From 1e129b9677a4073030b6533743c3a84056275548 Mon Sep 17 00:00:00 2001
From: alegrand <alegrand@48e7efb5-ca39-0410-a469-dd3cf9ba447f>
Date: Tue, 16 Nov 2004 22:54:07 +0000
Subject: [PATCH 1/1] Gasp ! A bug in the extract function ! Shame on me !

git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/simgrid/simgrid/trunk@519 48e7efb5-ca39-0410-a469-dd3cf9ba447f
---
 src/xbt/swag.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/xbt/swag.c b/src/xbt/swag.c
index 42ae4ef19b..dc09977550 100644
--- a/src/xbt/swag.c
+++ b/src/xbt/swag.c
@@ -59,6 +59,10 @@ void *xbt_swag_extract(void *obj, xbt_swag_t swag)
 
   if (!obj)
     return NULL;
+  if(!xbt_swag_belongs(obj, swag)) /* Trying to remove an object that
+				      was not in this swag */
+      return NULL;
+
   if (swag->head == swag->tail) {	/* special case */
     if (swag->head != obj)	/* Trying to remove an object that was not in this swag */
       return NULL;
-- 
2.20.1