File Coverage

lib/Spreadsheet/Engine/Function/ROUND.pm

Criterion	Covered	Total	%
statement	17	17	100.0
branch	2	2	100.0
condition	2	2	100.0
subroutine	7	7	100.0
pod	3	3	100.0
total	31	31	100.0

package Spreadsheet::Engine::Function::ROUND;

use strict;
use warnings;

use base 'Spreadsheet::Engine::Fn::math';

sub argument_count { -1 => 2 }
sub signature { 'n', 'n' }
sub _result_type_key { 'oneargnumeric' }

sub calculate {
  my ($self, $value, $precision) = @_;
  my $rounding = ($value >= 0 ? 0.5 : -0.5);
  my $decimalscale = 10**int($precision || 0);
  my $scaledvalue = int($value * $decimalscale + $rounding);
  return $scaledvalue / $decimalscale;
}

1;

__END__