dmd foreach loops throw exceptions on invalid UTF sequences, use replacementDchar instead

[Ola Fosheim Grøstad]

On Wednesday, 10 November 2021 at 11:47:16 UTC, Guillaume Piolat 
wrote:
> It seems in practice it doesn't have to be utf-8 until you use 
> something that assume it is. Which is ok for me.

Hm… for me the key advantage of stricter typing is that you can 
make more functions free of exceptions and error-handling without 
using much human judgment. The ideal is to only do error handling 
in I/O call-trees.