Feature to get or add value to an associative array.

[Nicholas Wilson]

On Tuesday, 17 April 2018 at 00:04:32 UTC, Cym13 wrote:
>     auto value = ptr ? *ptr : *ptr = default;

That is going to crash if ptr is null.

> is a new flag/method really that necessary? In my experience if 
> you have trouble naming it you haven't found its true purpose 
> yet.

I think `getOrInsert` is a good name for this function