associative arrays

[simendsjo]

On 08.01.2012 11:27, Jonathan M Davis wrote:
> On Sunday, January 08, 2012 11:02:41 simendsjo wrote:
>> On 08.01.2012 10:43, Jonathan M Davis wrote:
>>> On Sunday, January 08, 2012 03:24:22 Kapps wrote:
>>>> Ah, found the bug / pull request.
>>>>
>>>> https://github.com/D-Programming-Language/dmd/pull/597
>>>> http://d.puremagic.com/issues/show_bug.cgi?id=4523
>>>
>>> Ah, TDPL says that it returns bool. Well, then it definitely needs to be
>>> changed, and it's good to see that that there's a pull request for it.
>>> So, it should be fixed in the next release. In fact, the number of
>>> TDPL-related bugs fixed for the next release should be quite high,
>>> which is great.
>>>
>>> - Jonathan M Davis
>>
>> Wouldn't it make sense to return a pointer to the item being
>> removed/null? This way you can continue to work with the item, and it
>> would be consistent with `in`.
>>
>> if (auto item = aa.remove(key)) {
>>     // some additional work on item
>> } else { // not found
>>     // throw or something
>> }
>
> Since the element has been removed from the container, what would the pointer
> point to? The element doesn't exist anymore.
>
> - Jonathan m Davis

I was thinking it could be a shorthand for the following:

auto item = key in aa;
if (item) key.remove(key);