[Biococoa-dev] BCSequenceRecord

[Koen van der Drift]

On Jul 10, 2005, at 8:11 PM, Charles Parnot wrote:

>
>> But if there is a way to have the immutable bcsequence have an NSData 
>> property and the mutable version have an NSMutableData then that 
>> would be more elegant obviously...
>> Cheers,
>> Alex
>
> You can set an ivar to be NSData, but make it an NSMutableData anyway. 
> With the proper casts, the compiler won't tell anything, and the 
> runtime won't bother... As long as you don't call the wrong methods on 
> the wrong type!!

That's seems very dangerous too!  I prefer Alex's suggestion, by using 
NSData for the immutable sequence and NSMutableData for the mutable 
one.

- Koen.