3 #include "isl_piplib.h"
4 #include "isl_map_piplib.h"
6 enum isl_lp_result isl_pip_solve_lp(struct isl_basic_map *bmap, int maximize,
7 isl_int *f, isl_int denom, isl_int *opt,
10 enum isl_lp_result res = isl_lp_ok;
11 PipMatrix *domain = NULL;
16 total = isl_basic_map_total_dim(bmap);
17 domain = isl_basic_map_to_pip(bmap, 0, 1, 0);
20 entier_set_si(domain->p[0][1], -1);
21 isl_int_set(domain->p[0][domain->NbColumns - 1], f[0]);
22 isl_seq_cpy_to_pip(domain->p[0]+2, f+1, total);
24 options = pip_options_init();
27 options->Urs_unknowns = -1;
28 options->Maximize = maximize;
30 sol = pip_solve(domain, NULL, -1, options);
31 pip_options_free(options);
37 else if (entier_zero_p(sol->list->vector->the_deno[0]))
38 res = isl_lp_unbounded;
41 isl_seq_cpy_from_pip(opt,
42 &sol->list->vector->the_vector[0], 1);
43 isl_seq_cpy_from_pip(opt_denom,
44 &sol->list->vector->the_deno[0], 1);
46 mpz_fdiv_q(*opt, sol->list->vector->the_vector[0],
47 sol->list->vector->the_deno[0]);
49 mpz_cdiv_q(*opt, sol->list->vector->the_vector[0],
50 sol->list->vector->the_deno[0]);
52 pip_matrix_free(domain);
57 pip_matrix_free(domain);