src/lib9/fmt/fmtnull.c

/* Copyright (c) 2004 Google Inc.; see LICENSE */
#include <stdarg.h>
#include <string.h>
#include "plan9.h"
#include "fmt.h"
#include "fmtdef.h"

/*
 * Absorb output without using resources.
 */
static Rune nullbuf[32];

static int
__fmtnullflush(Fmt *f)
{
	f->to = nullbuf;
	f->nfmt = 0;
	return 0;
}

int
fmtnullinit(Fmt *f)
{
	memset(f, 0, sizeof *f);
	f->runes = 1;
	f->start = nullbuf;
	f->to = nullbuf;
	f->stop = nullbuf+nelem(nullbuf);
	f->flush = __fmtnullflush;
	fmtlocaleinit(f, nil, nil, nil);
	return 0;
}