| #include "espresso.h" |
| |
| |
| pset |
| do_sm_minimum_cover(A) |
| pset_family A; |
| { |
| sm_matrix *M; |
| sm_row *sparse_cover; |
| sm_element *pe; |
| pset cover; |
| register int i, base, rownum; |
| register unsigned val; |
| register pset last, p; |
| |
| M = sm_alloc(); |
| rownum = 0; |
| foreach_set(A, last, p) { |
| foreach_set_element(p, i, val, base) { |
| (void) sm_insert(M, rownum, base); |
| } |
| rownum++; |
| } |
| |
| sparse_cover = sm_minimum_cover(M, NIL(int), 1, 0); |
| sm_free(M); |
| |
| cover = set_new(A->sf_size); |
| sm_foreach_row_element(sparse_cover, pe) { |
| set_insert(cover, pe->col_num); |
| } |
| sm_row_free(sparse_cover); |
| |
| return cover; |
| } |
