Function blake2b_increment_counter

freebsd/contrib/libb2/blake2b-ref.c:75–80

}

static inline int blake2b_increment_counter( blake2b_state *S, const uint64_t inc )
{
  S->t[0] += inc;
  S->t[1] += ( S->t[0] < inc );
  return 0;
}