fsetpos
From cppreference.com
                    
                                        
                    
                    
                                                            
                    |   Defined in header  
<stdio.h>
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Sets the file position indicator for the file stream stream to the value pointed to by pos. 
[edit] Parameters
| stream | - | file stream to modify | 
| pos | - | pointer to a fpos_t object to use as new value of file position indicator | 
[edit] Return value
0 upon success, nonzero value otherwise.
[edit] See also
|    gets the file position indicator  (function)  | 
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|    returns the current file position indicator  (function)  | 
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|    moves the file position indicator to a specific location in a file  (function)  | 
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