X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/1e129b9677a4073030b6533743c3a84056275548..91f0f8acd7bb93039252812ab45521b948ff50f4:/include/xbt/swag.h

diff --git a/include/xbt/swag.h b/include/xbt/swag.h
index d4533a0684..5af75a74e6 100644
--- a/include/xbt/swag.h
+++ b/include/xbt/swag.h
@@ -46,3 +46,12 @@ static __inline__ void *xbt_swag_getFirst(xbt_swag_t swag)
    for((obj)=xbt_swag_getFirst((swag));                       \
        (obj)!=NULL;                                           \
        (obj)=xbt_swag_getNext((obj),(swag)->offset))
+
+#define xbt_swag_foreach_safe(obj,obj_next,swag)                  \
+   for((obj)=xbt_swag_getFirst((swag)),                           \
+       ((obj)?(obj_next=xbt_swag_getNext((obj),(swag)->offset)):  \
+	         (obj_next=NULL));                                \
+       (obj)!=NULL;                                               \
+       (obj)=obj_next,                                            \
+       ((obj)?(obj_next=xbt_swag_getNext((obj),(swag)->offset)):  \
+                 (obj_next=NULL))     )