* In a message originally to Mike Bilow, Bill Patterson writes:

 MB> Both your instructor and this book are wrong.  As many people here have
 MB> been trying to convince you, the actual wording of Section 7.9.5.2 of the
 MB> ANSI C standard explicitly says that fflush() is defined only for output
 MB> streams:
 MB> 
 MB>    int fflush(FILE *stream);
 MB> 
 MB>    If 'stream' points to an output stream or an update stream in which
 MB> the 
 MB>    most recent operation was not input, the 'fflush' function causes any 
 MB>    unwritten data to be delivered to the host environment to be written
 MB> to a 
 MB>    file; otherwise, the behavior is undefined.
 MB>  
 MB> -- Mike
 MB> 
 MB> 
 MB> ---
 MB> (1:323/107)

It might be undefined, but.... SAMS, Microsoft (C for yourself), Borland,
and the Turbo C Bible all teach it that way.
Bill


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