original_string: public function isFileEmpty()
      {
          $this->openFile();
          $saved_pointer = $this->getFilePointer();
          $this->rewindFile()->seekFileToEnd();
          $size_pointer = $this->getFilePointer();
          $this->seekFile($saved_pointer);
  
          return $size_pointer === 0;
      }
code: public function isFileEmpty()
      {
          $this->openFile();
          $saved_pointer = $this->getFilePointer();
          $this->rewindFile()->seekFileToEnd();
          $size_pointer = $this->getFilePointer();
          $this->seekFile($saved_pointer);
  
          return $size_pointer === 0;
      }
code_tokens: public function isFileEmpty ( ) { $ this -> openFile ( ) ; $ saved_pointer = $ this -> getFilePointer ( ) ; $ this -> rewindFile ( ) -> seekFileToEnd ( ) ; $ size_pointer = $ this -> getFilePointer ( ) ; $ this -> seekFile ( $ saved_pointer ) ; return $ size_pointer === 0 ; }
docstring: Find whether file is empty
  @return bool
  @throws AtomicFileException
docstring_tokens: Find whether file is empty