From 15a85172b778c3d57adb0e4e61842c0a4bcb4e44 Mon Sep 17 00:00:00 2001
From: Even Rouault <even.rouault@spatialys.com>
Date: Tue, 17 Sep 2019 21:08:41 +0200
Subject: isea: avoid undefined behaviour on left shift of negative value.
 Fixes https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=15009

---
 src/projections/isea.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'src/projections/isea.cpp')

diff --git a/src/projections/isea.cpp b/src/projections/isea.cpp
index c22e143d..d1aeab4a 100644
--- a/src/projections/isea.cpp
+++ b/src/projections/isea.cpp
@@ -902,7 +902,7 @@ static int isea_hex(struct isea_dgg *g, int tri,
     {
         throw "Invalid shift";
     }
-    hex->x = ((int)v.x << 4) + quad;
+    hex->x = ((int)v.x * 16) + quad;
     hex->y = v.y;
 
     return 1;
-- 
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