lib/kl/primitives/vectors.rb in shen-ruby-0.4.1 vs lib/kl/primitives/vectors.rb in shen-ruby-0.5.0

@@ -1,9 +1,10 @@
 module Kl
   module Primitives
     module Vectors
       def absvector(n)
         raise Kl::Error, "#{n} is not a number" unless n.kind_of? Fixnum
+        raise Kl::Error, "#{n} must be >= 0" unless n >= 0
         Kl::Absvector.new(n)
       end
 
       define_method 'address->' do |v, n, value|
         raise Kl::Error, "#{v} is not a vector" unless v.kind_of? Kl::Absvector