bionic (3) fpurge.3bsd.gz

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.