Hi, i am writing some code and moving subroutines to a package. By this i encountered following problem when sorting hashes by value. The values itself is a line from a CSV file. To get the value from the line i am using a function grabdataentry, which takes the hash by ref, gets the key and the entry position of the value to sort by. Here the source: 
sub grabdataentry
{
my $href=shift;
my %dhash=%{$href};
my $skey=shift;
my $pos=shift;

my @list=split /;/, $dhash{$skey};
  
  return $list[$pos];

}

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When hiding this sub in package and calling like this 
  foreach my $key (sort { grabdataentry(\%hash,$a,0) cmp grabdataentry
+(\%hash,$b,0) }  keys %hash)

[download]
it does not work anymore. If the sub stays inside the caller package it works. Whats wrong?



May PERL live as long the last F77 program runs.

In reply to hash ref package by yucani

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