On Thu, Aug 11, 2005 at 03:31:11AM -0700, Yitzchak Scott-Thoennes wrote: > On Thu, Aug 11, 2005 at 02:05:20AM -0700, Yitzchak Scott-Thoennes wrote: > > The PERL_PRESERVE_IVUV stuff can lose a negative zero. > > > > $ perl -we'$x = -.0; $x *= 1.0; print $x' > > 0 > > $ perl -we'$x = -.0; $x *= 1.1; print $x' > > -0 > > > > Should a negative zero never get IOK turned on? > > I meant to show the non-assignment case, where the - is a driveby > shooting victim: > > $ perl -we'$x = -.0; scalar($x * 1.0); print $x' > 0 > $ perl -we'$x = -.0; scalar($x * 1.1); print $x' > -0
Even worse: $ perl -we'$x = -.0; scalar(1.1 * $x); print $x' 0
