How do you create a .di file for multiple .d files?

Jesse Phillips jessekphillips+D at
Tue Oct 12 16:07:29 PDT 2010

Jonathan M Davis Wrote:

> Okay, I'm trying to figure out how to take multiple .d files and use a single .di 
> file for them. It looks like if you have x.di file with a corresponding x.d file 
> (so, only one .d file), you put package x; at the top of both files, and dmd is 
> able to deal with it, knowing that the .d file holds the implementation for the 
> .di file. But what about multiple .d files? I very much doubt that you can put 
> package x; at the top of several .d files and have dmd be happy with you. You 
> can't do that normally, but maybe you can do that if you have a .di file?

I don't use .di files but it sounds like you what to use them for a different purpose then what they are for. The .di is actually telling the linker where it needs to find the functions. If you provide functions from multiple modules, how will the linker know which module to look in to get the code?

Also if you have the .d file there is no need for the .di file (they aren't header files). So what is the reason for only wanting one .di file?

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