I am trying to sort an array containing positive numbers, negative numbers, and zeros using Perl's built-in sort() function. The array returned from this function drops the zeros and changes the negative numbers to positive numbers. Here is what I am trying now: 
#!c:\perl\bin

use strict;
use warnings;

my @data = (1,-5,0,-8,2,0,4,7,3,6,9);

@data = sortData(@data, "Integer");

sub sortData
{
  my @data = $_[0]..$_[scalar(@_)-2];
  my $dataType = $_[scalar(@_)-1];

  if($dataType  eq 'Integer' || $dataType eq 'Float')
  {
    sort {$a <=> $b} @data;
  }
  else
  {
    sort @data;
  }
}

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I was expecting to get (-8, -5, 0, 0, 1, 2, 3, 4, 6, 7, 9), but instead I got (1, 2, 3, 4, 5, 6, 7, 8, 9). Any thoughts?

In reply to A problem sorting numbers with sort() by Anonymous Monk

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