round method takes an argument in ruby 1.9 but not in 1.8

olbrich · Sep 26, 2012 · 0beab2a · 0beab2a
1 parent 9bc0638
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diff --git a/README.md b/README.md
@@ -1,6 +1,7 @@
 # Ruby Units
 
 [![Dependency Status](https://gemnasium.com/olbrich/ruby-units.png)](https://gemnasium.com/olbrich/ruby-units)
+[![Build Status](https://secure.travis-ci.org/olbrich/ruby-units.png)](http://travis-ci.org/olbrich/ruby-units)
 
 Kevin C. Olbrich, Ph.D. 
 

diff --git a/lib/ruby_units/unit.rb b/lib/ruby_units/unit.rb
@@ -1102,10 +1102,18 @@ def floor
     return Unit.new(@scalar.floor, @numerator, @denominator)
   end
 
-  # @return [Numeric,Unit]
-  def round(ndigits = 0)
-    return @scalar.round(ndigits) if self.unitless?
-    return Unit.new(@scalar.round(ndigits), @numerator, @denominator)
+  if RUBY_VERSION < '1.9'
+    # @return [Numeric,Unit]
+    def round
+      return @scalar.round if self.unitless?
+      return Unit.new(@scalar.round, @numerator, @denominator)
+    end
+  else
+    # @return [Numeric,Unit]
+    def round(ndigits = 0)
+      return @scalar.round(ndigits) if self.unitless?
+      return Unit.new(@scalar.round(ndigits), @numerator, @denominator)
+    end
   end
 
   # @return [Numeric, Unit]