explicitly supplied comparison function. If the sign returned is 1 or -1,
the container is sorted after the operation. */
template <class It>
explicitly supplied comparison function. If the sign returned is 1 or -1,
the container is sorted after the operation. */
template <class It>
/* Implementation of shaker sort, only compares adjacent elements. */
template <class It, class Cmp>
/* Implementation of shaker sort, only compares adjacent elements. */
template <class It, class Cmp>