Method CopyFrom

src/treelearner/split_info.hpp:93–128

  }

  void CopyFrom(const char* buffer) {
    std::memcpy(&feature, buffer, sizeof(feature));
    buffer += sizeof(feature);
    std::memcpy(&left_count, buffer, sizeof(left_count));
    buffer += sizeof(left_count);
    std::memcpy(&right_count, buffer, sizeof(right_count));
    buffer += sizeof(right_count);
    std::memcpy(&gain, buffer, sizeof(gain));
    buffer += sizeof(gain);
    std::memcpy(&threshold, buffer, sizeof(threshold));
    buffer += sizeof(threshold);
    std::memcpy(&left_output, buffer, sizeof(left_output));
    buffer += sizeof(left_output);
    std::memcpy(&right_output, buffer, sizeof(right_output));
    buffer += sizeof(right_output);
    std::memcpy(&left_sum_gradient, buffer, sizeof(left_sum_gradient));
    buffer += sizeof(left_sum_gradient);
    std::memcpy(&left_sum_hessian, buffer, sizeof(left_sum_hessian));
    buffer += sizeof(left_sum_hessian);
    std::memcpy(&right_sum_gradient, buffer, sizeof(right_sum_gradient));
    buffer += sizeof(right_sum_gradient);
    std::memcpy(&right_sum_hessian, buffer, sizeof(right_sum_hessian));
    buffer += sizeof(right_sum_hessian);
    std::memcpy(&default_left, buffer, sizeof(default_left));
    buffer += sizeof(default_left);
    std::memcpy(&monotone_type, buffer, sizeof(monotone_type));
    buffer += sizeof(monotone_type);
    std::memcpy(&min_constraint, buffer, sizeof(min_constraint));
    buffer += sizeof(min_constraint);
    std::memcpy(&max_constraint, buffer, sizeof(max_constraint));
    buffer += sizeof(max_constraint);
    std::memcpy(&num_cat_threshold, buffer, sizeof(num_cat_threshold));
    buffer += sizeof(num_cat_threshold);
    cat_threshold.resize(num_cat_threshold);
    std::memcpy(cat_threshold.data(), buffer, sizeof(uint32_t) * num_cat_threshold);
  }

  inline void Reset() {
    // initialize with -1 and -inf gain