I have code to build a hash of array references. It seems that when I add the array reference to the hash, it does not always update the number of elements in the hash correctly. I can make this same kind of call again and it seems to add in the array refernce. Does anyone know of an issue with adding array references to a hash. My code snippet is as follows: 
foreach $key (keys %extractDataFunctionHash)
   {
      # Loop over the data in each lines array and extract the specifi
+c
      # data for that sample. Call the function defined for that key.
      #
      #printf("calling has function: %s\n", $key);
      $extractDataFunctionHash{$key}($key, $DNRef, $EDHRef);
      $numInHash = %$EDHRef;
      printf("\nPASS: Data extraction complete for %s...%d items in ha
+sh.\n", $key, $numInHash);
   }

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The function references in the function hash each do basically the same work other than some simple formatting differences. Each one at the end of its array data collection/creation has the following statement: 
$EDHRef->{$key} = \@extractedLinesArray;

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When I print out the number of elements in the hash each time in the loop it indicates 1 element, then 1 element, then 2, then 3, then 4, then 5. There should be 6 elements in the hash. I have put printfs all around this line of code. The first function (there are 6 calls to 6 difference functions in the function hash) call adds 1 element in the hash and the number in hash (1) is correct. On the second call, it indicates there is only 1 element in the hash again. Afterwards it increments as it should up to 5 instead of 6. I am totally confused and need help. thanks...

In reply to hashes of array references by tobyperl

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