fwrite
From cppreference.com
                    
                                        
                    
                    
                                                            
                    | Defined in header <stdio.h>
  | ||
| int fwrite( const void *buffer, size_t size, size_t count, FILE *stream ); | ||
Writes count of objects in the given array buffer to the output stream stream. Objects are not interpreted in any way.
[edit] Parameters
| buffer | - | pointer to the first object object in the array to be written | 
| size | - | size of each object | 
| count | - | the number of the objects to be written | 
[edit] Return value
number of objects written successfully
[edit] See also
| prints formatted output to stdout, a file stream or a buffer (function) | |
| writes a character string to a file stream (function) | |
| reads from a file (function) | |