Does posix say anything about the sign in NaNs ?

[Peter Pentchev]

On Wed, Dec 24, 2014 at 02:16:37PM -0500, Pedro Giffuni wrote:
> Hello;
> 
> I got the attached patch from OpenBSD.
> 
> It says:
> ____
> Show the sign for NaN as per POSIX; from Elliott Hughes.
> ok martynas@, millert@, doug@
> ____
> 
> I can't find a reference in POSIX documentation to support it though.

The message to OpenBSD's tech@ list that suggested this was
http://marc.info/?l=openbsd-tech&m=141876375108892&w=2

The text from POSIX that it quotes may be found e.g. at
http://pubs.opengroup.org/onlinepubs/9699919799/functions/fprintf.html
(search for "A double argument representing an infinity")

> Anyone has a reason why we shouldn't adopt it, or a reference I can quote
> on the commit log?

Hope the above helps!

> ps. Merry Christmas to everyone !!

Same to you! :)

G'luck,
Peter

-- 
Peter Pentchev  roam at ringlet.net roam at FreeBSD.org p.penchev at storpool.com
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