From dc4232379d79bc4ff5ad16bebf41793bb7ba6deb Mon Sep 17 00:00:00 2001
From: Roberto Ierusalimschy <roberto@inf.puc-rio.br>
Date: Fri, 2 Oct 2015 12:39:23 -0300
Subject: detail (ensure subtraction is done unsigned)

---
 lmathlib.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'lmathlib.c')

diff --git a/lmathlib.c b/lmathlib.c
index 4cfe33e8..8c9627c2 100644
--- a/lmathlib.c
+++ b/lmathlib.c
@@ -1,5 +1,5 @@
 /*
-** $Id: lmathlib.c,v 1.115 2015/03/12 14:04:04 roberto Exp roberto $
+** $Id: lmathlib.c,v 1.116 2015/06/26 19:30:32 roberto Exp $
 ** Standard mathematical library
 ** See Copyright Notice in lua.h
 */
@@ -39,7 +39,7 @@
 static int math_abs (lua_State *L) {
   if (lua_isinteger(L, 1)) {
     lua_Integer n = lua_tointeger(L, 1);
-    if (n < 0) n = (lua_Integer)(0u - n);
+    if (n < 0) n = (lua_Integer)(0u - (lua_Unsigned)n);
     lua_pushinteger(L, n);
   }
   else
-- 
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