here's something you missed:
my provides deep binding. this means that you can create closures with my. the variable will take on the value that existed when the closure was created.
local provides shallow binding. within a closure, local will take on a value dependant on when the subroutine is called. 

sub add($);
sub ladd($);

my $addOne = add(1);
my $laddOne = ladd(1);

&$addOne(0);
&$addOne(1);
&$laddOne(0);
&$laddOne(1);

sub add($)
{
   my $add = $_[ 0 ];
   return sub
   {
      my $num = $_[ 0 ];
      my $sum = $num + $add;
      print "$num + $add = $sum\n";
   };
}

sub ladd($)
{
   local $add = $_[ 0 ];
   return sub
   {
      local $num = $_[ 0 ];
      local $sum = $num + $add;
      print "$num + $add = $sum\n";
   };
}

[download]
returns: 
0 + 1 = 1
1 + 1 = 2
0 +  = 0
1 +  = 1

[download]
jeff

In reply to Re: YAlQ: Yet Another local() Question. by jlistf
in thread YAlQ: Yet Another local() Question. by BlaisePascal

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