(Firstly, thanks to the monks above for more efficient routines.)

The statement: push(@deck, splice(@_,$rand,1)); is what puzzles me (in my code).

After writing a sub:

my @arr = (5 .. 10);
call_sub(@arr);
sub call_sub {
  print "\n\n@_\n\n";
  for (0 .. 4) {
    print "$_\t@_\n";
  }
  print "\n\n";
}

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I believe that $_ is a separate variable from @_ (and you can reference a scalar in @_ with $_[$sc]).

I had always assumed that $_ and @_ were connected, and that @_ referenced the elements in the for list as an array (which it doesn't).

It's a rather new discovery for me. Looking at how useful this is (rather than having to make temporary arrays in all your subroutines to carry parameters before going into a for loop), I see why it was done that way.

Dave.

In reply to Re: Re: Unexpected value of $_ in a for loop. by David Caughell
in thread Unexpected value of $_ in a for loop. by David Caughell

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