problematic document for isascii(3)

[Corinna Vinschen]

On May 23 08:25, Eric Blake wrote:
> On 05/23/2013 07:21 AM, ntysdd wrote:
> > Hi,
> > I found something buggy in the document.
> > The doc says "`isascii' is ANSI C", but it isn't.
> > It is a BSD extension.
> 
> Actually, it is also POSIX, but you are correct that it is not C.
> http://pubs.opengroup.org/onlinepubs/9699919799/functions/isascii.html
> 
> > 
> > Also the doc for isdigit says
> > "It is defined only when `isascii'(C) is true or C is EOF."
> 
> This is a lie; isascii(128) returns false, but isdigit(128) is well=defined.
> 
> > 
> > But isdigit is ANSI C so it should not rely on isascii.
> > And after reading the ansi draft, I think isdigit is defined
> > for anything representable as an unsigned char (plus EOF).
> 
> Correct, that is also the POSIX wording:
> http://pubs.opengroup.org/onlinepubs/9699919799/functions/isdigit.html

I fixed that in CVS.


Thanks,
Corinna

-- 
Corinna Vinschen
Cygwin Maintainer
Red Hat