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Re: CFMutableStringRef creation question

Laurence Harris wrote:
Frankly, the whole mutable/immutable thing seems confusing at times. For
example, what's the point of specifying a capacity when creating a mutable
CF object? I've never been able to detect a performance different when
specifying a maximum capacity. Do the immutable variants offer any
advantages over their mutable counterparts?
For the same reasons that you'd specify a starting capacity when creating a hash table, or call reserve on a vector, etc. Everything will behave the same, but fewer trips into the allocator and fewer memcpy's. This might not be a significant win for some types of code, but for others it may be quite important.

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