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#
# round.rb
#
module Puppet::Parser::Functions
newfunction(:round, :type => :rvalue, :doc => <<-DOC
Rounds a number to the nearest integer
*Examples:*
round(2.9)
returns: 3
round(2.4)
returns: 2
DOC
) do |args|
raise Puppet::ParseError, "round(): Wrong number of arguments given #{args.size} for 1" if args.size != 1
raise Puppet::ParseError, "round(): Expected a Numeric, got #{args[0].class}" unless args[0].is_a? Numeric
value = args[0]
if value >= 0
Integer(value + 0.5)
else
Integer(value - 0.5)
end
end
end
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