message: Attempt to fix Windows bug
diff: @@ -145,8 +145,8 @@ size_t FileFStream::GetSize()
  {
  const auto currentPosition = m_FileStream.tellg();
  m_FileStream.seekg(0, std::ios_base::end);
  - const auto size = m_FileStream.tellg();
  - if (size == -1)
  + const std::streampos size = m_FileStream.tellg();
  + if (static_cast<int>(size) == -1)
  {
  throw std::ios_base::failure("ERROR: couldn't get size of " + m_Name +
  " file\n");
  