From 926e086550c525ae9cd07f7521e9c524ca9db607 Mon Sep 17 00:00:00 2001
From: Marius Gavrilescu <marius@ieval.ro>
Date: Sat, 17 Jun 2017 21:25:37 +0300
Subject: [PATCH] Fix segmentation fault

---
 XS.xs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/XS.xs b/XS.xs
index 940807b..182c514 100644
--- a/XS.xs
+++ b/XS.xs
@@ -89,7 +89,7 @@ IV bit2d_query(bit2d *b, IV i1, IV i2) {
 	while(i1) {
 		i2 = i2c;
 		while(i2)
-			ret += b->t[i1 * b->n + i2], i2 -= i2 & -i2;
+			ret += b->t[i1 * b->m + i2], i2 -= i2 & -i2;
 		i1 -= i1 & -i1;
 	}
 	return ret;
@@ -108,7 +108,7 @@ void bit2d_update(bit2d *b, IV i1, IV i2, IV value) {
 	while(i1 < b->n) {
 		i2 = i2c;
 		while(i2 < b->m)
-			b->t[i1 * b->n + i2] += value, i2 += i2 & -i2;
+			b->t[i1 * b->m + i2] += value, i2 += i2 & -i2;
 		i1 += i1 & -i1;
 	}
 }
-- 
2.30.2