Just an example, why D rocks, and C++ s***s...

[Dukc]

On Monday, 21 March 2022 at 15:23:21 UTC, Ola Fosheim Grøstad 
wrote:
> Does anyone have a list of usage scenarios for compile time 
> strings without string mixins that would motivate a programmer 
> to shift to another language to get it?

Stealing a bit of Symmetry Investments prototype code I'm 
currently working on to demonstrate.

```d
template addMonthsStick(DateType) {
     @SILdoc("Adds m number of months"
         ~ " to a " ~ __traits(identifier, DateType)
         ~ "[snip the rest of doc description]"
     )
     DateType addMonthsStick(DateType arg, long m) {/*...*/}
}
```

IOW, generating documentation for Symmetry Integration Language 
function at compile time.

Also, https://code.dlang.org/packages/pegged. While it works with 
string mixins, you can also make a separate program to generate 
the parser for your main project. That way you avoid having the 
compiler processing the PEG over and over again at compile time.