How to write a library

[Hipreme]

On Saturday, 21 January 2023 at 22:53:19 UTC, Matt wrote:
> I am trying to write a graphics engine for my university 
> capstone project, and really wanted to give it a try in D, as 
> both a talking point, and because I love the language. I'm 
> using dub to build the library, and the demo application 
> that'll use it.
>
> However, I've come across a problem. In C/C++, when you build a 
> library, you compile and link the source, then provide the 
> header files for the library user to include. I have built the 
> library, but what is the D equivalent to header files, and what 
> do I have to do to prepare and use my library in another 
> project?

For using your thing as a library you need to do 2 things:

1: Include the library files by using `importPaths` on dub or -I= 
on your favorite compiler
2: Add the linker flag to include the library.


importPaths don't compile your source files. Only templates and 
some ctfe features can be used when using importPaths.