X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/30f1c8c5e4b8a7b6e593c7bb885ffad766ae6f5d..12bd9c96c1d310b97f7827e13a8bb0cf8d72124d:/src/xbt/swag.c

diff --git a/src/xbt/swag.c b/src/xbt/swag.c
index 1b1fc12671..1a75c7f93d 100644
--- a/src/xbt/swag.c
+++ b/src/xbt/swag.c
@@ -65,6 +65,9 @@ XBT_INLINE void xbt_swag_init(xbt_swag_t swag, size_t offset)
  */
 XBT_INLINE void xbt_swag_insert_at_head(void *obj, xbt_swag_t swag)
 {
+  xbt_assert(!xbt_swag_belongs(obj, swag) || swag->tail,
+      "This object belongs to an empty swag! Did you correctly initialize the object's hookup?");
+
   if (!swag->head) {
     xbt_assert(!(swag->tail), "Inconsistent swag.");
     swag->head = obj;
@@ -88,12 +91,11 @@ XBT_INLINE void xbt_swag_insert_at_head(void *obj, xbt_swag_t swag)
  */
 XBT_INLINE void xbt_swag_insert_at_tail(void *obj, xbt_swag_t swag)
 {
-  if (xbt_swag_belongs(obj, swag)) {
-    return;
-  }
+  xbt_assert(!xbt_swag_belongs(obj, swag) || swag->tail,
+      "This object belongs to an empty swag! Did you correctly initialize the object's hookup?");
 
-  if (!swag->tail) {
-    xbt_assert(!(swag->head), "Inconsistent swag.");
+  if (!swag->head) {
+    xbt_assert(!(swag->tail), "Inconsistent swag.");
     swag->head = obj;
     swag->tail = obj;
     swag->count++;
@@ -216,8 +218,9 @@ XBT_TEST_UNIT("basic", test_swag_basic, "Basic usage")
   xbt_swag_insert(obj2, setA);
   xbt_swag_insert(obj2, setB);
 
-  xbt_swag_remove(obj1, setB);
-  /*  xbt_swag_remove(obj2, setB); */
+  xbt_test_assert(xbt_swag_remove(NULL, setB) == NULL);
+  xbt_test_assert(xbt_swag_remove(obj1, setB) == obj1);
+  /*  xbt_test_assert(xbt_swag_remove(obj2, setB) == obj2); */
 
   xbt_test_add("Traverse set A");
   xbt_swag_foreach(obj, setA) {