2 * Copyright 2008-2009 Katholieke Universiteit Leuven
4 * Use of this software is governed by the GNU LGPLv2.1 license
6 * Written by Sven Verdoolaege, K.U.Leuven, Departement
7 * Computerwetenschappen, Celestijnenlaan 200A, B-3001 Leuven, Belgium
11 #include <isl_map_private.h>
12 #include "isl_equalities.h"
15 #include <isl_mat_private.h>
17 /* The input of this program is the same as that of the "polytope_scan"
18 * program from the barvinok distribution.
20 * Constraints of set is PolyLib format.
22 * The input set is assumed to be bounded.
26 struct isl_scan_callback callback;
27 struct isl_mat *samples;
30 static int scan_samples_add_sample(struct isl_scan_callback *cb,
31 __isl_take isl_vec *sample)
33 struct scan_samples *ss = (struct scan_samples *)cb;
35 ss->samples = isl_mat_extend(ss->samples, ss->samples->n_row + 1,
40 isl_seq_cpy(ss->samples->row[ss->samples->n_row - 1],
41 sample->el, sample->size);
50 static struct isl_mat *isl_basic_set_scan_samples(struct isl_basic_set *bset)
54 struct scan_samples ss;
56 ctx = isl_basic_set_get_ctx(bset);
57 dim = isl_basic_set_total_dim(bset);
58 ss.callback.add = scan_samples_add_sample;
59 ss.samples = isl_mat_alloc(ctx, 0, 1 + dim);
63 if (isl_basic_set_scan(bset, &ss.callback) < 0) {
64 isl_mat_free(ss.samples);
70 isl_basic_set_free(bset);
74 static struct isl_mat *isl_basic_set_samples(struct isl_basic_set *bset)
77 struct isl_mat *samples;
83 return isl_basic_set_scan_samples(bset);
85 bset = isl_basic_set_remove_equalities(bset, &T, NULL);
86 samples = isl_basic_set_scan_samples(bset);
87 return isl_mat_product(samples, isl_mat_transpose(T));
90 int main(int argc, char **argv)
92 struct isl_ctx *ctx = isl_ctx_alloc();
93 struct isl_basic_set *bset;
94 struct isl_mat *samples;
96 bset = isl_basic_set_read_from_file(ctx, stdin, 0);
97 samples = isl_basic_set_samples(bset);
98 isl_mat_print_internal(samples, stdout, 0);
99 isl_mat_free(samples);