What are these emails really about? On Jul 1, 2017 2:42 PM, "Chas. Owens" <chas.ow...@gmail.com> wrote:
> > > On Sat, Jul 1, 2017, 12:44 Shlomi Fish <shlo...@shlomifish.org> wrote: > >> Hi Shawn! >> >> On Sat, 1 Jul 2017 11:32:30 -0400 >> Shawn H Corey <shawnhco...@gmail.com> wrote: >> >> > !!$i which is !(!(0)) which is !(1) which is 0 >> > >> >> I suspect !1 returns an empty string in scalar context. >> > > !1 returns PL_sv_no (an internal scalar variable). It is a dualvar that > contains the empty string, the int 0 and the double 0.0. depending on the > context the value is used in, it will be one of those values. > > Many people think it is an empty string because the print function forces > string context. > >>
