code: public static boolean get(long[] v, int off) {
      final int wordindex = off >>> LONG_LOG2_SIZE;
      return (wordindex < v.length) && (v[wordindex] & (1L << off)) != 0;
    }
docs: Set bit number "off" in v.
  <p>
  Low-endian layout for the array.
  
  @param v Buffer
  @param off Offset to set