lib/core/facets/enumerable/sum.rb in facets-2.9.2 vs lib/core/facets/enumerable/sum.rb in facets-2.9.3

@@ -3,12 +3,14 @@
   # Uses #+ to sum the enumerated elements.
   #
   #   [1,2,3].sum  #=> 6
   #   [3,3,3].sum  #=> 9
   #
-  def sum(identity = 0, &block)
+  # @author Dawid Marcin Grzesiak (bug fix)
+
+  def sum(identity=0, &block)
     if block_given?
-      map(&block).sum
+      map(&block).sum(identity)
     else
       inject{ |sum, element| sum + element } || identity
     end
   end