Was this meant as an example to illustrate questions about how to work with globs or are you simply trying to pass a value into a function
doublevalue(...)? The sample you have posted looks like a
very old Perl coding style - what version of Perl are you working with?
If the point was to pass values, the current way to pass values is to use variables and references, like this:
use strict;
use warnings;
use Data::Dumper;
{
my @arra = (10,20);
#no need for & and you can just pass a reference
#&doublevalue(*arra);
doublevalue(\@arra);
}
sub doublevalue {
#my is preferred to local
#local *a = shift ;
my $a = shift;
print Dumper @$a;
}
If you want to learn more about how type globs work, see perlref.
Best, beth
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