Re: time / update problem

Cheng-Chang Wu wrote:

>--- Frederic Merizen <[email protected]>
>wrote:
>  
>
>>TIME is an expanded class, so the qualified call
>>'c.never' returns a copy of 
>>the attribute. The call to 'update' only updates the
>>copy.
>>
>>I'd say there's a dessign lesson here: "think twice
>>before creating mutable 
>>expanded classes" (such as TIME - but I do not
>>intend to specifically 
>>criticize TIME here. There may well be good reasons
>>for this choice in the 
>>case of TIME - maybe a performance tradeoff. I don't
>>know for sure, I wasn't 
>>on the team yet when that class was written.)
>>
>>    
>>
>
>How can we set the initial value of a user defined
>immutable expanded type to a value different from the
>default value?
>
>Cheng-Chang Wu
>
>  
>
default_create should do the work

-- 
Philippe Ribet



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