From owner-freebsd-hackers  Thu Jan 18 10:08:18 1996
Return-Path: owner-hackers
Received: (from root@localhost)
          by freefall.freebsd.org (8.7.3/8.7.3) id KAA22769
          for hackers-outgoing; Thu, 18 Jan 1996 10:08:18 -0800 (PST)
Received: from cats.ucsc.edu (root@cats-po-1.UCSC.EDU [128.114.129.22])
          by freefall.freebsd.org (8.7.3/8.7.3) with SMTP id KAA22764
          for <hackers@freebsd.org>; Thu, 18 Jan 1996 10:08:16 -0800 (PST)
Received: from scruz.ucsc.edu by cats.ucsc.edu with SMTP
	id KAA02521; Thu, 18 Jan 1996 10:08:03 -0800
Received: from osprey by scruz.ucsc.edu id aa02530; 18 Jan 96 9:59 PST
Received: (from markd@localhost) by Grizzly.COM (8.6.12/8.6.9) id IAA01128; Thu, 18 Jan 1996 08:52:15 GMT
Date: Thu, 18 Jan 1996 08:52:15 GMT
Message-Id: <199601180852.IAA01128@Grizzly.COM>
From: Mark Diekhans <markd@grizzly.com>
To: jkh@time.cdrom.com
CC: torek@bsdi.com, hackers@freebsd.org
In-reply-to: <23707.821959252@time.cdrom.com> (jkh@time.cdrom.com)
Subject: Re: Change to stdio.h to export `cookie?'
Sender: owner-hackers@freebsd.org
Precedence: bulk


>> >#define fpending(fp)    ((fp)->_p - (fp)->_bf._base)
> 
>> Probably not a bad idea, though this is only correct for write-mode.
>> A more general version might be proposed and sent to ANSI for C9X...
>
>I'm open to suggestions.. :-)


#define fwritepending(fp)    ((fp)->_p - (fp)->_bf._base)
#define freadpending(fp)    ((fp)->_r > 0)

I believe is correct.  The read check is much more useful, however.

Mark