start = this->is_negative = input[0] == '-';
    len = current_bit = 0;

    Block *current_block = create_new_block(current_alloc_size);
    int64_t *current_elements = current_block->get_bits_array();
    int64_t current_element = 0;
    uint32_t BITS_PER_ELEMENT = sizeof(uint64_t) * Architecture::PlatformChecks::bits_per_byte(); // should move to header
    while (start < input_len - 1 || input[input_len - 1] != '0') {
        if (current_bit > BITS_PER_ELEMENT) {
            current_bit = 0;
            if (current_element == current_alloc_size) {
                blocks.push_back(*current_block);
                current_alloc_size = current_alloc_size << 1;
                current_block = create_new_block(current_alloc_size);
                current_elements = current_block->get_bits_array();
                current_element = 0;
            }
            else {
                ++len;
                ++current_element;
            }
        }