NAME

     fpurge — flush a stream

LIBRARY

     library “libbsd”

SYNOPSIS

     #include <stdio.h>
     (See libbsd(7) for include usage.)

     int
     fpurge(FILE *stream);

DESCRIPTION

     The function fpurge() erases any input or output buffered in the given stream.  For output
     streams this discards any unwritten output.  For input streams this discards any input read
     from the underlying object but not yet obtained via getc(3); this includes any text pushed
     back via ungetc(3).

RETURN VALUES

     Upon successful completion 0 is returned.  Otherwise, EOF is returned and the global
     variable errno is set to indicate the error.

ERRORS

     [EBADF]            stream is not an open stream.

SEE ALSO

     fclose(3), fopen(3), setvbuf(3)

HISTORY

     The fpurge() function first appeared in 4.4BSD-Lite.