--- lagged_fibonacci.hpp.orig	2008-11-27 02:10:55.000000000 +0800
+++ lagged_fibonacci.hpp	2009-01-31 22:05:44.000000000 +0800
@@ -319,7 +319,7 @@
     unsigned int j;
     for(j = 0; j < long_lag && first != last; ++j, ++first) {
       x[j] = RealType(0);
-      for(int k = 0; k < w/32 && first != last; ++k, ++first)
+      for(int k = 0; k < w/32 && first != last; ++k)
         x[j] += *first / pow(two32,k+1);
       if(first != last && mask != 0)
         x[j] += fmod((*first & mask) / _modulus, RealType(1));