What are the worst parts of D?

[deadalnix via Digitalmars-d]

On Wednesday, 24 September 2014 at 00:08:19 UTC, H. S. Teoh via 
Digitalmars-d wrote:
> You *will* need SFINAE if you expect to interface C++ template 
> libraries
> with D. Imagine that an existing codebase is using some C++ 
> template
> library that depends on SFINAE. You'd like to start migrating 
> to D, so
> you start writing new code in D. Eventually you need to make 
> use of the
> C++ template library in order to interface with the C++ parts 
> of the
> code, so you write a .di that declares template functions in an
> extern(c++) block. It works...  some of the time. Other times 
> you start
> getting weird errors or the wrong functions get called, because 
> the C++
> template library was written with SFINAE in mind, but D doesn't 
> have
> that. So at the end of the day, it's a gigantic mess, and you go
> crawling back to C++.
>

I think you can support a large part of C++ template without 
SFINAE. It is not that common and only matter for the binding if 
it changes the interface or the layout of something.

If one want to map these, it can be done with some static if 
magic. But I'm fairly confident that it won't even be necessary 
is most situations.