err now that I actually check with warnings it seems I'm wrong and "" " " both give the same warning.
perl -E 'use warnings; use strict; say 1 + ""' Argument "" isn't numeric in addition (+) at -e line 1. 1 perl -E 'use warnings; use strict; say 1 + " "' Argument " " isn't numeric in addition (+) at -e line 1. 1 me bad. On Wed, Jul 6, 2016 at 2:22 AM Lloyd Fournier <lloyd.fo...@gmail.com> wrote: > I think this is to be consistent with p5. > perl -E 'say "" + 1' #-> 1 > > I'm not really making an argument it should be this way. But that's > probably the reason. > > On Wed, Jul 6, 2016 at 2:13 AM Zefram <perl6-bugs-follo...@perl.org> > wrote: > >> # New Ticket Created by Zefram >> # Please include the string: [perl #128543] >> # in the subject line of all future correspondence about this issue. >> # <URL: https://rt.perl.org/Ticket/Display.html?id=128543 > >> >> >> Is it permitted to have no digits at all when coercing a Str to Int? >> The behaviour is inconsistent: >> >> > "".Int >> 0 >> > " ".Int >> Cannot coerce NaN to an Int >> in block <unit> at <unknown file> line 1 >> >> Observing that spaces are permitted when there are digits, it would >> seem that for consistency spaces should also make no difference to the >> treatment of an otherwise-empty string. >> >> -zefram >> >
