Online HelpPC 2.10      Quick Reference Utility     Copyright 1991 David Jurgens

 
                   void setbuf( FILE *stream, char *buf )                   
                                                                                
                                                                                
        - prototype in stdio.h                                                  
                                                                                
        - causes "buf" to be used for I/O buffering instead of the              
          automatically allocated buffer, and are used after given              
          stream is opened                                                      
        - if "buf" is NULL, I/O is unbuffered                                   
        - no I/O to the file should occur after opening file until              
          buffering is set                                                      
                                                                                
        - see   setvbuf()                                                       
                                                                                
 

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