From 0c719ea64b6f6efa1ebce6a5889d59d927303f9b Mon Sep 17 00:00:00 2001
From: Sven Verdoolaege <skimo@kotnet.org>
Date: Wed, 7 Apr 2010 17:17:03 +0200
Subject: [PATCH] iscc: add deltas operation

---
 doc/isl.tex | 3 +++
 iscc.c      | 2 ++
 2 files changed, 5 insertions(+)

diff --git a/doc/isl.tex b/doc/isl.tex
index f768e01..8ed0059 100644
--- a/doc/isl.tex
+++ b/doc/isl.tex
@@ -118,6 +118,9 @@ Cartesian product of $s_1$ and $s_2$
 $m_3$ := $m_1$ \ai[\tt]{cross} $m_2$ &
 Cartesian product of $m_1$ and $m_2$
 \\
+$s$ := \ai[\tt]{deltas} $m$ &
+the set $\{\, y - x \mid x \to y \in m \,\}$
+\\
 $s$ := \ai[\tt]{dom} $m$ &
 domain of map $m$
 \\
diff --git a/iscc.c b/iscc.c
index 59d872a..2a77787 100644
--- a/iscc.c
+++ b/iscc.c
@@ -347,6 +347,8 @@ struct isc_named_un_op named_un_ops[] = {
 	{"coalesce",	{ -1,	isl_obj_pw_qpolynomial_fold,
 		isl_obj_pw_qpolynomial_fold,
 		(isc_un_op_fn) &isl_pw_qpolynomial_fold_coalesce } },
+	{"deltas",	{ -1,	isl_obj_map,	isl_obj_set,
+		(isc_un_op_fn) &isl_map_deltas } },
 	{"dom",	{ -1,	isl_obj_map,	isl_obj_set,
 		(isc_un_op_fn) &isl_map_domain } },
 	{"dom",	{ -1,	isl_obj_pw_qpolynomial,	isl_obj_set,
-- 
2.11.4.GIT