associative arrays

simendsjo simendsjo at
Sun Jan 8 03:35:27 PST 2012

On 08.01.2012 12:18, Jonathan M Davis wrote:
> On Sunday, January 08, 2012 11:33:51 simendsjo wrote:
>> I was thinking it could be a shorthand for the following:
>> auto item = key in aa;
>> if (item) key.remove(key);
> I take it that you then intend to use item after that? I'm not sure that item
> is actually valid at that point. It points to memory which _was_ inside of aa
> but may or may not be now, depending on the AA implementation, and it may or
> may not be reused by aa. Because it's on the GC heap, the memory itself won't
> be invalid, but the memory could be reused by the AA for another element,
> depending on its implementation. If you're lucky, it's memory that's just
> sitting on the GC heap and now unrelated to the AA, but I wouldn't bet on it.
> I would _not_ consider that to be good code. It's just asking for trouble.
> - Jonathan M Davis

Ah.. This should be documented in
The only documentation for remove is:
Particular keys in an associative array can be removed with the remove 

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