Calypso progress report (+ updated MingW64 build)

[Kagamin via Digitalmars-d-announce]

On Wednesday, 21 October 2015 at 23:40:15 UTC, Elie Morisse wrote:
> On Linux Calypso should be in a state usable enough to start a 
> project assuming the lack of C++ exceptions or class 
> destruction isn't a blocker to start it (but I'm looking into 
> the latter right now), it has held up quite well while 
> expanding the Ogre and Qt5 demos, and my own project based on 
> Qt5 and OpenCV.

Cool, is that a value type QString? Really? Then functions in Qt5 
demo should accept QString by ref to better match C++.
Are copy constructors and assignment operator invoked?
As I see default constructors are not invoked yet?