DLLs - Global Parameters, Pure Subroutines

Hello, Everyone,

Is there a way to store global parameters in a .DLL? If so, how can they be called? I've tried

MODULE mod_double
	IMPLICIT NONE
    
!	Double precision
	INTEGER,PARAMETER::DP=KIND(0.0D0)
END MODULE mod_double 

in the DLL but when using the parameter in a program I got a message, that a constant was expected.

The other issue is the PURE attribute, which seems to get lost somewhere on the way. As long as the pure subroutines are called from internal modules, it works just fine. But as soon as they're called from DLLs, they aren't pure anymore. Any advice on that?

Thanks a lot!

You can store parameters in a DLL but you can't access them directly by name. You could provide a function that maps an index for each parameter to the output of the function.

Thanks for the advice. Do you also have an idea, why PURE functions/subroutines don't remain pure?

I may have to pass on that question. How do you know that they are no longer PURE and why is it of interest?

I apply them to arrays using FORALL. Before i moved them to the DLL it worked, now I get an error, stating that PURE functions/subroutines are required.

I'll also include that in the example from the other thread (https://forums.silverfrost.com/Forum/Topic/3152).