Weak Purity Blog Post

[deadalnix via Digitalmars-d-announce]

On Monday, 28 March 2016 at 05:21:36 UTC, Joakim wrote:
> On Monday, 28 March 2016 at 01:44:02 UTC, sarn wrote:
>> D's implementation of functional purity supports "weak" purity 
>> - functions that can mutate arguments but are otherwise 
>> traditionally pure.
>>
>> I wrote a post about some of the practical benefits of this 
>> kind of purity:
>>
>> https://theartofmachinery.com/2016/03/28/dirtying_pure_functions_can_be_useful.html
>
> Very well-written, someone post it on Reddit.

https://www.reddit.com/r/programming/comments/4c8zs6/how_dirtying_pure_functions_a_little_can_be/