[OT] Re: Lack of `outer` keyword makes inner class dup implossible

[BCS]

S. wrote:
> It seems that because inner classes lack an `outer` keyword it is impossible for
> them to create a new instance for the purpose of COW when operators like opCom
> are called...
> 
> sudoku.d(318): outer class Foobar 'this' needed to 'new' nested class BarBar
> 
> 

sudoku.d as in the game? What does the program do? Is it a generator, a 
solver, or a player? I ask because I have a solver done and would be 
interested in comparing them.