4 #include "isl_map_private.h"
6 static char *next_line(FILE *input, char *line, unsigned len)
11 if (!(p = fgets(line, len, input)))
13 while (isspace(*p) && *p != '\n')
15 } while (*p == '#' || *p == '\n');
20 struct isl_basic_set *isl_basic_set_read_from_file(struct isl_ctx *ctx,
21 FILE *input, unsigned input_format)
23 struct isl_basic_set *bset = NULL;
25 unsigned n_row, n_col;
31 isl_assert(ctx, input_format == ISL_FORMAT_POLYLIB, return NULL);
32 isl_assert(ctx, next_line(input, line, sizeof(line)), return NULL);
33 isl_assert(ctx, sscanf(line, "%u %u", &n_row, &n_col) == 2, return NULL);
34 isl_assert(ctx, n_col >= 2, return NULL);
36 bset = isl_basic_set_alloc(ctx, 0, dim, 0, n_row, n_row);
39 for (i = 0; i < n_row; ++i) {
46 p = next_line(input, line, sizeof(line));
47 isl_assert(ctx, p, goto error);
48 n = sscanf(p, "%u%n", &type, &offset);
49 isl_assert(ctx, n != 0, goto error);
51 isl_assert(ctx, type == 0 || type == 1, goto error);
53 k = isl_basic_set_alloc_equality(ctx, bset);
56 k = isl_basic_set_alloc_inequality(ctx, bset);
59 isl_assert(ctx, k >= 0, goto error);
60 for (j = 0; j < dim; ++j) {
61 n = sscanf(p, "%s%n", val, &offset);
62 isl_assert(ctx, n != 0, goto error);
63 isl_int_read(c[1+j], val);
66 n = sscanf(p, "%s%n", val, &offset);
67 isl_assert(ctx, n != 0, goto error);
68 isl_int_read(c[0], val);
70 bset = isl_basic_set_simplify(ctx, bset);
71 bset = isl_basic_set_finalize(ctx, bset);
74 isl_basic_set_free(ctx, bset);