Zsh Mailing List Archive
Messages sorted by: Reverse Date, Date, Thread, Author

Re: Bug#448732: zsh: printf %g -0 outputs 0 instead of -0



Vincent Lefevre wrote:
> On 2007-11-06 10:46:20 +0000, Peter Stephenson wrote:
> > On Wed, 31 Oct 2007 12:38:38 -0400
> > Clint Adams <schizo@xxxxxxxxxx> wrote:
> > > I believe the gist is that since %g calls for a float, -0 should be
> > > parsed as negative zero.
> > 
> > I tried the following patch, but on my system (Fedora 7 with glibc
> > glibc-2.6-4) strtod() returns the double value 0 (not -0) when parsing
> > the input "-0".  I confirmed this with a standalone programme.  It seems
> > pointless working around this in the shell.
> 
> The bug in glibc's strtod() was fixed on 2007-08-03:
> 
> revision 1.25
> date: 2007/08/03 16:45:24;  author: drepper;  state: Exp;  lines: +4 -3
> (____STRTOF_INTERNAL): Properly handle -0.

Thanks, I committed the change in zh so the problem should go away
eventually.

-- 
Peter Stephenson <pws@xxxxxxx>                  Software Engineer
CSR PLC, Churchill House, Cambridge Business Park, Cowley Road
Cambridge, CB4 0WZ, UK                          Tel: +44 (0)1223 692070



Messages sorted by: Reverse Date, Date, Thread, Author