ref: 7ba556c6b9e951b68df06e0982e67ec36f5de8c8
dir: /libc/fmtfdflush.c/
#include <inttypes.h>
#include <u.h>
#include <libc.h>
#include "fmtdef.h"
/*
* generic routine for flushing a formatting buffer
* to a file descriptor
*/
int
__fmtFdFlush(Fmt *f)
{
int n;
n = (char*)f->to - (char*)f->start;
if(n && write((uintptr_t)f->farg, f->start, n) != n)
return 0;
f->to = f->start;
return 1;
}