I wanna write a general function/sub that will arbitrarily compose/update a hash of arrays, say, %distri. My current design is to pass an element of %distri, which should be an array reference, to the sub, and assign an array to it (the reference) in the sub. 

use strict;

# Hash of arrays.
my %distri;
my @probExpr=qw(c_K n_cK);
foreach (@probExpr) {
    print "$_\n";
    #%distri{$_}=();
    %distri{$_}=[];
}
&hashOfArraysRef(\$distri{$probExpr[0]});

print "\$distri{$probExpr[0]}[5]\t";
print "$distri{$probExpr[0]}[5]\n";
#&aOa;
1;

sub hashOfArraysRef #(\@)
{
    my $arrayRef=$_[0];
    # Dereference the passed-in reference to an array.
    @$arrayRef=(0..9);
    #@$arrayRef=[0..9];
}

[download]
But it can't compile:
syntax error at ./dataStructure.pl line 12, near "%distri{"
Can't use global @_ in "my" at ./dataStructure.pl line 23, near "=$_"

In reply to Function composing a hash of arrays. by dislimit

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