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in reply to Re^6: Variable number of foreach loops
in thread Variable number of foreach loops

That's not very clear. Could you post a little code to show me what you mean?

For example, if you have code like this:

my( @a, @b, @c );

## stuff here to fill the arrays

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What happens if you need another array @d?

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Re^8: Variable number of foreach loops
by abhay180 (Sexton) on Nov 28, 2013 at 18:21 UTC

    Here i have pasted sample code in which i have various combinations being generated using multiple arrays. In the code , gen_loops() is ur nfor(). I want to be able to call gen_loops() for multiple number of array elements. 

    @X = ("X1","X2","X3");
@Y = ("Y1","Y2","Y3");
@Z = ("Z1","Z2","Z3");

$HDR_SCHEMA_XY = "X::Y";
print_combinations($HDR_SCHEMA_XY);

$HDR_SCHEMA_XYZ = "X::Y::Z";
print_combinations($HDR_SCHEMA_XYZ);

sub print_combinations {
  my $sub_hdrs = shift;
  my @sub_hdrs = split(/::/,$sub_hdrs);
  my $subh_count=0;
  
  foreach my $i (@sub_hdrs) {
      @{"array_".$subh_count} =  @{ $i };
      $subh_count++;

  }
  gen_loops(2,\@array_0,\@array_1);
}

sub gen_loops {
    my $loop_count = shift;
    
    if ($loop_count==0) {
        print join "+",@_,"\n";
    } else {
                for my $i ( @{ shift() } ) {
         gen_loops($loop_count-1,$iter_count,@_,$i)
           }
    }
}

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[d/l]
      I want to be able to call gen_loops() for multiple number of array elements.

      I still do not understand what problem you are having?

      If you want to call it with 3 arrays: call it with 3.

      If you want to call it with 4 arrays; call it with 4.

      If you ....

      Instead of repeating the same thing over and over; try showing us what you are trying to do that isn't working.

      Ie. DESCRIBE THE PROBLEM YOU ARE HAVING?

      With the rise and rise of 'Social' network sites: 'Computers are making people easier to use everyday'
      Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
      "Science is about questioning the status quo. Questioning authority".
      In the absence of evidence, opinion is indistinguishable from prejudice.
[reply]
        Dude, Not sure what i have repeated again and again..you asked for code...i showed you. Not sure how else you want to represent. The arguments i am passing to print_comb() function can create "variable" number of arrays. So i should be able to pass this variable-arrays to gen_loops(). I cannot have a static call like: 
         gen_loops(2,\@array_1,\@array_2)

        [download]
        and i want it like... 
        gen_loops($count, < "$count" number of arrays>)

        [download]
        Not sure if i am able to explain. Anyways i have figured it out in some round-about manner. Thanks for your help.
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