Re: [perl #122351] srand(()) weirdness (note the empty list)

On 23 October 2014 05:33, Tony Cook via RT <perl...@perl.org>
wrote:

> On Tue Oct 21 21:44:12 2014, sprout wrote:> > On Tue Jul 22 12:18:59 2014, demerphq wrote:> > > On 22 July 2014 21:14, Eric Brine <ikeg...@adaelis.com> wrote:> > >> > > > On Mon, Jul 21, 2014 at 12:08 PM, demerphq <deme...@gmail.com>> > > > wrote:> > > >> > > >> The part I consider the most serious bug is that srand(()) or> > > >> sleep(())> > > >> are treated the same as srand(undef) or sleep(undef). That is an> > > >> empty> > > >> list, it should not be treated as a value.> > > >>> > > >> > > > > perl -E"say prototype 'CORE::sleep'"> > > > ;$> > > >> > > > It's Perl's stupid prototypes. ($) means "one argument evaluated in> > > > scalar> > > > context", so (;$) means "no arguments or one evaluated in scalar> > > > context".> > > >> > > > > perl -E"sub x(;$) { say 0+@_; } x(());"> > > > 1> > > >> > > > A stub in scalar context is undef.> > > >> > > > > perl -MDevel::Peek -e"$x = (); Dump($x);"> > > > SV = NULL(0x0) at 0x229240> > > >   REFCNT = 1> > > >   FLAGS = ()> > > >> > > >> > > Interesting. Thanks. That does make sense, in a sad way.> >> > I see no other way for this to work.  Can we close this as not-a-bug?>> I agree, closing.>

I dont agree. We can remove or fix the prototype.

Yves


-- 
perl -Mre=debug -e "/just|another|perl|hacker/"