/* The result. */
relation new_R = xnmalloc (n, sizeof *new_R);
/* END_R[I] -- next entry of NEW_R[I]. */
relation end_R = xnmalloc (n, sizeof *end_R);
/* NEDGES[I] -- total size of NEW_R[I]. */
/* The result. */
relation new_R = xnmalloc (n, sizeof *new_R);
/* END_R[I] -- next entry of NEW_R[I]. */
relation end_R = xnmalloc (n, sizeof *end_R);
/* NEDGES[I] -- total size of NEW_R[I]. */