I think this reply is detailed enough to explain why we need things like gint if there’s no other better solution:
http://talk.remobjects.com/t/mapped-class-to-wrapped-value-types-cant-work-as-expected/7635/4
Then on 8.3.92.1901, I can define the gint but it can’t work as a mapped type without explicitly defined gint<->int? operators, so it’s the bug 73822 I reported in this thread.
After 8.3.92.1901, I have no way to define the gint, because of the bug I reported here:
http://talk.remobjects.com/t/compile-error-when-map-to-normal-type/7803
Also I have no way to define implicit gint<->int? conversions as I reported here:
http://talk.remobjects.com/t/cant-define-implicit-conversion/7804