Re: aio_error query

Hi Jon,

On Mon, Feb 20, 2012 at 12:15 AM, Jon Grant [off-list ref] wrote:

Michael Kerrisk wrote, On 19/02/12 02:40:

quoted

Hi Jon

On Sun, Feb 19, 2012 at 9:37 AM, Jon Grant[off-list ref]  wrote:

quoted

Hi Michael

Michael Kerrisk wrote, On 18/02/12 18:18:
[...]

quoted

quoted

http://pubs.opengroup.org/onlinepubs/009604599/functions/xsh_chap02_03.html
http://www.cl.cam.ac.uk/cgi-bin/manpage?3+errno

quoted

quoted

errno is an int, and the values I think are not
guaranteed to be positive (like with glibc). I work on a system where
they
are all negative.

What is the system?

http://www.mpcdata.com/mediasdk/

Is this actually a UNIX system?

No.

(This would have been useful info early in the thread ;-).)

So, I checked with someone close to POSIX who pointed out to me that
there is this text in the POSIX.1-2001 specification of the <errno.h>
header file:

[[
The <errno.h> header shall provide a declaration for errno and give
positive values for the following symbolic constants. Their values
shall be unique except as noted below.
]]

So, I think the man page is fine (but you could file a bug with
Renesas about their implementation).

Cheers,

Michael


-- 
Michael Kerrisk
Linux man-pages maintainer; http://www.kernel.org/doc/man-pages/
Author of "The Linux Programming Interface"; http://man7.org/tlpi/
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