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Hi Kohei,

On Friday, 2012-01-27 09:53:50 -0500, Kohei Yoshida wrote:

4) Last point.  List takes ownership of the contained objects, which
means it automatically deletes those objects when destroyed.  When you
use vector, that convenience is gone, so you'll need to manually delete
the contained objects.  Or, in this case it's probably better to use
ptr_vector instead.

Actually no, List does not take ownership of objects and does not delete
upon destruction! Ownership is only with SV_DECL_PTRARR_DEL and
SV_DECL_PTRARR_SORT_DEL

5) One caveat: List::Next() (and in general Next() of Container derived
   classes) return NULL if invoked on the last element. Care has to be
   taken when replacing
   for (p = list.First(); p; p = list.Next())
   with
   for (it = list.begin(); it != list.end(); ++it)
   If p is accessed after the loop it was NULL after the last element if
   the loop didn't break before, but from the last valid iterator (p=*it
   or some such) it will be non-NULL instead, the pointer of the last
   element. In such cases p needs to get explicitly assigned NULL if
   list reached end.


  Eike

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