fpurge — flush a stream

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).

[EBADF] stream is not an open stream.

The fpurge() function first appeared in 4.4BSD-Lite. Debian November 4, 2015 fpurge(3bsd)

Utility functions from BSD systems (libbsd, -lbsd)

fpurge — flush a stream

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

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

#include<stdio.h> (See libbsd(7) for include usage.) intfpurge(FILE*stream);