Hello, The following code successfully prints all content of a hash of arrays: 
       for $x ( keys %HoA ) {
                print "$x: ";
                for $i ( 0 .. $#{ $HoA{$x} } ) {
                    print "$HoA{$x}[$i] ";
                }
       }

Output looks like this:
Keys:     array 
8001: bp ne sc ax br le no ns mn sl lt sh lw ni lu dl 
5022: bp ne sc ax br le no ns mn sl lt sh lw ni lu dl 
1018: bp ne br no lt lw ni l

I pass the %HoA to a function and want to print all the elements of th
+e %HoA—but I’m failing to do this inside the function. This is my pro
+blem.  (The same function that receives the HoA must also process an 
+array. )


some_function(\%HoA);   # could be some_function(\@array)

sub some_function{
       $aref = shift;
       if (ref($aref) eq “ARRAY”){
      
        Do something with array---I got this muchworking! 

      } elsif (ref($aref) eq “HASH”){
            
    #This foreach of the hash ref doesn't print anything!
            foreach $key ( keys %{$aref} ){
                    print “key: $key…..”;
                    for ( $i = 0; $i <=100; $i++ ){
                          print “      $aref->{$key}[$i] “;
     }
}

[download]
Thanks for any clues. John

In reply to accessing elements of reference to hash of arrays by johnguillory

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