my $float = shift;
  my $dec = shift;

##</code><code>##

#!/usr/bin/perl
use strict;
use warnings;

my $number = defined $ARGV[0] ? $ARGV[0] : 1.2549999999999999;
my $places = defined $ARGV[1] ? $ARGV[1] : 2;

printf "%.20f\n", $number; 
print round( $number , $places ), "\n";


sub round {
  my ($float, $decimals) = @_;
  
  my $int_leftShiftFloat = int( $float * 10**($decimals + 1) );
  my $int_Round = int( ( $int_leftShiftFloat + 5 ) / 10 );
  my $float_rightShiftInt = $int_Round / 10**$decimals;
  my $float_Result = $float_rightShiftInt;
  
  return $float_Result
}

##</code><code>##

1.25499999999999990000
1.26