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From: "Bohne, Peter" <Peter.Bohne@hboc.com>
To: "'andrew@ugh.net.au'" <andrew@ugh.net.au>,
	FengYue <fengyue@bluerose.windmoon.nu>
Cc: hackers@FreeBSD.ORG
Subject: RE: libc_r/_read(), should the errno be reset to 0?
Date: Fri, 23 Jun 2000 11:37:21 -0400
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This means that *you* should set errno to 0 just before you do the read
call.  At this point, you no longer care what it had been before.
--
pete

====== pbohne at hboc dot com
Peter Bohne -- McKessonHBOC -- Louisville, CO
Work: 303-926-2218 -- Cell: 303-817-8312 -- Home Ofc: 970-586-9031
====== "Very funny, Scottie.  Now beam down my clothes!"



> -----Original Message-----
> From: andrew@ugh.net.au [mailto:andrew@ugh.net.au]
> Sent: Friday, June 23, 2000 3:02 AM
> To: FengYue
> Cc: hackers@FreeBSD.ORG
> Subject: Re: libc_r/_read(), should the errno be reset to 0?
> 
> 
> 
> 
> On Fri, 23 Jun 2000, FengYue wrote:
> 
> > My question is, shouldn't it be reset to zero?
> 
> From intro(2):
> 
> Successful calls never set errno; once set, it remains until 
> another error
> occurs.  It should only be examined after an error.
> 
> Andrew
> 
> 
> 
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