From 5c9cb5f0b108435204d03f5b282dff8a18665b4b Mon Sep 17 00:00:00 2001
From: Roberto Ierusalimschy <roberto@inf.puc-rio.br>
Date: Wed, 26 Feb 2014 09:38:18 -0300
Subject: detail (comment)

---
 lbitlib.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/lbitlib.c b/lbitlib.c
index 76d5358e..bca7ba43 100644
--- a/lbitlib.c
+++ b/lbitlib.c
@@ -1,5 +1,5 @@
 /*
-** $Id: lbitlib.c,v 1.21 2013/07/09 17:49:50 roberto Exp roberto $
+** $Id: lbitlib.c,v 1.22 2013/07/09 18:31:01 roberto Exp roberto $
 ** Standard library for bitwise operations
 ** See Copyright Notice in lua.h
 */
@@ -19,7 +19,11 @@
 #endif
 
 
-
+/*
+** a lua_Unsigned with its first LUA_NBITS bits equal to 1. (Shift must
+** be made in two parts to avoid problems when LUA_NBITS is equal to the
+** number of bits in a lua_Unsigned.)
+*/
 #define ALLONES		(~(((~(lua_Unsigned)0) << (LUA_NBITS - 1)) << 1))
 
 
-- 
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