Method UpdateLink

lib/mdflib/mdflib/src/mdfblock.cpp:723–747

void MdfBlock::UpdateLink(std::streambuf& buffer, size_t link_index, int64_t link) {
  if (link_index >= link_list_.size()) {
    throw std::runtime_error("index is out of bounds");
  }
  if (link == link_list_[link_index]) {
    return;  // No need to update the link
  }

  auto pos = FilePosition();

  // If the block not yet is written, the link will be written later
  if (pos > 0) {
    if (IsMdf4()) {
      pos += 24 + static_cast<int64_t>(link_index * 8);
      SetFilePosition(buffer, pos);
      WriteNumber(buffer, link);
    } else {
      pos += 4 + static_cast<int64_t>(link_index * 4);
      const auto link32 = static_cast<uint32_t>(link);
      SetFilePosition(buffer, pos);
      WriteNumber(buffer, link32);
    }
  }
  link_list_[link_index] = link;
}

void MdfBlock::UpdateBlockSize(std::streambuf& buffer, uint64_t bytes) {
  auto pos = FilePosition();