From 71b9532659abb531bd1597d88451426dcc895824 Mon Sep 17 00:00:00 2001
From: Li Jin <dragon-fly@qq.com>
Date: Tue, 5 Jan 2021 16:48:53 +0800
Subject: update Lua.

---
 src/lua/llimits.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'src/lua/llimits.h')

diff --git a/src/lua/llimits.h b/src/lua/llimits.h
index a76c13e..d039483 100644
--- a/src/lua/llimits.h
+++ b/src/lua/llimits.h
@@ -326,7 +326,8 @@ typedef l_uint32 Instruction;
 
 /* exponentiation */
 #if !defined(luai_numpow)
-#define luai_numpow(L,a,b)      ((void)L, l_mathop(pow)(a,b))
+#define luai_numpow(L,a,b)  \
+  ((void)L, (b == 2) ? (a)*(a) : l_mathop(pow)(a,b))
 #endif
 
 /* the others are quite standard operations */
-- 
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