From 29e8ffff1f03cc86737611eef16527f9f477dd6a Mon Sep 17 00:00:00 2001
From: Sven Verdoolaege <skimo@kotnet.org>
Date: Wed, 24 Sep 2008 17:16:00 +0200
Subject: [PATCH] add isl_map_deltas

---
 include/isl_map.h |  1 +
 isl_map.c         | 25 +++++++++++++++++++++++++
 2 files changed, 26 insertions(+)

diff --git a/include/isl_map.h b/include/isl_map.h
index 3196a93..1e656d2 100644
--- a/include/isl_map.h
+++ b/include/isl_map.h
@@ -193,6 +193,7 @@ struct isl_map *isl_map_subtract(struct isl_map *map1, struct isl_map *map2);
 struct isl_map *isl_map_fix_input_si(struct isl_map *map,
 		unsigned input, int value);
 struct isl_basic_set *isl_basic_map_deltas(struct isl_basic_map *bmap);
+struct isl_set *isl_map_deltas(struct isl_map *map);
 struct isl_set *isl_map_range(struct isl_map *map);
 struct isl_basic_map *isl_map_affine_hull(struct isl_map *map);
 
diff --git a/isl_map.c b/isl_map.c
index 9a135a9..7e2c8da 100644
--- a/isl_map.c
+++ b/isl_map.c
@@ -2869,6 +2869,31 @@ error:
 	return NULL;
 }
 
+/*
+ * returns range - domain
+ */
+struct isl_set *isl_map_deltas(struct isl_map *map)
+{
+	int i;
+	struct isl_set *result;
+
+	if (!map)
+		return NULL;
+
+	isl_assert(map->ctx, map->n_in == map->n_out, goto error);
+	result = isl_set_alloc(map->ctx, map->nparam, map->n_in, map->n, map->flags);
+	if (!result)
+		goto error;
+	for (i = 0; i < map->n; ++i)
+		result = isl_set_add(result,
+			  isl_basic_map_deltas(isl_basic_map_copy(map->p[i])));
+	isl_map_free(map);
+	return result;
+error:
+	isl_map_free(map);
+	return NULL;
+}
+
 /* If the only constraints a div d=floor(f/m)
  * appears in are its two defining constraints
  *
-- 
2.7.4