From: Sven Verdoolaege <skimo@kotnet.org>
Date: Fri, 25 Jun 2010 12:31:09 +0000 (+0200)
Subject: add isl_vec_scale
X-Git-Tag: isl-0.03~92
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=84004553fb4a9dd80a46b2d0ecb1f4cb90899ce9;p=platform%2Fupstream%2Fisl.git

add isl_vec_scale
---

diff --git a/include/isl_vec.h b/include/isl_vec.h
index cc94c7c..746b70f 100644
--- a/include/isl_vec.h
+++ b/include/isl_vec.h
@@ -42,6 +42,7 @@ void isl_vec_dump(struct isl_vec *vec, FILE *out, int indent);
 void isl_vec_lcm(struct isl_vec *vec, isl_int *lcm);
 struct isl_vec *isl_vec_ceil(struct isl_vec *vec);
 struct isl_vec *isl_vec_normalize(struct isl_vec *vec);
+__isl_give isl_vec *isl_vec_scale(__isl_take isl_vec *vec, isl_int m);
 
 struct isl_vec *isl_vec_read_from_file(struct isl_ctx *ctx,
 		FILE *input, unsigned input_format);
diff --git a/isl_vec.c b/isl_vec.c
index b052bb1..c16d71a 100644
--- a/isl_vec.c
+++ b/isl_vec.c
@@ -127,3 +127,14 @@ struct isl_vec *isl_vec_normalize(struct isl_vec *vec)
 	isl_seq_normalize(vec->ctx, vec->el, vec->size);
 	return vec;
 }
+
+__isl_give isl_vec *isl_vec_scale(__isl_take isl_vec *vec, isl_int m)
+{
+	if (isl_int_is_one(m))
+		return vec;
+	vec = isl_vec_cow(vec);
+	if (!vec)
+		return NULL;
+	isl_seq_scale(vec->el, vec->el, m, vec->size);
+	return vec;
+}