Required Reading: "How Non-Member Functions Improve Encapsulation"

[Kagamin]

On Friday, 27 October 2017 at 07:36:45 UTC, Jacob Carlborg wrote:
> On 2017-10-26 12:42, Kagamin wrote:
>
>> You mean non-member functions are preferred? I encountered 
>> this more from performance point: especially in case of small 
>> structures like Point it would be more beneficial to pass them 
>> by value than by reference, which can be achieved by extension 
>> methods, but then you need to import the respective module to 
>> have those extension methods available.
> Adding methods to a struct will not increase its size.

Instance methods require this be passed by reference, which 
requires storage fiddling on the caller side. It's likely to 
disappear after inlining, but still.