Re: [PATCH] printf: add %#s alias to %b

[Chet Ramey]

On 9/5/23 4:32 PM, Dragan Simic wrote:
> On 2023-09-05 22:25, Chet Ramey wrote:
> > On 9/5/23 3:58 PM, enh wrote:
> > > On Fri, Sep 1, 2023 at 6:59 AM Chet Ramey <chet.ramey@case.edu> wrote:
> >
> > > > I think you'll find that, regardless of its origins, there are more 
> > > > scripts
> > > > using the %b specifier than you think.
> > >
> > > i'd personally never heard of printf(1) %b before this thread, but
> > > debian code search agrees with you:
> >
> > It's a POSIX invention dating from at least 1991 (P1003.2-D11).
> >
> > The POSIX guidance to use it as a portable way to replace SysV echo has
> > dated from the same time. It's a pretty big lift to suddenly invalidate
> > all that prior art. ("POSIX giveth, and POSIX taketh away.").
>
> Are there any official explanations why is the invalidation actually 
> happening now?

https://lists.gnu.org/archive/html/bug-bash/2023-08/msg00112.html

C23 is going to use %b to print binary literals.

--
``The lyf so short, the craft so long to lerne.'' - Chaucer
                 ``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, UTech, CWRU    chet@case.edu    http://tiswww.cwru.edu/~chet/