From e7ff93f844ce7b7356f6d743be27618d7539c885 Mon Sep 17 00:00:00 2001
From: aozhiwei <aozhiwe@kingsome.cn>
Date: Tue, 19 Mar 2019 11:41:19 +0800
Subject: [PATCH] 1

---
 a8/sysutils.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/a8/sysutils.h b/a8/sysutils.h
index 55fe1f6..71ead55 100644
--- a/a8/sysutils.h
+++ b/a8/sysutils.h
@@ -49,7 +49,7 @@ namespace a8
     }
 
     template <typename T>
-    const T& LengthSqr(const T& v)
+    float LengthSqr(const T& v)
     {
         return v.x * v.x + v.y * v.y;
     }