Copy Constructor DIP

[RazvanN via Digitalmars-d]

Hi everyone!

I managed to put together a first draft of the DIP for adding the 
copy constructor to the language [1]. If anyone is interested, 
please take a look. Suggestions and comments about technical 
aspects and wording are all welcome.

Thanks,
RazvanN

[1] https://github.com/dlang/DIPs/pull/129