message: Solve the size_t issue in computing pattern index
diff: @@ -103,8 +103,9 @@ class MatchingFilesDatasetOp : public DatasetOpKernel {
  FileSystem* fs;
  TF_RETURN_IF_ERROR(ctx->env()->GetFileSystemForFile(
  - dataset()
  - ->patterns_[std::max(size_t(0), current_pattern_index_ - 1)],
  + dataset()->patterns_[(current_pattern_index_ > 0)
  + ? current_pattern_index_ - 1
  + : 0],
  &fs));
  while (!filepath_queue_.empty() ||
  