avoid memmove(..,..,0) which seems to cause trouble to Cristian

[simgrid.git] / src / xbt / dynar.c

diff --git a/src/xbt/dynar.c b/src/xbt/dynar.c
index 906434b..dd449b8 100644 (file)
--- a/src/xbt/dynar.c
+++ b/src/xbt/dynar.c
@@ -171,9 +171,11 @@ _xbt_dynar_remove_at(xbt_dynar_t const dynar,
   }
 
   nb_shift = dynar->used - 1 - idx;
-  offset = nb_shift * dynar->elmsize;
 
-  memmove(_xbt_dynar_elm(dynar, idx), _xbt_dynar_elm(dynar, idx + 1), offset);
+  if (nb_shift) {
+    offset = nb_shift * dynar->elmsize;
+    memmove(_xbt_dynar_elm(dynar, idx), _xbt_dynar_elm(dynar, idx + 1), offset);
+  }
 
   dynar->used--;
 }