Kinds of containers

[Ice Cream Man via Digitalmars-d]

On Wednesday, 21 October 2015 at 15:18:08 UTC, Ice Cream Man 
wrote:
> On Wednesday, 21 October 2015 at 14:06:43 UTC, Jonathan M Davis 
> wrote:
>> [...]
>
> I've found immutable containers useful when working with 
> configuration files. There are only a few places in a program 
> where you want to actively change values in a configuration 
> files (configure the values). For these instances it's useful 
> for the GUI or whatever to grab a mutable container to work 
> with. For all other areas, immutable containers are very 
> helpful in ensuring nobody accidentally modifies something they 
> shouldn't be outside of the provided sandboxes.

Actually, I think functional containers are probably more often 
than not the right tool for whatever it is you are doing. They 
just aren't convenient, because you might have to rethinking the 
architecture.