Am Mittwoch, den 03.06.2009, 22:18 +0100 schrieb Chris Vine: > And note that because the argument is untyped (it is an elipsis > argument) you cannot use the normal C++ 0 as a synonym for NULL.
Note that in a C++ context, NULL is usually #define NULL 0 or #define NULL 0L The latter works on most 64 bit machines as a varargs sentinel, but only by accident. It is not guaranteed by the C or C++ standard. > You must either use NULL explicitly or, if you want something more C++ > like, cast to void* with static_cast<void*>(0). Otherwise on 64 bit > systems the 0 will be treated as a 32 bit integer rather than a 64 bit > pointer. An explicit cast of 0 to pointer type is in fact the only safe way. --Daniel _______________________________________________ gtkmm-list mailing list [email protected] http://mail.gnome.org/mailman/listinfo/gtkmm-list
