From c0833989210714bc6974b77f40e59edc47d0cc68 Mon Sep 17 00:00:00 2001
From: Jacques Lucke <jacques@blender.org>
Date: Mon, 11 Jan 2021 14:58:29 +0100
Subject: BLI: fix math operation

That fixes a stupid mistake of mine that was copied a couple of times.
---
 source/blender/blenlib/BLI_double2.hh | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'source/blender/blenlib/BLI_double2.hh')

diff --git a/source/blender/blenlib/BLI_double2.hh b/source/blender/blenlib/BLI_double2.hh
index 621ac4d01fc..0abff01ab2f 100644
--- a/source/blender/blenlib/BLI_double2.hh
+++ b/source/blender/blenlib/BLI_double2.hh
@@ -120,7 +120,8 @@ struct double2 {
 
   static double distance_squared(const double2 &a, const double2 &b)
   {
-    return double2::dot(a, b);
+    double2 diff = a - b;
+    return double2::dot(diff, diff);
   }
 
   struct isect_result {
-- 
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