don't understand?

Don't understand exactly.
Do you mean you got ++a=11 a++=11 by using gcc?

I use gcc, but got "++a=10, a++=12".
When using VC++, I got "++a=11, a++=11"

Is this the difference between __stdcall_ and __cdecl_?
If so, I need to go read docuemnts about that.

Thanks