From 817f8674af64a82c6f9c8b855446800a5642764e Mon Sep 17 00:00:00 2001
From: Roberto Ierusalimschy <roberto@inf.puc-rio.br>
Date: Thu, 16 Jun 2011 11:14:31 -0300
Subject: avoid warning about -unsigned value

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

(limited to 'lstrlib.c')

diff --git a/lstrlib.c b/lstrlib.c
index c90297b2..20199fdb 100644
--- a/lstrlib.c
+++ b/lstrlib.c
@@ -1,5 +1,5 @@
 /*
-** $Id: lstrlib.c,v 1.167 2011/05/03 16:01:57 roberto Exp roberto $
+** $Id: lstrlib.c,v 1.168 2011/06/09 18:22:47 roberto Exp roberto $
 ** Standard library for string operations and pattern-matching
 ** See Copyright Notice in lua.h
 */
@@ -45,7 +45,7 @@ static int str_len (lua_State *L) {
 /* translate a relative string position: negative means back from end */
 static size_t posrelat (ptrdiff_t pos, size_t len) {
   if (pos >= 0) return (size_t)pos;
-  else if (-(size_t)pos > len) return 0;
+  else if (0u - (size_t)pos > len) return 0;
   else return len - ((size_t)-pos) + 1;
 }
 
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