efl base class - fix warning about comparing differing sizes

yes - we compare a difference between 2 ptrs and an index which is a
uint. the safe thing here is to promote the unit to the ptrdiff_t
type. reality is we cant have more than 2^32 cb's on an object
anyway... so this should be ok.

diff --git a/src/lib/eo/eo_base_class.c b/src/lib/eo/eo_base_class.c
index eac4bbb..2f3803a 100644 (file)
--- a/src/lib/eo/eo_base_class.c
+++ b/src/lib/eo/eo_base_class.c
@@ -1150,7 +1150,8 @@ _eo_callbacks_sorted_insert(Efl_Object_Data *pd, Eo_Callback_Description *cb)
    // Update possible event emissions
    for (frame = pd->event_frame; frame; frame = frame->next)
      {
-        if (itr-pd->callbacks < frame->idx) frame->inserted_before++;
+        if ((itr - pd->callbacks) < (ptrdiff_t)frame->idx)
+          frame->inserted_before++;
      }
 }