cast(string) for mutable array

[H. S. Teoh]

On Fri, Jul 31, 2026 at 02:53:23PM +0000, user1234 via Digitalmars-d-learn wrote:
> On Friday, 31 July 2026 at 13:52:12 UTC, Vindex9 wrote:
> > Is this code normal? Why can't it be marked with `@safe`? Can only
> > `idup` be used for `@safe` in such cases?
> > 
> > ```d
> > string fn() @trusted pure {
> >     char[] arr;
> >     // some manipulations...
> >     return cast(string) arr;
> > }
> > ```
> > 
> > Where is the line between cases where the `@trusted` tag can be used and
> > cases where the `@system` tag can be used?
[...]

If the function is pure, you should be able to just return char[] and
the caller will be able to assign it to string.  No need for a cast.
Just specify the return type as `char[]`.


T

-- 
It always amuses me that Windows has a Safe Mode during bootup. Does that mean that Windows is normally unsafe?