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#if 0
#ifndef _POSIX_SOURCE
#define _POSIX_SOURCE
#define POSIX_FORCED
#endif
#include <stdio.h>
#include <sys/types.h>
#include <unistd.h>
#include "_stdio.h"
#ifdef POSIX_FORCED
#include "_syscall.h"
#define write(_fd, _buf, _size) __scall3(write, _fd, _buf, _size)
#endif
/** flush buffered writes **/
int fflush(FILE *stream)
{
int ret = 0;
if (stream == NULL) {
size_t i;
for (i = 0; i < FOPEN_MAX; i++) {
fflush(&(__stdio.FILES[i]));
}
return 0;
}
if (stream->bpos == 0) {
return 0;
}
flockfile(stream);
if (write(stream->fd, stream->buf, stream->bpos) < 0) {
/* errno is set */
ret = EOF;
stream->err = 1;
} else {
stream->bpos = 0;
}
funlockfile(stream);
/*
RETURN_SUCCESS(0);
RETURN_FAILURE(CONSTANT(EOF));
*/
return ret;
}
/***
function flushes any buffered write operations on ARGUMENT(stream) to
the underlying file.
If ARGUMENT(stream) is CONSTANT(NULL), THIS() will flush all open streams.
***/
/*
UNDEFINED(ARGUMENT(stream) is not an output stream)
UNDEFINED(ARGUMENT(stream) is an update stream in which the most recent operation was input)
STDC(1)
*/
#endif
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