how to enable safeD ? dmd.conf ? dmd switch ?

[someone]

On Tuesday, 8 June 2021 at 02:59:28 UTC, rikki cattermole wrote:

> SafeD is an old name given to the attributes @safe @trusted 
> @system.

I have the Alexandrescu's book on hand so that explains it.

> There is no switch nor any special behavior now that it has 
> long been added to mainline D.

So DMD now enforces it by default ? Will it complain if I make 
something out of the ordinary then ?