rewind
From cppreference.com
                    
                                        
                    
                    
                                                            
                    | Defined in header <stdio.h>
  | ||
| void rewind( FILE *stream ); | ||
Moves the file position indicator to the beginning of the given file stream. EOF and error flags are also cleared.
[edit] Parameters
| stream | - | file stream to modify | 
[edit] Return value
(none)
[edit] See also
| moves the file position indicator to a specific location in a file (function) | |