
        compare.reset();
  
        CHECK_EQUAL(compare.size(),  ridata.size());
        CHECK_EQUAL(compare.count(), ridata.count());
        CHECK_EQUAL(compare.none(),  ridata.none());
        CHECK_EQUAL(compare.any(),   ridata.any());
        CHECK_EQUAL(compare.all(),   ridata.all());
  
        for (size_t i = 0UL; i < ridata.size(); ++i)
        {
          CHECK_EQUAL(compare.test(i), ridata.test(i));
        }
      }
  
  
      //*************************************************************************
      TEST(test_position_reset)
      {
        std::bitset<60> compare(0xFFFFFFFFFFFFFFFULL);
        etl::bitset<60> data(0xFFFFFFFFFFFFFFFULL);
  
        for (size_t i = 0UL; i < data.size(); i += 2UL)
        {
          compare.reset(i);
          data.reset(i);
        }
  
        CHECK_EQUAL(compare.size(),  data.size());
        CHECK_EQUAL(compare.count(), data.count());
        CHECK_EQUAL(compare.none(),  data.none());
        CHECK_EQUAL(compare.any(),   data.any());
        CHECK_EQUAL(compare.all(),   data.all());
  
        for (size_t i = 0UL; i < data.size(); ++i)
        {
          CHECK_EQUAL(compare.test(i), data.test(i));
        }
      }
  
      //*************************************************************************
      TEST(test_index_operator_read)
      {
        std::bitset<60> compare(0x3123456731234567ULL);
        etl::bitset<60> data(0x3123456731234567ULL);
  
        for (size_t i = 0UL; i < data.size(); ++i)
        {
          CHECK_EQUAL(compare[i], data[i]);
        }
      }
  
      //*************************************************************************
      TEST(test_index_operator_write)
      {
        std::bitset<60> compare;
        etl::bitset<60> data;
  
        for (size_t i = 0UL; i < data.size(); ++i)
        {
          compare[i] = (i % 2) == 0;
          data[i]    = (i % 2) == 0;
        }
  
        for (size_t i = 0UL; i < data.size(); ++i)
        {
          CHECK_EQUAL(compare[i], data[i]);
        }
      }
  
      //*************************************************************************
      TEST(test_any)
      {
        std::bitset<60> compare;
        etl::bitset<60> data;
  
        // Set all bits
        compare.set();
        data.set();
  
        // Reset them all.
        for (size_t i = 0UL; i < data.size(); ++i)
        {
          compare.reset(i);
          data.reset(i);
        }
  
        CHECK_EQUAL(compare.any(), data.any());
  
        compare.set(3);
        data.set(3);
  
        CHECK_EQUAL(compare.any(), data.any());
      }
  
      //*************************************************************************
      TEST(test_none)
      {
        std::bitset<62> compare;
        etl::bitset<62> data;
  
        CHECK_EQUAL(compare.none(), data.none());
  
        compare.set(3);
        data.set(3);
  
        CHECK_EQUAL(compare.none(), data.none());
      }
  
      //*************************************************************************
      TEST(test_all)
      {
        std::bitset<60> compare;
        etl::bitset<60> data;
  
        CHECK_EQUAL(compare.all(), data.all());
  
        compare.set();
        data.set();
  
        CHECK_EQUAL(compare.all(), data.all());
      }
  
      //*************************************************************************
      TEST(test_flip)
      {
        std::bitset<60> compare;
        etl::bitset<60> data;
  
        compare.flip();
        data.flip();
  
        for (size_t i = 0UL; i < data.size(); ++i)
        {
          CHECK_EQUAL(compare.test(i), data.test(i));
        }
      }
  
      //*************************************************************************
      TEST(test_base_flip)
      {
        std::bitset<60> compare;
        etl::bitset<60> data;
  
        etl::ibitset& idata = data;
  
        compare.flip();
        idata.flip();
  
        for (size_t i = 0UL; i < idata.size(); ++i)
        {
          CHECK_EQUAL(compare.test(i), idata.test(i));
        }
      }
  
      //*************************************************************************
      TEST(test_flip_position)
      {
        std::bitset<60> compare;
        etl::bitset<60> data;
  
        compare.flip(3);
        data.flip(3);
  
        for (size_t i = 0UL; i < data.size(); ++i)
        {
          CHECK_EQUAL(compare.test(i), data.test(i));
        }
      }
  
      //*************************************************************************
      TEST(test_flip_reference)
      {
        std::bitset<60> compare;
        etl::bitset<60> data;
  
        compare[3].flip();
        data[3].flip();
  
        for (size_t i = 0UL; i < data.size(); ++i)
        {
          CHECK_EQUAL(compare.test(i), data.test(i));
        }
      }
  
      //*************************************************************************
      TEST(test_invert_reference)
      {
        std::bitset<60> compare;
        etl::bitset<60> data;
  
        bool bc = ~compare[3];
        bool bd = ~data[3];
  
        CHECK_EQUAL(bc, bd);
  
        for (size_t i = 0UL; i < data.size(); ++i)
        {
          CHECK_EQUAL(compare.test(i), data.test(i));
        }
      }
  
      //*************************************************************************
      TEST(test_assignment_operator)
      {
        std::bitset<60> compare(0xFFFFFFFFFFFFFFFULL);
        etl::bitset<60> data1(0xFFFFFFFFFFFFFFFULL);
        etl::bitset<60> data2;
  
        data2 = data1;
  
        for (size_t i = 0UL; i < data2.size(); ++i)
        {
          CHECK_EQUAL(compare.test(i), data2.test(i));
        }
      }
  
      //*************************************************************************
      TEST(test_assignment_operator_iterface)
      {
        etl::bitset<60> data1(0xFFFFFFFFFFFFFFFULL);
        etl::bitset<60> data2;
  
        etl::ibitset& idata1 = data1;
        etl::ibitset& idata2 = data2;
  
        idata2 = idata1;
  
        for (size_t i = 0UL; i < data2.size(); ++i)
        {
          CHECK_EQUAL(data1.test(i), data2.test(i));
        }
      }
  
      //*************************************************************************
      TEST(test_equality_operator)
      {
        etl::bitset<60> data1(0x123456781234567ULL);
        etl::bitset<60> data2(0x123456781234567ULL);
        etl::bitset<60> data3;
  
        CHECK(data1 == data2);
        CHECK(!(data1 == data3));
      }
  
      //*************************************************************************
      TEST(test_inequality_operator)
      {
        etl::bitset<60> data1(0x123456781234567ULL);
        etl::bitset<60> data2(0x123456781234567ULL);
        etl::bitset<60> data3;
  
        CHECK(!(data1 != data2));
        CHECK(data1 != data3);
      }
  
      //*************************************************************************
      TEST(test_shift_left_operator)
      {
        etl::bitset<60> data1(0x12345678UL);
        etl::bitset<60> data2;
        etl::bitset<60> shift1(0x2468ACF0UL);
        etl::bitset<60> shift2(0x48D159E0UL);
        etl::bitset<60> shift11(0x91A2B3C000ULL);
  
        data2 = data1;
        data2 <<= 1U;
        CHECK(data2 == shift1);
  
        data2 = data1;
        data2 <<= 2U;
        CHECK(data2 == shift2);
  
        data2 = data1;
        data2 <<= 11U;
        CHECK(data2 == shift11);
      }
  
      //*************************************************************************
      TEST(test_shift_left_operator_shift_element_size)
      {
        etl::bitset<60> data(0x12345678UL);
        etl::bitset<60> shift(0x1234567800UL);
  
        data <<= 8U;
        CHECK_EQUAL(shift.value<uint64_t>(), data.value<uint64_t>());
      }
  
      //*************************************************************************
      TEST(test_shift_left_operator_overflow)
      {
        etl::bitset<31> data(0x7FFFFFFFUL);
        etl::bitset<31> shifted(0x7FFFFFFEUL);
  
        data <<= 1U;
        CHECK(data == shifted);
      }
  
      //*************************************************************************
      TEST(test_shift_left_copy_operator)
      {
        etl::bitset<60> data1(0x12345678UL);
        etl::bitset<60> data2;
        etl::bitset<60> shift1(0x2468ACF0UL);
        etl::bitset<60> shift2(0x48D159E0UL);
        etl::bitset<60> shift11(0x91A2B3C000ULL);
  
        data2 = data1 << 1U;
        CHECK(data2 == shift1);
  
        data2 = data1 << 2U;
        CHECK(data2 == shift2);
  
        data2 = data1 << 11U;
        CHECK(data2 == shift11);
      }
  
      //*************************************************************************
      TEST(test_shift_right_operator)
      {
        etl::bitset<60> data1(0x12345678UL);
        etl::bitset<60> data2;
        etl::bitset<60> shift1(0x91A2B3CUL);
        etl::bitset<60> shift2(0x48D159EUL);
        etl::bitset<60> shift11(0x2468AUL);
  
        data2 = data1;
        data2 >>= 1U;
        CHECK(data2 == shift1);
  
        data2 = data1;
        data2 >>= 2U;
        CHECK(data2 == shift2);
  
        data2 = data1;
        data2 >>= 11U;
        CHECK(data2 == shift11);
      }
  
      //*************************************************************************
      TEST(test_shift_right_operator_shift_element_size)
      {
        etl::bitset<60> data(0x12345678UL);
        etl::bitset<60> shift(0x123456UL);
  
        data >>= 8U;
        CHECK_EQUAL(shift.value<uint64_t>(), data.value<uint64_t>());
      }
  
      //*************************************************************************
      TEST(test_shift_right_copy_operator)
      {
        etl::bitset<60> data1(0x12345678UL);
        etl::bitset<60> data2;
        etl::bitset<60> shift1(0x91A2B3CUL);
        etl::bitset<60> shift2(0x48D159EUL);
        etl::bitset<60> shift11(0x2468AUL);
  
        data2 = data1 >> 1U;
        CHECK(data2 == shift1);
  
        data2 = data1 >> 2U;
        CHECK(data2 == shift2);
  
        data2 = data1 >> 11U;
        CHECK(data2 == shift11);
      }
  
      //*************************************************************************
      TEST(test_and_operator)
      {
        etl::bitset<60> data1(0x12345678UL);
        etl::bitset<60> data2(0x23456789UL);
        etl::bitset<60> data3;
        etl::bitset<60> data4(0x12345678UL & 0x23456789UL);
  
        data3 = data1 & data2;
        CHECK(data3 == data4);
      }
  
      //*************************************************************************
      TEST(test_and_equals_operator)
      {
        etl::bitset<60> data1(0x12345678UL);
        etl::bitset<60> data2(0x23456789UL);
        etl::bitset<60> data3(0x12345678UL & 0x23456789UL);
  
        data2 &= data1;
        CHECK(data2 == data3);
      }
  
      //*************************************************************************
      TEST(test_or_operator)
      {
        etl::bitset<60> data1(0x12345678UL);
        etl::bitset<60> data2(0x23456789UL);
        etl::bitset<60> data3;
        etl::bitset<60> data4(0x12345678UL | 0x23456789UL);
  
        data3 = data1 | data2;
        CHECK(data3 == data4);
      }
  
      //*************************************************************************
      TEST(test_or_equals_operator)
      {
        etl::bitset<60> data1(0x12345678UL);
        etl::bitset<60> data2(0x23456789UL);
        etl::bitset<60> data3(0x12345678UL | 0x23456789UL);
  
        data2 |= data1;
        CHECK(data2 == data3);
      }
  
      //*************************************************************************
      TEST(test_xor_operator)
      {
        etl::bitset<60> data1(0x12345678UL);
        etl::bitset<60> data2(0x23456789UL);
        etl::bitset<60> data3;
        etl::bitset<60> data4(0x12345678UL ^ 0x23456789UL);
  
        data3 = data1 ^ data2;
        CHECK(data3 == data4);
      }
  
      //*************************************************************************
      TEST(test_xor_equals_operator)
      {
        etl::bitset<60> data1(0x12345678UL);
        etl::bitset<60> data2(0x23456789UL);
        etl::bitset<60> data3(0x12345678UL ^ 0x23456789UL);
  
        data2 ^= data1;
        CHECK(data2 == data3);
      }
  
      //*************************************************************************
      TEST(test_index_operator)
      {
        etl::bitset<60> data1(0x123456781234567ULL);
        etl::bitset<60> data2;
  
        for (size_t i = 0UL; i < data1.size(); ++i)
        {
          data2[i] = data1[i];
        }
  
        CHECK(data1 == data2);
      }
  
      //*************************************************************************
      TEST(test_base_index_operator)
      {
        etl::bitset<60> data1(0x123456781234567ULL);
        etl::bitset<60> data2;
  
        etl::ibitset& idata1 = data1;
        etl::ibitset& idata2 = data2;
  
        for (size_t i = 0UL; i < idata1.size(); ++i)
        {
          idata2[i] = idata1[i];
        }
  
        CHECK(data1 == data2);
      }
  
      //*************************************************************************
      TEST(test_big_bitset)
      {
        std::bitset<10000> compare;
        etl::bitset<10000> data;
  
        for (size_t i = 0UL; i < data.size(); ++i)
        {
          compare.set(i, (i % 2) == 0);
          data.set(i, (i % 2) == 0);
        }
  
        CHECK_EQUAL(compare.test(64), data.test(64));
  
        for (size_t i = 0UL; i < data.size(); ++i)
        {
          CHECK_EQUAL(compare.test(i), data.test(i));
        }
  
        compare.flip();
        data.flip();
  
        for (size_t i = 0UL; i < data.size(); ++i)
        {
          CHECK_EQUAL(compare.test(i), data.test(i));
        }
      }
  
      //*************************************************************************
      TEST(test_small_bitset)
      {
        std::bitset<7> compare;
        etl::bitset<7> data;
  
        compare.flip();
        data.flip();
  
        for (size_t i = 0UL; i < data.size(); ++i)
        {
          CHECK_EQUAL(compare.test(i), data.test(i));
        }
      }
  
      //*************************************************************************
      TEST(test_find_first)
      {
        etl::bitset<6> data;
  
        data.set("000000");
        CHECK_EQUAL(0U, data.find_first(false));
        CHECK_EQUAL(etl::ibitset::npos, data.find_first(true));
  
        data.set("111111");
        CHECK_EQUAL(etl::ibitset::npos, data.find_first(false));
        CHECK_EQUAL(0U, data.find_first(true));
  
        data.set("000001");
        CHECK_EQUAL(1U, data.find_first(false));
        CHECK_EQUAL(0U, data.find_first(true));
  
        data.set("100000");
        CHECK_EQUAL(0U, data.find_first(false));
        CHECK_EQUAL(5U, data.find_first(true));
  
        data.set("100001");
        CHECK_EQUAL(1U, data.find_first(false));
        CHECK_EQUAL(0U, data.find_first(true));
  
        data.set("001110");
        CHECK_EQUAL(0U, data.find_first(false));
        CHECK_EQUAL(1U, data.find_first(true));
  
        data.set("110001");
        CHECK_EQUAL(1U, data.find_first(false));
        CHECK_EQUAL(0U, data.find_first(true));
      }
  
      //*************************************************************************
      TEST(test_find_next)
      {
        etl::bitset<6> data;
  
        data.set("000000");
        CHECK_EQUAL(0U, data.find_next(false, 0));
        CHECK_EQUAL(1U, data.find_next(false, 1));
        CHECK_EQUAL(etl::ibitset::npos, data.find_next(true, 2));
  
        data.set("111111");
        CHECK_EQUAL(0U, data.find_next(true,  0));
        CHECK_EQUAL(1U, data.find_next(true,  1));
        CHECK_EQUAL(etl::ibitset::npos, data.find_next(false, 2));
  
        data.set("001110");
        CHECK_EQUAL(0U, data.find_next(false, 0));
        CHECK_EQUAL(1U, data.find_next(true,  0));
        CHECK_EQUAL(4U, data.find_next(false, 1));
  
        data.set("110001");
        CHECK_EQUAL(0U, data.find_next(true,  0));
        CHECK_EQUAL(1U, data.find_next(false, 0));
        CHECK_EQUAL(4U, data.find_next(true,  1));
      }
  
      //*************************************************************************
      TEST(test_find_next_multi_byte_bitset_github_issue_336)
      {
        etl::bitset<24> data;
        data.set(12);
        data.set(22);
        CHECK_EQUAL(12U, data.find_next(true,  3));
        CHECK_EQUAL(12U, data.find_next(true, 10));
  
        // set first ten bytes
        data.set("1111111111");
        CHECK_EQUAL(10U, data.find_next(false, 3));
        CHECK_EQUAL(10U, data.find_next(false, 9));
      }
  
      //*************************************************************************
      TEST(test_find_next_github_issue_336)
      {
        etl::bitset<16> bits16;
        bits16.set(12);
  
        etl::bitset<24> bits24;
        bits24.set(12);
  
        CHECK_EQUAL(12, bits16.find_first(true));
        CHECK_EQUAL(12, bits16.find_next(true, 4));
        CHECK_EQUAL(etl::ibitset::npos, bits16.find_next(true, 13));
  
        CHECK_EQUAL(12, bits24.find_first(true));
        CHECK_EQUAL(12, bits24.find_next(true, 4));
        CHECK_EQUAL(etl::ibitset::npos, bits24.find_next(true, 13));
      }
  
      //*************************************************************************
      TEST(test_swap)
      {
        etl::bitset<6> compare1("101010");
        etl::bitset<6> compare2("010101");
  
        etl::bitset<6> data1(compare1);
        etl::bitset<6> data2(compare2);
  
        swap(data1, data2);
  
        CHECK(data1 == compare2);
        CHECK(data2 == compare1);
      }
  
      //*************************************************************************
      TEST(test_span)
      {
        using span_t = etl::ibitset::span_type;
  
        etl::bitset<32> b(0x12345678UL);
  
        span_t s = b.span();
        CHECK_EQUAL(0x78U, s[0]);
        CHECK_EQUAL(0x56U, s[1]);
        CHECK_EQUAL(0x34U, s[2]);
        CHECK_EQUAL(0x12U, s[3]);
  
        s[2] = 0x9AU;
        uint32_t value = b.value<uint32_t>();
        CHECK_EQUAL(0x129A5678UL, value);
      }
  
      //*************************************************************************
      TEST(test_const_span)
      {
        using span_t = etl::ibitset::const_span_type;
  
        const etl::bitset<32> b(0x12345678UL);
  
        span_t s = b.span();
        CHECK_EQUAL(0x78U, s[0]);
        CHECK_EQUAL(0x56U, s[1]);
        CHECK_EQUAL(0x34U, s[2]);
        CHECK_EQUAL(0x12U, s[3]);
      }
  
      //*************************************************************************
      TEST(test_to_string)
      {
        etl::bitset<32> b(0x12345678UL);
  
        etl::string<32> text = b.to_string('.', '*');
        std::string stdtext = b.to_string<std::string>('.', '*');
  
        CHECK_THROW(etl::string<32> text1 = b.to_string<etl::string<30>>('.', '*'), etl::bitset_overflow);   
        CHECK_EQUAL("...*..*...**.*...*.*.**..****...", text.c_str());
        CHECK_EQUAL("...*..*...**.*...*.*.**..****...", stdtext.c_str());
      }
  
      //*************************************************************************
      TEST(test_issue_497_count_inverted_bits)
      {
        etl::bitset<5U> bits;
        std::bitset<5U> stdbits;
        etl::bitset<5U> negbits = ~bits;
        std::bitset<5U> stdnegbits = ~stdbits;
  
        CHECK_EQUAL(stdbits.count(),    bits.count());
        CHECK_EQUAL(stdbits.all(),      bits.all());
        CHECK_EQUAL(stdnegbits.count(), negbits.count());
        CHECK_EQUAL(stdnegbits.all(),   negbits.all());
      }
  
      //*************************************************************************
      TEST(test_issue_497_shifted_zero_sized_bitset)
      {
        etl::bitset<0> bits;
        std::bitset<0> stdbits;
  
        CHECK_EQUAL(stdbits.size(), bits.size());
        CHECK_EQUAL(stdbits.none(), bits.none());
        CHECK_EQUAL(stdbits.all(),  bits.all());
        CHECK_EQUAL(stdbits.any(),  bits.any());
  
        CHECK_EQUAL(stdbits.count(),     bits.count());
        CHECK_EQUAL(stdbits.to_ulong(),  bits.to_ulong());
        CHECK_EQUAL(stdbits.to_ullong(), bits.to_ullong());
  
        etl::bitset<0> shiftbits = bits << 1; // No exception.
      }
    };
  }
  