On 28.03.2016 03:44, sarn wrote:
https://theartofmachinery.com/2016/03/28/dirtying_pure_functions_can_be_useful.html
From there:
Well, you can get the usual (“strong”) purity guarantee just by making all pointer or reference type arguments const.
Indirections in the return type also play into this. David Nadlinger explains this in his article on the matter:
http://klickverbot.at/blog/2012/05/purity-in-d/#indirections-in-the-return-type
