1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
|
/*
* Revision Control Information
*
* $Source$
* $Author$
* $Revision$
* $Date$
*
*/
#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;
}
|
