2 * Copyright 2008-2009 Katholieke Universiteit Leuven
3 * Copyright 2010 INRIA Saclay
5 * Use of this software is governed by the GNU LGPLv2.1 license
7 * Written by Sven Verdoolaege, K.U.Leuven, Departement
8 * Computerwetenschappen, Celestijnenlaan 200A, B-3001 Leuven, Belgium
9 * and INRIA Saclay - Ile-de-France, Parc Club Orsay Universite,
10 * ZAC des vignes, 4 rue Jacques Monod, 91893 Orsay, France
19 #include "isl_stream.h"
20 #include "isl_map_private.h"
25 struct variable *next;
34 static struct vars *vars_new(struct isl_ctx *ctx)
37 v = isl_alloc_type(ctx, struct vars);
46 static void variable_free(struct variable *var)
49 struct variable *next = var->next;
56 static void vars_free(struct vars *v)
64 static void vars_drop(struct vars *v, int n)
75 struct variable *next = var->next;
83 static struct variable *variable_new(struct vars *v, const char *name, int len,
87 var = isl_alloc_type(v->ctx, struct variable);
90 var->name = strdup(name);
91 var->name[len] = '\0';
100 static int vars_pos(struct vars *v, const char *s, int len)
107 for (q = v->v; q; q = q->next) {
108 if (strncmp(q->name, s, len) == 0 && q->name[len] == '\0')
115 v->v = variable_new(v, s, len, v->n);
123 static __isl_give isl_basic_map *set_name(__isl_take isl_basic_map *bmap,
124 enum isl_dim_type type, unsigned pos, char *name)
133 prime = strchr(name, '\'');
136 bmap->dim = isl_dim_set_name(bmap->dim, type, pos, name);
145 isl_basic_map_free(bmap);
149 static struct isl_vec *accept_affine(struct isl_stream *s, struct vars *v)
151 struct isl_token *tok = NULL;
155 aff = isl_vec_alloc(v->ctx, 1 + v->n);
156 isl_seq_clr(aff->el, aff->size);
161 tok = isl_stream_next_token(s);
163 isl_stream_error(s, NULL, "unexpected EOF");
166 if (tok->type == ISL_TOKEN_IDENT) {
168 int pos = vars_pos(v, tok->u.s, -1);
172 isl_stream_error(s, tok, "unknown identifier");
176 isl_int_add_ui(aff->el[1 + pos],
177 aff->el[1 + pos], 1);
179 isl_int_sub_ui(aff->el[1 + pos],
180 aff->el[1 + pos], 1);
182 } else if (tok->type == ISL_TOKEN_VALUE) {
183 struct isl_token *tok2;
186 tok2 = isl_stream_next_token(s);
187 if (tok2 && tok2->type == ISL_TOKEN_IDENT) {
188 pos = vars_pos(v, tok2->u.s, -1);
192 isl_stream_error(s, tok2,
193 "unknown identifier");
194 isl_token_free(tok2);
197 isl_token_free(tok2);
199 isl_stream_push_token(s, tok2);
201 isl_int_neg(tok->u.v, tok->u.v);
202 isl_int_add(aff->el[1 + pos],
203 aff->el[1 + pos], tok->u.v);
205 } else if (tok->type == '-') {
207 } else if (tok->type == '+') {
210 isl_stream_push_token(s, tok);
222 static __isl_give isl_basic_map *read_var_list(struct isl_stream *s,
223 __isl_take isl_basic_map *bmap, enum isl_dim_type type, struct vars *v)
226 struct isl_token *tok;
228 while ((tok = isl_stream_next_token(s)) != NULL) {
231 if (tok->type == ISL_TOKEN_IDENT) {
233 int p = vars_pos(v, tok->u.s, -1);
240 bmap = isl_basic_map_add(bmap, type, 1);
241 bmap = set_name(bmap, type, i, v->v->name);
243 } else if (tok->type == ISL_TOKEN_IDENT ||
244 tok->type == ISL_TOKEN_VALUE) {
247 if (type == isl_dim_param) {
248 isl_stream_error(s, tok,
249 "expecting unique identifier");
252 isl_stream_push_token(s, tok);
254 vec = accept_affine(s, v);
257 v->v = variable_new(v, "", 0, v->n);
261 bmap = isl_basic_map_add(bmap, type, 1);
262 bmap = isl_basic_map_extend_constraints(bmap, 1, 0);
263 k = isl_basic_map_alloc_equality(bmap);
265 isl_seq_cpy(bmap->eq[k], vec->el, vec->size);
266 isl_int_set_si(bmap->eq[k][vec->size], -1);
274 tok = isl_stream_next_token(s);
275 if (!tok || tok->type != ',')
282 isl_stream_push_token(s, tok);
287 isl_basic_map_free(bmap);
291 static __isl_give isl_mat *accept_affine_list(struct isl_stream *s,
296 struct isl_token *tok = NULL;
298 vec = accept_affine(s, v);
299 mat = isl_mat_from_row_vec(vec);
304 tok = isl_stream_next_token(s);
306 isl_stream_error(s, NULL, "unexpected EOF");
309 if (tok->type != ',') {
310 isl_stream_push_token(s, tok);
315 vec = accept_affine(s, v);
316 mat = isl_mat_vec_concat(mat, vec);
327 static struct isl_basic_map *add_div_definition(struct isl_stream *s,
328 struct vars *v, struct isl_basic_map *bmap, int k)
330 struct isl_token *tok;
334 if (isl_stream_eat(s, '['))
337 tok = isl_stream_next_token(s);
340 if (tok->type == '(') {
344 isl_stream_push_token(s, tok);
346 aff = accept_affine(s, v);
350 isl_seq_cpy(bmap->div[k] + 1, aff->el, aff->size);
354 if (seen_paren && isl_stream_eat(s, ')'))
356 if (isl_stream_eat(s, '/'))
359 tok = isl_stream_next_token(s);
362 if (tok->type != ISL_TOKEN_VALUE) {
363 isl_stream_error(s, tok, "expected denominator");
364 isl_stream_push_token(s, tok);
367 isl_int_set(bmap->div[k][0], tok->u.v);
370 if (isl_stream_eat(s, ']'))
373 if (isl_basic_map_add_div_constraints(bmap, k) < 0)
378 isl_basic_map_free(bmap);
382 static struct isl_basic_map *read_defined_var_list(struct isl_stream *s,
383 struct vars *v, struct isl_basic_map *bmap)
385 struct isl_token *tok;
387 while ((tok = isl_stream_next_token(s)) != NULL) {
391 unsigned total = isl_basic_map_total_dim(bmap);
393 if (tok->type != ISL_TOKEN_IDENT)
396 p = vars_pos(v, tok->u.s, -1);
400 isl_stream_error(s, tok, "expecting unique identifier");
405 bmap = isl_basic_map_cow(bmap);
406 bmap = isl_basic_map_extend_dim(bmap, isl_dim_copy(bmap->dim),
409 if ((k = isl_basic_map_alloc_div(bmap)) < 0)
411 isl_seq_clr(bmap->div[k], 1 + 1 + total);
413 tok = isl_stream_next_token(s);
414 if (tok && tok->type == '=') {
416 bmap = add_div_definition(s, v, bmap, k);
417 tok = isl_stream_next_token(s);
420 if (!tok || tok->type != ',')
426 isl_stream_push_token(s, tok);
431 isl_basic_map_free(bmap);
435 static __isl_give isl_basic_map *read_tuple(struct isl_stream *s,
436 __isl_take isl_basic_map *bmap, enum isl_dim_type type, struct vars *v)
438 struct isl_token *tok;
440 tok = isl_stream_next_token(s);
441 if (!tok || tok->type != '[') {
442 isl_stream_error(s, tok, "expecting '['");
446 bmap = read_var_list(s, bmap, type, v);
447 tok = isl_stream_next_token(s);
448 if (!tok || tok->type != ']') {
449 isl_stream_error(s, tok, "expecting ']'");
458 isl_basic_map_free(bmap);
462 static struct isl_basic_map *add_constraints(struct isl_stream *s,
463 struct vars *v, struct isl_basic_map *bmap);
465 static struct isl_basic_map *add_exists(struct isl_stream *s,
466 struct vars *v, struct isl_basic_map *bmap)
468 struct isl_token *tok;
475 tok = isl_stream_next_token(s);
478 if (tok->type == '(') {
482 isl_stream_push_token(s, tok);
484 bmap = read_defined_var_list(s, v, bmap);
488 if (isl_stream_eat(s, ':'))
490 bmap = add_constraints(s, v, bmap);
491 if (seen_paren && isl_stream_eat(s, ')'))
495 isl_basic_map_free(bmap);
499 static __isl_give isl_basic_map *construct_constraint(
500 __isl_take isl_basic_map *bmap, enum isl_token_type type,
501 isl_int *left, isl_int *right)
509 len = 1 + isl_basic_map_total_dim(bmap);
512 k = isl_basic_map_alloc_inequality(bmap);
515 if (type == ISL_TOKEN_LE)
516 isl_seq_combine(bmap->ineq[k], ctx->negone, left,
519 else if (type == ISL_TOKEN_GE)
520 isl_seq_combine(bmap->ineq[k], ctx->one, left,
523 else if (type == ISL_TOKEN_LT) {
524 isl_seq_combine(bmap->ineq[k], ctx->negone, left,
527 isl_int_sub_ui(bmap->ineq[k][0], bmap->ineq[k][0], 1);
528 } else if (type == ISL_TOKEN_GT) {
529 isl_seq_combine(bmap->ineq[k], ctx->one, left,
532 isl_int_sub_ui(bmap->ineq[k][0], bmap->ineq[k][0], 1);
534 isl_seq_combine(bmap->ineq[k], ctx->one, left,
537 isl_basic_map_inequality_to_equality(bmap, k);
542 isl_basic_map_free(bmap);
546 static int is_comparator(struct isl_token *tok)
563 static struct isl_basic_map *add_constraint(struct isl_stream *s,
564 struct vars *v, struct isl_basic_map *bmap)
567 unsigned total = isl_basic_map_total_dim(bmap);
568 struct isl_token *tok = NULL;
569 struct isl_mat *aff1 = NULL, *aff2 = NULL;
571 tok = isl_stream_next_token(s);
574 if (tok->type == ISL_TOKEN_EXISTS) {
576 return add_exists(s, v, bmap);
578 isl_stream_push_token(s, tok);
581 bmap = isl_basic_map_cow(bmap);
583 aff1 = accept_affine_list(s, v);
586 tok = isl_stream_next_token(s);
587 if (!is_comparator(tok)) {
588 isl_stream_error(s, tok, "missing operator");
590 isl_stream_push_token(s, tok);
594 isl_assert(aff1->ctx, aff1->n_col == 1 + total, goto error);
596 aff2 = accept_affine_list(s, v);
599 isl_assert(aff2->ctx, aff2->n_col == 1 + total, goto error);
601 bmap = isl_basic_map_extend_constraints(bmap, 0,
602 aff1->n_row * aff2->n_row);
603 for (i = 0; i < aff1->n_row; ++i)
604 for (j = 0; j < aff2->n_row; ++j)
605 bmap = construct_constraint(bmap, tok->type,
606 aff1->row[i], aff2->row[j]);
611 tok = isl_stream_next_token(s);
612 if (!is_comparator(tok)) {
614 isl_stream_push_token(s, tok);
626 isl_basic_map_free(bmap);
630 static struct isl_basic_map *add_constraints(struct isl_stream *s,
631 struct vars *v, struct isl_basic_map *bmap)
633 struct isl_token *tok;
636 bmap = add_constraint(s, v, bmap);
639 tok = isl_stream_next_token(s);
641 isl_stream_error(s, NULL, "unexpected EOF");
644 if (tok->type != ISL_TOKEN_AND)
648 isl_stream_push_token(s, tok);
654 isl_basic_map_free(bmap);
658 static struct isl_basic_map *read_disjunct(struct isl_stream *s,
659 struct vars *v, __isl_take isl_dim *dim)
662 struct isl_token *tok;
663 struct isl_basic_map *bmap;
665 bmap = isl_basic_map_alloc_dim(dim, 0, 0, 0);
669 tok = isl_stream_next_token(s);
672 if (tok->type == '(') {
676 isl_stream_push_token(s, tok);
678 bmap = add_constraints(s, v, bmap);
679 bmap = isl_basic_map_simplify(bmap);
680 bmap = isl_basic_map_finalize(bmap);
682 if (seen_paren && isl_stream_eat(s, ')'))
687 isl_basic_map_free(bmap);
691 static struct isl_map *read_disjuncts(struct isl_stream *s,
692 struct vars *v, __isl_take isl_dim *dim)
694 struct isl_token *tok;
697 tok = isl_stream_next_token(s);
699 isl_stream_error(s, NULL, "unexpected EOF");
702 if (tok->type == '}') {
703 isl_stream_push_token(s, tok);
704 return isl_map_universe(dim);
706 isl_stream_push_token(s, tok);
708 map = isl_map_empty(isl_dim_copy(dim));
710 struct isl_basic_map *bmap;
713 bmap = read_disjunct(s, v, isl_dim_copy(dim));
714 map = isl_map_union(map, isl_map_from_basic_map(bmap));
716 vars_drop(v, v->n - n);
718 tok = isl_stream_next_token(s);
719 if (!tok || tok->type != ISL_TOKEN_OR)
724 isl_stream_push_token(s, tok);
733 static int polylib_pos_to_isl_pos(__isl_keep isl_basic_map *bmap, int pos)
735 if (pos < isl_basic_map_dim(bmap, isl_dim_out))
736 return 1 + isl_basic_map_dim(bmap, isl_dim_param) +
737 isl_basic_map_dim(bmap, isl_dim_in) + pos;
738 pos -= isl_basic_map_dim(bmap, isl_dim_out);
740 if (pos < isl_basic_map_dim(bmap, isl_dim_in))
741 return 1 + isl_basic_map_dim(bmap, isl_dim_param) + pos;
742 pos -= isl_basic_map_dim(bmap, isl_dim_in);
744 if (pos < isl_basic_map_dim(bmap, isl_dim_div))
745 return 1 + isl_basic_map_dim(bmap, isl_dim_param) +
746 isl_basic_map_dim(bmap, isl_dim_in) +
747 isl_basic_map_dim(bmap, isl_dim_out) + pos;
748 pos -= isl_basic_map_dim(bmap, isl_dim_div);
750 if (pos < isl_basic_map_dim(bmap, isl_dim_param))
756 static __isl_give isl_basic_map *basic_map_read_polylib_constraint(
757 struct isl_stream *s, __isl_take isl_basic_map *bmap)
760 struct isl_token *tok;
770 nparam = isl_basic_map_dim(bmap, isl_dim_param);
771 dim = isl_basic_map_dim(bmap, isl_dim_out);
773 tok = isl_stream_next_token(s);
774 if (!tok || tok->type != ISL_TOKEN_VALUE) {
775 isl_stream_error(s, tok, "expecting coefficient");
777 isl_stream_push_token(s, tok);
780 if (!tok->on_new_line) {
781 isl_stream_error(s, tok, "coefficient should appear on new line");
782 isl_stream_push_token(s, tok);
786 type = isl_int_get_si(tok->u.v);
789 isl_assert(s->ctx, type == 0 || type == 1, goto error);
791 k = isl_basic_map_alloc_equality(bmap);
794 k = isl_basic_map_alloc_inequality(bmap);
800 for (j = 0; j < 1 + isl_basic_map_total_dim(bmap); ++j) {
802 tok = isl_stream_next_token(s);
803 if (!tok || tok->type != ISL_TOKEN_VALUE) {
804 isl_stream_error(s, tok, "expecting coefficient");
806 isl_stream_push_token(s, tok);
809 if (tok->on_new_line) {
810 isl_stream_error(s, tok,
811 "coefficient should not appear on new line");
812 isl_stream_push_token(s, tok);
815 pos = polylib_pos_to_isl_pos(bmap, j);
816 isl_int_set(c[pos], tok->u.v);
822 isl_basic_map_free(bmap);
826 static __isl_give isl_basic_map *basic_map_read_polylib(struct isl_stream *s,
830 struct isl_token *tok;
831 struct isl_token *tok2;
834 unsigned in = 0, out, local = 0;
835 struct isl_basic_map *bmap = NULL;
840 tok = isl_stream_next_token(s);
842 isl_stream_error(s, NULL, "unexpected EOF");
845 tok2 = isl_stream_next_token(s);
848 isl_stream_error(s, NULL, "unexpected EOF");
851 n_row = isl_int_get_si(tok->u.v);
852 n_col = isl_int_get_si(tok2->u.v);
853 on_new_line = tok2->on_new_line;
854 isl_token_free(tok2);
856 isl_assert(s->ctx, !on_new_line, return NULL);
857 isl_assert(s->ctx, n_row >= 0, return NULL);
858 isl_assert(s->ctx, n_col >= 2 + nparam, return NULL);
859 tok = isl_stream_next_token_on_same_line(s);
861 if (tok->type != ISL_TOKEN_VALUE) {
862 isl_stream_error(s, tok,
863 "expecting number of output dimensions");
864 isl_stream_push_token(s, tok);
867 out = isl_int_get_si(tok->u.v);
870 tok = isl_stream_next_token_on_same_line(s);
871 if (!tok || tok->type != ISL_TOKEN_VALUE) {
872 isl_stream_error(s, tok,
873 "expecting number of input dimensions");
875 isl_stream_push_token(s, tok);
878 in = isl_int_get_si(tok->u.v);
881 tok = isl_stream_next_token_on_same_line(s);
882 if (!tok || tok->type != ISL_TOKEN_VALUE) {
883 isl_stream_error(s, tok,
884 "expecting number of existentials");
886 isl_stream_push_token(s, tok);
889 local = isl_int_get_si(tok->u.v);
892 tok = isl_stream_next_token_on_same_line(s);
893 if (!tok || tok->type != ISL_TOKEN_VALUE) {
894 isl_stream_error(s, tok,
895 "expecting number of parameters");
897 isl_stream_push_token(s, tok);
900 nparam = isl_int_get_si(tok->u.v);
902 if (n_col != 1 + out + in + local + nparam + 1) {
903 isl_stream_error(s, NULL,
904 "dimensions don't match");
908 out = n_col - 2 - nparam;
909 bmap = isl_basic_map_alloc(s->ctx, nparam, in, out, local, n_row, n_row);
913 for (i = 0; i < local; ++i) {
914 int k = isl_basic_map_alloc_div(bmap);
919 for (i = 0; i < n_row; ++i)
920 bmap = basic_map_read_polylib_constraint(s, bmap);
922 bmap = isl_basic_map_simplify(bmap);
923 bmap = isl_basic_map_finalize(bmap);
926 isl_basic_map_free(bmap);
930 static struct isl_map *map_read_polylib(struct isl_stream *s, int nparam)
932 struct isl_token *tok;
933 struct isl_token *tok2;
937 tok = isl_stream_next_token(s);
939 isl_stream_error(s, NULL, "unexpected EOF");
942 tok2 = isl_stream_next_token(s);
945 isl_stream_error(s, NULL, "unexpected EOF");
948 if (!tok2->on_new_line) {
949 isl_stream_push_token(s, tok2);
950 isl_stream_push_token(s, tok);
951 return isl_map_from_basic_map(basic_map_read_polylib(s, nparam));
953 isl_stream_push_token(s, tok2);
954 n = isl_int_get_si(tok->u.v);
957 isl_assert(s->ctx, n >= 1, return NULL);
959 map = isl_map_from_basic_map(basic_map_read_polylib(s, nparam));
961 for (i = 1; i < n; ++i)
962 map = isl_map_union(map,
963 isl_map_from_basic_map(basic_map_read_polylib(s, nparam)));
968 static struct isl_map *map_read_body(struct isl_stream *s,
969 __isl_take isl_basic_map *bmap, struct vars *v)
971 struct isl_map *map = NULL;
972 struct isl_token *tok;
975 bmap = read_tuple(s, bmap, isl_dim_in, v);
978 tok = isl_stream_next_token(s);
979 if (tok && tok->type == ISL_TOKEN_TO) {
981 bmap = read_tuple(s, bmap, isl_dim_out, v);
985 bmap = isl_basic_map_reverse(bmap);
987 isl_stream_push_token(s, tok);
989 tok = isl_stream_next_token(s);
991 isl_stream_error(s, NULL, "unexpected EOF");
994 map = isl_map_from_basic_map(isl_basic_map_copy(bmap));
995 if (tok->type == ':') {
997 map = isl_map_intersect(map,
998 read_disjuncts(s, v, isl_basic_map_get_dim(bmap)));
1000 isl_stream_push_token(s, tok);
1002 vars_drop(v, v->n - n);
1004 isl_basic_map_free(bmap);
1007 isl_basic_map_free(bmap);
1011 static struct isl_map *map_read(struct isl_stream *s, int nparam)
1013 struct isl_basic_map *bmap = NULL;
1014 struct isl_map *map = NULL;
1015 struct isl_token *tok;
1016 struct vars *v = NULL;
1018 tok = isl_stream_next_token(s);
1020 isl_stream_error(s, NULL, "unexpected EOF");
1023 if (tok->type == ISL_TOKEN_VALUE) {
1024 isl_stream_push_token(s, tok);
1025 return map_read_polylib(s, nparam);
1027 v = vars_new(s->ctx);
1028 bmap = isl_basic_map_alloc(s->ctx, 0, 0, 0, 0, 0, 0);
1029 if (tok->type == '[') {
1030 isl_stream_push_token(s, tok);
1031 bmap = read_tuple(s, bmap, isl_dim_param, v);
1035 isl_assert(s->ctx, nparam == v->n, goto error);
1036 tok = isl_stream_next_token(s);
1037 if (!tok || tok->type != ISL_TOKEN_TO) {
1038 isl_stream_error(s, tok, "expecting '->'");
1040 isl_stream_push_token(s, tok);
1043 isl_token_free(tok);
1044 tok = isl_stream_next_token(s);
1046 bmap = isl_basic_map_add(bmap, isl_dim_param, nparam);
1047 if (!tok || tok->type != '{') {
1048 isl_stream_error(s, tok, "expecting '{'");
1050 isl_stream_push_token(s, tok);
1053 isl_token_free(tok);
1055 map = map_read_body(s, isl_basic_map_copy(bmap), v);
1057 tok = isl_stream_next_token(s);
1058 if (tok && tok->type == '}') {
1059 isl_token_free(tok);
1061 isl_stream_error(s, tok, "unexpected isl_token");
1063 isl_token_free(tok);
1067 isl_basic_map_free(bmap);
1071 isl_basic_map_free(bmap);
1078 static struct isl_basic_map *basic_map_read(struct isl_stream *s, int nparam)
1080 struct isl_map *map;
1081 struct isl_basic_map *bmap;
1083 map = map_read(s, nparam);
1087 isl_assert(map->ctx, map->n <= 1, goto error);
1090 bmap = isl_basic_map_empty_like_map(map);
1092 bmap = isl_basic_map_copy(map->p[0]);
1102 __isl_give isl_basic_map *isl_basic_map_read_from_file(isl_ctx *ctx,
1103 FILE *input, int nparam)
1105 struct isl_basic_map *bmap;
1106 struct isl_stream *s = isl_stream_new_file(ctx, input);
1109 bmap = basic_map_read(s, nparam);
1114 __isl_give isl_basic_set *isl_basic_set_read_from_file(isl_ctx *ctx,
1115 FILE *input, int nparam)
1117 struct isl_basic_map *bmap;
1118 bmap = isl_basic_map_read_from_file(ctx, input, nparam);
1121 isl_assert(ctx, isl_basic_map_n_in(bmap) == 0, goto error);
1122 return (struct isl_basic_set *)bmap;
1124 isl_basic_map_free(bmap);
1128 struct isl_basic_map *isl_basic_map_read_from_str(struct isl_ctx *ctx,
1129 const char *str, int nparam)
1131 struct isl_basic_map *bmap;
1132 struct isl_stream *s = isl_stream_new_str(ctx, str);
1135 bmap = basic_map_read(s, nparam);
1140 struct isl_basic_set *isl_basic_set_read_from_str(struct isl_ctx *ctx,
1141 const char *str, int nparam)
1143 struct isl_basic_map *bmap;
1144 bmap = isl_basic_map_read_from_str(ctx, str, nparam);
1147 isl_assert(ctx, isl_basic_map_n_in(bmap) == 0, goto error);
1148 return (struct isl_basic_set *)bmap;
1150 isl_basic_map_free(bmap);
1154 __isl_give isl_map *isl_map_read_from_file(struct isl_ctx *ctx,
1155 FILE *input, int nparam)
1157 struct isl_map *map;
1158 struct isl_stream *s = isl_stream_new_file(ctx, input);
1161 map = map_read(s, nparam);
1166 __isl_give isl_map *isl_map_read_from_str(struct isl_ctx *ctx,
1167 const char *str, int nparam)
1169 struct isl_map *map;
1170 struct isl_stream *s = isl_stream_new_str(ctx, str);
1173 map = map_read(s, nparam);
1178 __isl_give isl_set *isl_set_read_from_file(struct isl_ctx *ctx,
1179 FILE *input, int nparam)
1181 struct isl_map *map;
1182 map = isl_map_read_from_file(ctx, input, nparam);
1185 isl_assert(ctx, isl_map_n_in(map) == 0, goto error);
1186 return (struct isl_set *)map;
1192 struct isl_set *isl_set_read_from_str(struct isl_ctx *ctx,
1193 const char *str, int nparam)
1195 struct isl_map *map;
1196 map = isl_map_read_from_str(ctx, str, nparam);
1199 isl_assert(ctx, isl_map_n_in(map) == 0, goto error);
1200 return (struct isl_set *)map;
1206 static char *next_line(FILE *input, char *line, unsigned len)
1211 if (!(p = fgets(line, len, input)))
1213 while (isspace(*p) && *p != '\n')
1215 } while (*p == '#' || *p == '\n');
1220 static struct isl_vec *isl_vec_read_from_file_polylib(struct isl_ctx *ctx,
1223 struct isl_vec *vec = NULL;
1232 isl_assert(ctx, next_line(input, line, sizeof(line)), return NULL);
1233 isl_assert(ctx, sscanf(line, "%u", &size) == 1, return NULL);
1235 vec = isl_vec_alloc(ctx, size);
1237 p = next_line(input, line, sizeof(line));
1238 isl_assert(ctx, p, goto error);
1240 for (j = 0; j < size; ++j) {
1241 n = sscanf(p, "%s%n", val, &offset);
1242 isl_assert(ctx, n != 0, goto error);
1243 isl_int_read(vec->el[j], val);
1253 struct isl_vec *isl_vec_read_from_file(struct isl_ctx *ctx,
1254 FILE *input, unsigned input_format)
1256 if (input_format == ISL_FORMAT_POLYLIB)
1257 return isl_vec_read_from_file_polylib(ctx, input);
1259 isl_assert(ctx, 0, return NULL);