File extension of c++ files used on d compiler sources

[Jesse Phillips via Digitalmars-d]

On Monday, 14 July 2014 at 23:14:52 UTC, Domingo Alvarez Duarte 
wrote:
> It's fine that D is innovating in the programming language 
> field but not all conventions are bad ones.
>
> Cheers !

Legacy, pretty sure the early C++ days used .c and Walters 
compiler comes from those early days.

I believe it hasn't change because of cost/benefit.