Calypso progress report (+ updated MingW64 build)

[Elie Morisse via Digitalmars-d-announce]

On Thursday, 22 October 2015 at 18:02:08 UTC, Kagamin wrote:
> Cool, is that a value type QString? Really? Then functions in 
> Qt5 demo should accept QString by ref to better match C++.

Not sure if I already announced it here but one major change a 
few months ago is that all C++ classes are now value types, it 
made things a lot saner.

I think the reason why Kelly didn't use ref was to be able to 
write loadFile(QString("myFilename")) instead of:

     auto s_myFilename = QString("myFilename");
     loadFile(s_myFilename); // only takes lvalues

Add me to the people who'd really love D to get through this once 
and for all btw :)

> Are copy constructors and assignment operator invoked?
> As I see default constructors are not invoked yet?

Default constructors are invoked, and I should have added another 
line to the list of main features:

  • Maps C++ overloaded operators to D operators when an 
equivalent exists (and others are mapped to normal functions 
named e.g __opUnaryArrow for operator->)

Since D doesn't support non-member overloaded operators those 
aren't usable as in C++, I need to work on a solution for this 
(there's already some groundwork actually, non-member operators 
that take for example a std::basic_string left operand are mapped 
as part of the std.basic_string module).

Currently copy constructors aren't invoked when calling functions 
with class/struct byval arguments, arguments are memcpy'd. This 
is another important missing feature I should implement asap.