multiple opApply functions?

[Jarrett Billingsley]

"Bill Baxter" <dnewsgroup at billbaxter.com> wrote in message 
news:f2uij0$2a3e$1 at digitalmars.com...
>
> But if you're passing a reference (a class instance or array) then "by 
> value" means the pointer to the class or array is passed by value. 
> Modifications to the contents are visible to the caller, modification of 
> the pointer itself is not.
>
> --bb

Good clarification.