Why string alias is invariant ?

[Janice Caron]

On 1/31/08, Sean Kelly <sean at f4.ca> wrote:
> And to do so the contents of data must be duplicated,

The problem there is the idup. Replace it with

     foreach( line; lines )
     {
         writefln( tolower( assumeUnique(line)) );
     }

and the duplication goes away.