Getting the const-correctness of Object sorted once and for all

[Mehrdad]

On Monday, 14 May 2012 at 18:52:06 UTC, deadalnix wrote:
> The only reason I'd see a toSting function as non pure or non 
> const is memoize. It can be tackled with lib support in phobos.
> What are other uses cases ?

Not necessarily 'memoization' -- you could be instead querying
another object for this information, which may not be const.
(Say, a network connection.)