Hello. I tried to pass an array in my sub as a separate set of args, but discovered that the hole array is a first element of the @_. I cant pick the elements up from @_[ 0] because I use recursion and the sub waits for separate args. So I need to fix the problem only on the first call. Here is some code. 
sub permutations {
  my @array = @_;
  #my @tmp = @_;
  #if ($tmp[0][1] != 0) { for (0..$#{$tmp[0]}) { push (@array, $tmp[0]
+[$_]); } }
  #else { @array = @_; }
  if ($#array == 0) {return [ $array[0] ]; }
  my @results;
  my $element;
  foreach $element (0..$#array) {
    my @leftovers = @array;
    my $chosen_one = splice(@leftovers, $element, 1);
    foreach (&permutations(@leftovers)) {
      push(@results, [ $chosen_one, @{$_} ]);
    }
  }
  return @results;
}

@a = permutations($test[2]);

[download]
where @test is a 2-dimentional array.

In reply to Problem with passing array in a sub by SHKVal

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