From 621ef9f7675829234e75b0b3e73afc7a1a74aa16 Mon Sep 17 00:00:00 2001
From: Roberto Ierusalimschy <roberto@inf.puc-rio.br>
Date: Wed, 19 Jan 2005 13:54:26 -0200
Subject: better control over GC collors of upvalues

---
 lgc.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'lgc.h')

diff --git a/lgc.h b/lgc.h
index f8a18782..bec5a728 100644
--- a/lgc.h
+++ b/lgc.h
@@ -1,5 +1,5 @@
 /*
-** $Id: lgc.h,v 2.8 2004/08/30 13:44:44 roberto Exp roberto $
+** $Id: lgc.h,v 2.9 2004/09/15 20:38:15 roberto Exp $
 ** Garbage Collector
 ** See Copyright Notice in lua.h
 */
@@ -66,6 +66,7 @@
 #define isdead(g,v)	((v)->gch.marked & otherwhite(g))
 
 #define changewhite(x)	((x)->gch.marked ^= bit2mask(WHITE0BIT, WHITE1BIT))
+#define gray2black(x)	setbit((x)->gch.marked, BLACKBIT)
 
 #define valiswhite(x)	(iscollectable(x) && iswhite(gcvalue(x)))
 
-- 
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