duplicate codes in bplus_tree.h and tuple_cell.cpp

[hnwyllmm]

the codes for attribute compare is duplicate

int operator()(const char *v1, const char *v2) const {
    switch (attr_type_) {
    case INTS: {
      return *(int *)v1 - *(int *)v2;
    }
      break;
    case FLOATS: {
      float result = *(float *)v1 - *(float *)v2;
      if (-1e-6 < result && result < 1e-6) {
        return 0;
      }
      return result > 0 ? 1 : -1;
    }
    case CHARS: {
      return strncmp(v1, v2, attr_length_);
    }
    default:{
      LOG_ERROR("unknown attr type. %d", attr_type_);
      abort();
    }
    }
  }

the other

int TupleCell::compare(const TupleCell &other) const
{
  if (this->attr_type_ == other.attr_type_) {
    switch (this->attr_type_) {
    case INTS: return compare_int(this->data_, other.data_);
    case FLOATS: return compare_float(this->data_, other.data_);
    case CHARS: return compare_string(this->data_, this->length_, other.data_, other.length_);
    default: {
      LOG_WARN("unsupported type: %d", this->attr_type_);
    }
    }
  } else if (this->attr_type_ == INTS && other.attr_type_ == FLOATS) {
    float this_data = *(int *)data_;
    return compare_float(&this_data, other.data_);
  } else if (this->attr_type_ == FLOATS && other.attr_type_ == INTS) {
    float other_data = *(int *)other.data_;
    return compare_float(data_, &other_data);
  }
  LOG_WARN("not supported");
  return -1; // TODO return rc?
}