What's the deal with "Warning: explicit element-wise assignment..."

[Dicebot via Digitalmars-d]

On Wednesday, 30 April 2014 at 11:20:40 UTC, Ola Fosheim Grøstad 
wrote:
> On Wednesday, 30 April 2014 at 11:13:46 UTC, John Colvin wrote:
>> walkLength is a really good name. Clear, concise, to the 
>> point. It's not often that you can make such a short name that 
>> explains the behaviour so well.
>
> Actually it isn't a good abstraction as it exposes 
> implementation internals.
>
> The name should indicate what you get (the calculating of a 
> result), not how the framework obtains it (sequential scan).
>
> "walk" indicates that you can use a visitor-pattern, thus it is 
> a misleading name.
>
> (Not that it matters.)

For algorithms execution complexity is not a mere implementation 
detail. "walk' implies exactly that it is O(n) as opposed to O(1) 
of built-in length properties. It is a wise approach.