On Wednesday, 6 January 2016 at 22:06:32 UTC, Namal wrote:
Do I have always to include std.stdio in every file like in the example or is it enough just to import a module which has this already included?
In every file that you use it, yes. Module imports are private to the module (well, unless you specifically mark them as public) which is different than C includes.
Why do I need to define my main as the main module? I can't imagine that I can import it somewhere else.
You can import it as long as you define it!
Is there something like #pragma once that needs to be done?
no need
