From: Sven Verdoolaege <skimo@kotnet.org>
Date: Wed, 11 Apr 2012 08:53:10 +0000 (+0200)
Subject: add isl_seq_abs_max
X-Git-Tag: isl-0.10~90
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=77f8b4bf10067e3fab6694b1c9002cb0dab8791f;p=platform%2Fupstream%2Fisl.git

add isl_seq_abs_max
---

diff --git a/include/isl/seq.h b/include/isl/seq.h
index eda8818..a84a3fa 100644
--- a/include/isl/seq.h
+++ b/include/isl/seq.h
@@ -36,6 +36,7 @@ void isl_seq_combine(isl_int *dst, isl_int m1, isl_int *src1,
 			isl_int m2, isl_int *src2, unsigned len);
 void isl_seq_elim(isl_int *dst, isl_int *src, unsigned pos, unsigned len,
 		  isl_int *m);
+void isl_seq_abs_max(isl_int *p, unsigned len, isl_int *max);
 void isl_seq_gcd(isl_int *p, unsigned len, isl_int *gcd);
 void isl_seq_lcm(isl_int *p, unsigned len, isl_int *lcm);
 void isl_seq_normalize(struct isl_ctx *ctx, isl_int *p, unsigned len);
diff --git a/isl_seq.c b/isl_seq.c
index dd80c19..8cf2996 100644
--- a/isl_seq.c
+++ b/isl_seq.c
@@ -194,6 +194,17 @@ int isl_seq_last_non_zero(isl_int *p, unsigned len)
 	return -1;
 }
 
+void isl_seq_abs_max(isl_int *p, unsigned len, isl_int *max)
+{
+	int i;
+
+	isl_int_set_si(*max, 0);
+
+	for (i = 0; i < len; ++i)
+		if (isl_int_abs_gt(p[i], *max))
+			isl_int_abs(*max, p[i]);
+}
+
 int isl_seq_abs_min_non_zero(isl_int *p, unsigned len)
 {
 	int i, min = isl_seq_first_non_zero(p, len);