/* Given a vector BSETV of N bitsets of size N, modify its contents to
be the reflexive transitive closure of what was given. This is
the same as transitive closure but with all bits on the diagonal
of the bit matrix set. */
/* Given a vector BSETV of N bitsets of size N, modify its contents to
be the reflexive transitive closure of what was given. This is
the same as transitive closure but with all bits on the diagonal
of the bit matrix set. */