Writing Program Without main Function

Samir samir at aol.com
Sat Dec 8 13:02:27 UTC 2018


On Saturday, 8 December 2018 at 03:30:30 UTC, Jonathan M Davis 
wrote:
> There's one main per program, not per module. Where main lives 
> depends on how the program was written, but dub encourages 
> putting it in app.d, because that's what it generates when you 
> create a new dub project. imports then provide access to other 
> modules so that the code doing the importing can use it. You 
> can think of it like the module with main being the start of 
> the import tree, though it's a bit more complicated than that 
> in practice, since modules can be compiled separately, and main 
> only has to be there when the program is finally linked. But in 
> concept, you have main and the module its in importing other 
> modules, which then import other modules, etc. until you get 
> all of the code in the program.
>
> - Jonathan M Davis

Thanks for all of the great feedback and explanations, Jonathan!  
Looks like I need to add dub to the list of things I still need 
to learn about.


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