associative arrays: how to insert key and return pointer in 1 step to avoid searching twice

[Daniel Kozak via Digitalmars-d]

Dne 6.9.2016 v 06:14 mogu via Digitalmars-d napsal(a):

> On Tuesday, 6 September 2016 at 01:17:00 UTC, Timothee Cour wrote:
>> is there a way to do this efficiently with associative arrays:
>>
>> aa[key]=value;
>> auto ptr=key in aa;
>>
>> without suffering the cost of the 2nd search (compiler should know 
>> ptr during aa[key]=value but it's not exposed it seems)
>
> auto pa = &(aa[key] = value);

Yep, but this is a implementation detail, so be careful