Evaluate an operator given as a string

[koren.amit.perl@xxxxxxxxx (Amit Koren)]

Hi all.

I'm trying to pass the operators ">="  or "<="  to a subroutine,
and then use it inside an "if" statement.
What changes should i apply to the code below to make it work ?

my_evaluate ( ">=");

sub my_evaluate {
   my ($sign) = @_;
   my $x = 10;
   my $y = 20;
   if ($x $sign $y) { # want it to be treated as:  if ($x >= $y)
     ...do something...
   }
}


Thanks, Amit.