Compile-time global mutables

[bauss]

On Thursday, 30 June 2022 at 13:16:48 UTC, Adam Ruppe wrote:
> On Thursday, 30 June 2022 at 12:26:54 UTC, HuskyNator wrote:
>> Essentially speaking, there are numerous instances in which 
>> generating a list or incrementing a value is useful during 
>> compile-time. I find this should be possible.
>
> What are those instances?
>
> The file example you showed is done with a perfectly normal 
> constructor, it loads the file before moving on.
>
> If you want to collect a bunch of things and load them at once, 
> you can use a module constructor; a  `static this` in a 
> template and the compiler adds them all together.
>
> Those module constructors can also increment normal runtime 
> variables.
>
> I've done a lot of things in D and managed to get by never 
> using a compile time counter...

Yeah, me too. The only time I have ever needed it was for 
demonstrating concepts that were specific to the language and not 
for any productive work.