Cut non-necessary temps from generate_integer

neilslater · May 14, 2014 · 84c7f69 · 84c7f69
1 parent 7cc3096
commit 84c7f69
Showing 1 changed file with 1 addition and 5 deletions.
diff --git a/lib/pool_of_entropy/core_prng.rb b/lib/pool_of_entropy/core_prng.rb
@@ -117,19 +117,15 @@ def read_float *adjustments
   def generate_integer top, *adjustments
     power = 1
     sum = 0
-    lower_bound = 0
     words = []
 
     loop do
       words = read_bytes( *adjustments ).unpack('L>*') if words.empty?
       sum = 2**32 * sum + words.shift
       power *= 2**32
       lower_bound = sum * top / power
-      upper_bound = ( (sum + 1) * top ) / power
-      break if lower_bound == upper_bound
+      break lower_bound if lower_bound == ( (sum + 1) * top ) / power
     end
-
-    lower_bound
   end
 
   private