fpurge(3bsd) LOCAL fpurge(3bsd)
NAME
fpurge — flush a stream
LIBRARY
Utility functions from BSD systems (libbsd, -lbsd)
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 in-
put 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.
BSD November 4, 2015 BSD
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