SPUG: Shouldn't this work?
David Dyck
dcd at tc.fluke.com
Thu Nov 29 14:54:45 CST 2001
On Thu, 29 Nov 2001 at 12:14 -0800, Martin, Asa <asa.martin at attws.com> wrote:
> Am I missing something, or shouldn't this syntax be valid to create a
> reference to an anonymous array:
>
> $ cat /tmp/a
> #!/usr/bin/perl -w
> use strict;
>
> my $aref = qw[one two three four];
Change this to
my $aref = [ qw[one two three four] ];
> if (ref($aref) eq 'ARRAY') {
> print "yes\n";
> }
Then the script prints yes.
The [] in
my $aref = qw[one two three four];
are just quoting
qw/STRING/
Generalized quotes. See "Regexp Quote-Like
Operators" in perlop.
No array reference is created
the outer square braces around the qw()
are what create the reference
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