> Yes. The smart match operator was commutative only in version 5.10 of perl.
> The change was made in the very next release - version 5.10.1.
>
Just wondering now -- does ...
@divisors ~~ 2
... have any meaning now?
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On 27/11/2010 18:16, Téssio Fechine wrote:
Smart match operator was commutative the first time it was introduced.
So "@divisors ~~ 2" would search for 2 in the list of divisors..
For any reason smart match is not commutative anymore, so the right syntax now is "2
~~ @divisors"..
The problem is
changed.
> De: mag...@trapd00r.se
> Assunto: Re: smart match question
> Para: beginners@perl.org
> Data: Sábado, 27 de Novembro de 2010, 12:31
>
> How do you think that would work?
> From perldoc perlop:
>
> >>Binary "~~" does a
> smart match b
my @divisors = (1, 2);
say "It's divisible by 2!" if @divisors ~~ 2;
How do you think that would work?
From perldoc perlop:
Binary "~~" does a smart match between its arguments. Smart
matching is described in "Smart matching in detail" in perlsyn.
my @divisors = (1 .. 6);
for
I'm running perl 5.10!
--
perl -v
This is perl, v5.10.1 (*) built for i486-linux-gnu-thread-multi
--
A think it's no longer true then:
"The smart match operator is commutative, which you may remember from high
school algebra as the fancy way to say that the order of the operands doesn’t
matter.
On Nov 27, 2010, at 9:01 AM, Chap Harrison wrote:
> On Nov 27, 2010, at 7:45 AM, Téssio Fechine wrote:
>
>> Why "@divisors ~~ 2" is not true?
>
> No idea - it seems to work fine for me:
> - - -
> /Users/chap/private/perl$ cat smart
> use 5.010;
> use strict;
> use warnings;
>
> my @divisors =
On Nov 27, 2010, at 7:45 AM, Téssio Fechine wrote:
> --
> tes...@krauzer:~/Perl/Ex/ch15$ cat smart
>
> use 5.010;
>
> use strict;
>
> use warnings;
>
>
>
> my @divisors = (1, 2);
>
> say "It's divisible by 2!" if @divisors ~~ 2;
>
> tes...@krauzer:~/Perl/Ex/ch15$ perl smart
>
> tes...@kra
Another day, another problem.. =/
--
tes...@krauzer:~/Perl/Ex/ch15$ cat smart
use 5.010;
use strict;
use warnings;
my @divisors = (1, 2);
say "It's divisible by 2!" if @divisors ~~ 2;
tes...@krauzer:~/Perl/Ex/ch15$ perl smart
tes...@krauzer:~/Perl/Ex/ch15$
--
Why "@divisors ~~ 2" is no
