How to let D's one module contains lots of classes.

[AlanThinker via Digitalmars-d]

On Sunday, 9 November 2014 at 10:02:41 UTC, bearophile wrote:
> AlanThinker:
>
>> If there all classes in one file, the file will be to big.
>
> The file will also probably contain several free functions, and 
> not just classes.
>
> Bye,
> bearophile

Is it possible to let one module contains lots of classes in 
different files, and free functions can live in one or several 
files.